SGP/AOS/C1 - Humidograph water circulation system failure

The water circulation system for the AOS humidograph failed.  Consequently, the humidified 
nephelometer was reporting aerosol light scattering values during this period that were 
close to what the reference nephelometer was observing. The difference between the two 
sets of measurements reflect particle losses in the humidifier and different temperature 
environments for the two instruments. Humidified nephelometer data during this period are 
technically valid, they just do not reflect relative humidity scans (the normal operating 
mode).

• Backscattering coefficient at 10 um from 700 nm TSI High RH Nephelometer(RedBScatCoef_10um_HRH)
• Backscattering coefficient at 1 um from 550 nm TSI High RH Nephelometer(GrnBScatCoef_1um_HRH)
• Total scattering coefficient at 10 um from 550 nm TSI High RH Nephelometer(GrnTScatCoef_10um_HRH)
• Backscattering coefficient at 10 um from 550 nm TSI High RH Nephelometer(GrnBScatCoef_10um_HRH)
• Total scattering coefficient at 10 um from 450 nm TSI High RH Nephelometer(BluTScatCoef_10um_HRH)
• Backscattering coefficient at 10 um, from 450 nm TSI High RH Nephelometer(BluBScatCoef_10um_HRH)
• Total scattering coefficient at 10 um from 700 nm TSI High RH Nephelometer(RedTScatCoef_10um_HRH)
• Backscattering coefficient at 1 um, from 450 nm TSI High RH Nephelometer(BluBScatCoef_1um_HRH)
• Total scattering coefficient at 1 um from 700 nm TSI High RH Nephelometer(RedTScatCoef_1um_HRH)
• Total scattering coefficient at 1 um from 550 nm TSI High RH Nephelometer(GrnTScatCoef_1um_HRH)
• Total scattering coefficient at 1 um from 450 nm TSI High RH Nephelometer(BluTScatCoef_1um_HRH)
• Backscattering coefficient at 1 um from 700 nm TSI High RH Nephelometer(RedBScatCoef_1um_HRH)

SGP/AOS/C1 - CN counter removed

The AOS condensation particle counter performance degraded to unacceptable
levels and was removed for repair.  

For the first time period: upon inspection of the internal condition of the instrument, it 
was found that oil was present in the intake line.  It is unknown how this oil could 
have arrived in this position.  The instrument was thoroughly cleaned and back-flushed, and 
returned to service during the maintenance visit.

For the second time period: The degradation of began July 8th.  Data collected during this 
time period are either incorrect or missing and should not be used.

• Particle concentration from Condensation Particle Counter(CPCPartConc)

SGP/AOS/C1 - Nephelometer failure

An inexperienced AOS technician inadvertently closed off the flow to the dual-nephelometer 
humidograph system during a Friday Preventative Maintenance.  This resulted in liquid 
water getting into the humidified nephelometer.  Flow was restored to the system on Monday, 
but the nephelometers were producing strange data.  A number of tests were performed 
over the next few days to remotely troubleshoot the situation, to no avail.  Eventually, the 
decision was made to pull both nephelometers and return them to Boulder for repair.  
This DQR refers only to the reference nephelometer, which was out of service for 2 periods 
due to 2 separate problems.  This DQR is for the first period, from 000602 (1842 GMT) to 
000616 (2234 GMT).  Light absorption are invalid whenever the reference nephelometer is 
not operational, because those data are required for correction of the absorption data.

• Total scattering coefficient at 1 um from 700 nm TSI Low RH Nephelometer(RedTScatCoef_1um_LRH)
• Backscattering coefficient at 10 um, from 450 nm TSI Low RH Nephelometer(BluBScatCoef_10um_LRH)
• Backscattering coefficient at 1 um, from 450 nm TSI Low RH Nephelometer(BluBScatCoef_1um_LRH)
• Backscattering coefficient at 1 um from 550 nm TSI Low RH Nephelometer(GrnBScatCoef_1um_LRH)
• Absorption coefficient at 10 um(Bap_I_10um)
• Total scattering coefficient at 1 um from 550 nm TSI Low RH Nephelometer(GrnTScatCoef_1um_LRH)
• Total scattering coefficient at 10 um from 700 nm TSI Low RH Nephelometer(RedTScatCoef_10um_LRH)
• Total scattering coefficient at 10 um from 550 nm TSI Low RH Nephelometer(GrnTScatCoef_10um_LRH)
• Backscattering coefficient at 1 um from 700 nm TSI Low RH Nephelometer(RedBScatCoef_1um_LRH)
• Total scattering coefficient at 10 um from 450 nm TSI Low RH Nephelometer(BluTScatCoef_10um_LRH)
• Absorption coefficient at 1 um(Bap_I_1um)
• Backscattering coefficient at 10 um from 550 nm TSI Low RH Nephelometer(GrnBScatCoef_10um_LRH)
• Total scattering coefficient at 1 um from 450 nm TSI Low RH Nephelometer(BluTScatCoef_1um_LRH)
• Backscattering coefficient at 10 um from 700 nm TSI Low RH Nephelometer(RedBScatCoef_10um_LRH)

• BluBScatZero_LRH
• BapRef
• GrnTScatZero_LRH
• GrnRScatZero_LRH
• GrnTScatSpn_LRH
• RedTScatSpn_LRH
• RedTScatZero_LRH
• BluRScatZero_LRH
• RedRScatZero_LRH
• BapSignal
• RedBScatSpn_LRH
• RedBScatZero_LRH
• GrnBScatSpn_LRH
• BluBScatSpn_LRH
• BluTScatZero_LRH
• GrnBScatZero_LRH
• BluTScatSpn_LRH

SGP/AOS/C1 - Nephelometer failure

An inexperienced AOS technician inadvertently closed off the flow to the dual-nephelometer 
humidograph system during a Friday Preventative Maintenance.  This resulted in liquid 
water getting into the humidified nephelometer.  Flow was restored to the system on Monday, 
but the nephelometers were producing strange data.  A number of tests were performed 
over the next few days to remotely troubleshoot the situation, to no avail.  Eventually, the 
decision was made to pull both nephelometers and return them to Boulder for repair.  
This DQR refers only to the reference nephelometer, which was out of service for 2 periods 
due to 2 separate problems.  This DQR is for the second period, from 000620 (1340 GMT) to 
000703 (1833 GMT).  Light absorption measurements are invalid whenever the reference 
nephelometer is not operational, because those data are required for correction of the 
absorption data.

• Total scattering coefficient at 1 um from 700 nm TSI Low RH Nephelometer(RedTScatCoef_1um_LRH)
• Backscattering coefficient at 10 um, from 450 nm TSI Low RH Nephelometer(BluBScatCoef_10um_LRH)
• Backscattering coefficient at 1 um, from 450 nm TSI Low RH Nephelometer(BluBScatCoef_1um_LRH)
• Backscattering coefficient at 1 um from 550 nm TSI Low RH Nephelometer(GrnBScatCoef_1um_LRH)
• Absorption coefficient at 10 um(Bap_I_10um)
• Total scattering coefficient at 1 um from 550 nm TSI Low RH Nephelometer(GrnTScatCoef_1um_LRH)
• Total scattering coefficient at 10 um from 700 nm TSI Low RH Nephelometer(RedTScatCoef_10um_LRH)
• Total scattering coefficient at 10 um from 550 nm TSI Low RH Nephelometer(GrnTScatCoef_10um_LRH)
• Backscattering coefficient at 1 um from 700 nm TSI Low RH Nephelometer(RedBScatCoef_1um_LRH)
• Total scattering coefficient at 10 um from 450 nm TSI Low RH Nephelometer(BluTScatCoef_10um_LRH)
• Absorption coefficient at 1 um(Bap_I_1um)
• Backscattering coefficient at 10 um from 550 nm TSI Low RH Nephelometer(GrnBScatCoef_10um_LRH)
• Total scattering coefficient at 1 um from 450 nm TSI Low RH Nephelometer(BluTScatCoef_1um_LRH)
• Backscattering coefficient at 10 um from 700 nm TSI Low RH Nephelometer(RedBScatCoef_10um_LRH)

• BluBScatZero_LRH
• BapRef
• GrnTScatZero_LRH
• GrnRScatZero_LRH
• GrnTScatSpn_LRH
• RedTScatSpn_LRH
• RedTScatZero_LRH
• BluRScatZero_LRH
• RedRScatZero_LRH
• BapSignal
• RedBScatSpn_LRH
• RedBScatZero_LRH
• GrnBScatSpn_LRH
• BluBScatSpn_LRH
• BluTScatZero_LRH
• GrnBScatZero_LRH
• BluTScatSpn_LRH

SGP/AOS/C1 - Nephelometer failure

An inexperienced AOS technician inadvertently closed off the flow to the dual-nephelometer 
humidograph system during a Friday Preventative Maintenance.  This resulted in liquid 
water getting into the humidified nephelometer.  Flow was restored to the system on Monday, 
but the nephelometers were producing strange data.  A number of tests were performed 
over the next few days to remotely troubleshoot the situation, to no avail.  Eventually, the 
decision was made to pull both nephelometers and return them to Boulder for repair.  
This DQR refers only to the humidified nephelometer, which was out of service for the entire 
period from 000602 through 000703.

• Backscattering coefficient at 10 um from 550 nm TSI High RH Nephelometer(GrnBScatCoef_10um_HRH)
• Total scattering coefficient at 1 um from 550 nm TSI High RH Nephelometer(GrnTScatCoef_1um_HRH)
• Absorption coefficient at 10 um(Bap_I_10um)
• Total scattering coefficient at 1 um from 450 nm TSI High RH Nephelometer(BluTScatCoef_1um_HRH)
• Backscattering coefficient at 1 um from 700 nm TSI High RH Nephelometer(RedBScatCoef_1um_HRH)
• Backscattering coefficient at 1 um from 550 nm TSI High RH Nephelometer(GrnBScatCoef_1um_HRH)
• Total scattering coefficient at 10 um from 550 nm TSI High RH Nephelometer(GrnTScatCoef_10um_HRH)
• Total scattering coefficient at 10 um from 450 nm TSI High RH Nephelometer(BluTScatCoef_10um_HRH)
• Total scattering coefficient at 1 um from 700 nm TSI High RH Nephelometer(RedTScatCoef_1um_HRH)
• Absorption coefficient at 1 um(Bap_I_1um)
• Backscattering coefficient at 10 um from 700 nm TSI High RH Nephelometer(RedBScatCoef_10um_HRH)
• Backscattering coefficient at 10 um, from 450 nm TSI High RH Nephelometer(BluBScatCoef_10um_HRH)
• Total scattering coefficient at 10 um from 700 nm TSI High RH Nephelometer(RedTScatCoef_10um_HRH)
• Backscattering coefficient at 1 um, from 450 nm TSI High RH Nephelometer(BluBScatCoef_1um_HRH)

• RedTScatZero_HRH
• GrnRScatZero_HRH
• BluTScatZero_HRH
• BluRScatZero_HRH
• GrnBScatSpn_HRH
• BapRef
• RedRScatZero_HRH
• BluBScatZero_HRH
• GrnTScatSpn_HRH
• RedBScatZero_HRH
• BluBScatSpn_HRH
• BapSignal
• GrnTScatZero_HRH
• BluTScatSpn_HRH
• RedTScatSpn_HRH
• GrnBScatZero_HRH
• RedBScatSpn_HRH

SGP/SONDE/C1 - Bad temp (other?) data in 12/3/01:2328 sounding

It looks as though the temperature sensor was damaged on launch.  The
recorded temp goes from 16.4 at the surface to -42.6 at 2 seconds into the
flight.  The temperature never exceeds -42 though the RH and pressure look
reasonable, but probably should be considered questionable.

• Raw data stream - documentation not supported

• Raw data stream - documentation not supported

• Dry Bulb Temperature(tdry)
• Dewpoint Temperature(dp)
• Humidity, relative(rh)

• Dry Bulb Temperature(tdry)
• Dewpoint Temperature(dp)
• Humidity, relative(rh)

SGP/SONDE/C1 - Bad temperature in CF sounding 12/22/01:0527

The temperature data in this sounding look bad after the first value.  The
temperature series is 11.4, 2.6, -14.3, -32.4 in the first 6 seconds of
flight.  I don't know why this occurred, but it obviously is incorrect.
The pressure and RH data look reasonable.

• Dry Bulb Temperature(tdry)
• Dewpoint Temperature(dp)

• Dry Bulb Temperature(tdry)
• Dewpoint Temperature(dp)

SGP/SONDE/C1 - Bad temperature data CF sounding 12/28/01:2326

The temperature data in this sounding are bad from approximately 16 seconds
into the flight.  The temperature series is 9.9, 10.8, 11.3, 1.5, 11.6, 11.6,
11.6, -32.2 and remains below -30 degC.  I don't know why this occurred, but
it clearly is incorrect.  The pressure data looks OK as does the RH, though
the RH data are missing (probably sensor failure) above roughly 3.5 km.

• Dry Bulb Temperature(tdry)
• Dewpoint Temperature(dp)

• Dry Bulb Temperature(tdry)
• Dewpoint Temperature(dp)

SGP/SONDE/C1 - Bad temperature in SGP/CF sounding 20020108:0528

Temperature values in this sounding went from 3.5 degC at the surface to
-33.3 degC at the next sample.  It appears that all the remaining
temperature values have an approximate -35 degC offset.  The pressure
and RH values appear reasonable.

• Dry Bulb Temperature(tdry)
• Dewpoint Temperature(dp)

• Dry Bulb Temperature(tdry)
• Dewpoint Temperature(dp)

SGP/MPL/C1 - Data missing due to hardware failures

The MPL instrument was out of service during the time
range specified due to hardware failures. Data during
this period are missing and unrecoverable.

• base_time
• cloud_base_height_dq_flag
• lat
• Cloud base height(cloud_base_height)
• detector_temp
• laser_temp
• energy_monitor
• alt
• time_offset
• pulse_rep
• Pressure, associated geometric height, at altitude, NGM model output(height)
• shots_summed
• background_signal
• voltage_05
• instrument_temperature
• lon
• filter_temp
• instrument_temp
• Backscatter(backscatter)
• voltage_10
• voltage_15

• Preliminary cloud base height above ground level(cbh)
• lon
• alt
• base_time
• time_offset
• lat

• lon
• Pressure, associated geometric height, at altitude, NGM model output(height)
• range_offset
• laser_scalar_sync_offset
• Preliminary cloud base height above ground level(preliminary_cbh)
• filter_temp
• trigger_freq
• time
• energy_monitor
• transceiver_altitude_angle
• voltage_15
• voltage_10
• pulse_rep
• Backscatter(backscatter)
• laser_sync_offset
• range_bin_time
• laser_temp
• time_offset
• base_time
• scalar_sync_offset
• instrument_temp
• background_signal
• total_counts
• lat
• shots_sum
• range
• voltage_05
• max_altitude
• range_bins
• detector_temp
• shots_summed
• deadtime_correction
• alt
• property
• range_bin_width
• transceiver_azimuth_angle

• background_signal
• energy_monitor
• alt
• Cloud base height(cloud_base_height)
• cloud_top_attenuation_flag
• Backscatter(backscatter)
• lon
• baseline_update_time
• detector_temp
• random_error
• cloud_mask_2
• cloud_mask_1
• cloud top height(cloud_top_height)
• pulse_rep
• time_offset
• shots_summed
• lat
• instrument_temp
• base_time
• Pressure, associated geometric height, at altitude, NGM model output(height)
• laser_temp

• Raw data stream - documentation not supported

• Raw data stream - documentation not supported

SGP/THWAPS/C1 - THWAPS C1 miscalibrated

Power outages apparently led to the THWAPS HMP233 temperature and RH sensor
being replaced at C1.  The power went out at 0340 on 3/9 was restored at
0635 and went out again at 2025.

The new HMP233 appears to be incorrectly calibrated and all temperature
data since its installation are wrong.  If I am correct about the nature
of the calibration problem, the true average temperature can be recovered
from that recorded by a linear conversion, but I don't think its worth the
trouble.

• Pressure, vapor, 60-m height, 30-min intervals(vap_pres)
• Humidity, relative, 30-min intervals, standard deviation(sd_rh)
• Temperature, air, 30-min intervals, standard deviation(sd_temp)
• Temperature, air(temp)
• Humidity, relative(rh)

• Temperature, air, 30-min intervals, standard deviation(sd_temp)
• Humidity, relative, 30-min intervals, standard deviation(sd_rh)
• Humidity, relative(rh)
• Pressure, vapor, 60-m height, 30-min intervals(vap_pres)
• Temperature, air(temp)

SGP/TSI/C1 - sampling rate change

SGP TSI-880 sampling rate changed from 20-second to
30-second at 20020426.001900 UTC (20020425.1819 SGP
CF local time) per ECR-00226 and BCR-00491.

This change brings all ARM TSIs to the same operational
sampling rate.  Daily SGP TSI data volume will decrease
by about 1/3 due to this change.

• count.mask
• base_time
• region.zenith.count.thin
• region.sun.count.thin
• count.thin
• region.zenith.count
• region.sun.count.opaque
• count.sub.horz
• count.opaque
• count.box
• alt
• region.zenith.count.opaque
• Sunshine Meter(sunny)
• count.sky
• solar.altitude
• Cloud amount, thin (percent)(percent.thin)
• count.sub.proczen
• region.sun.count
• region.horizon.count.opaque
• Cloud amount, opaque (percent)(percent.opaque)
• lon
• count.unknown
• time_offset
• solar.azimuth
• sun.strength
• region.horizon.count
• region.horizon.count.thin
• lat

• region.horizon.count.opaque
• solar.altitude
• count.mask
• count.unknown
• region.zenith.count
• count.sub.proczen
• lat
• region.zenith.count.opaque
• count.sky
• region.sun.count.opaque
• count.sub.horz
• Cloud amount, thin (percent)(percent.thin)
• Sunshine Meter(sunny)
• region.sun.count
• count.box
• region.zenith.count.thin
• count.opaque
• region.sun.count.thin
• lon
• solar.azimuth
• region.horizon.count
• region.horizon.count.thin
• alt
• count.thin
• base_time
• Cloud amount, opaque (percent)(percent.opaque)
• sun.strength
• time_offset

SGP/SONDE/C1 - CF sounding 20020522:1130 bad temperature/RH

It appears that the sonde sensor boom was damaged upon launch.  The result
is that no RH data are reported and the reported temperature is something on
the order of 60 degC too low.

• alt
• Dry Bulb Temperature(tdry)
• Dewpoint Temperature(dp)
• Humidity, relative(rh)
• asc

• Dry Bulb Temperature(tdry)
• Dewpoint Temperature(dp)
• alt
• Humidity, relative(rh)
• asc

SGP/SONDE/C1 - Bad T/RH data in CF sounding 20020523:1129

It appears that the sensor boom was damaged shortly after launch.  The
temperature reading jumps -60 degC and the RH goes to 0.

• alt
• Dry Bulb Temperature(tdry)
• Dewpoint Temperature(dp)
• Humidity, relative(rh)
• asc

• Dry Bulb Temperature(tdry)
• Dewpoint Temperature(dp)
• alt
• Humidity, relative(rh)
• asc

SGP/SONDE/C1 - CF sounding 20020609:0229 bad temp/rh/etc

The temperature and RH for this sounding look bad, either because of
interference from another sonde or because the temperature sensor was
broken on launch.  The sounding terminated early in any event.

• alt
• Dry Bulb Temperature(tdry)
• Dewpoint Temperature(dp)
• Humidity, relative(rh)
• asc

• Dry Bulb Temperature(tdry)
• Dewpoint Temperature(dp)
• alt
• Humidity, relative(rh)
• asc

SGP/SONDE/C1 - Incorrect Surface Pressure

It appears that the operator made a typographical error when entering the
surface pressure.  The file has 987.0 hPa and it probably should be 978.0
which would be consistent with the first sample provided by the radiosonde
(977.3 hPa), the surface pressures recorded for the adjacent soundings, and
the THWAPS pressure.

Because the sounding altitude is calculated assuming the surface pressure
is correct, the altitude values for the entire flight and the ascent rate 
values for the first 30 seconds of the sounding will be incorrect.

• alt
• asc

• alt
• asc

SGP/SONDE/C1 - Bad Temperature Sensor

It appears that the temperature sensor broke shortly after launch.  As a
result, the temperature and dewpoint values are incorrect.

• Dry Bulb Temperature(tdry)
• Dewpoint Temperature(dp)
• Humidity, relative(rh)

• Dry Bulb Temperature(tdry)
• Dewpoint Temperature(dp)
• Humidity, relative(rh)

SGP/SONDE/C1 - Temperature sensor failure

Temperature sensor broke at launch.  All temperature-related variables
are incorrect.

• Water vapor, total integrated from radiosonde(integ_vap_sonde)
• integ_vap_sonde_direct

• Dry Bulb Temperature(tdry)
• Dewpoint Temperature(dp)
• Humidity, relative(rh)

• Dry Bulb Temperature(tdry)
• Dewpoint Temperature(dp)
• Humidity, relative(rh)

SGP/AOS/C1 - AOS Computer Failure

The AOS computer started to experience periodic failures caused by an aging and failing 
system disk.  Replacement of the AOS computer's system disk occurred between 2-4 June 2002.

• HGupstream_RH
• Backscattering coefficient at 10 um, from 450 nm TSI Low RH Nephelometer(BluBScatCoef_10um_LRH)
• Particle concentration (2.00 um < Dp < 2.30 um) from PMS PCASP optical particle
  counter, channel 23(pa200_p230conc)
• HGdownstream_T
• Total scattering coefficient at 1 um from 550 nm TSI High RH Nephelometer(GrnTScatCoef_1um_HRH)
• Total scattering coefficient at 1 um from 450 nm TSI High RH Nephelometer(BluTScatCoef_1um_HRH)
• Particle concentration (0.70 um < Dp < 0.80 um) from PMS PCASP optical particle
  counter, channel 15(pa70_p80conc)
• Total scattering coefficient at 10 um from 550 nm TSI High RH Nephelometer(GrnTScatCoef_10um_HRH)
• Total scattering coefficient at 1 um from 550 nm TSI Low RH Nephelometer(GrnTScatCoef_1um_LRH)
• Total scattering coefficient at 10 um from 450 nm TSI High RH Nephelometer(BluTScatCoef_10um_HRH)
• Particle concentration (0.45 um < Dp < 0.50 um) from PMS PCASP optical particle
  counter, channel 12(pa45_p50conc)
• Backscattering coefficient at 530 nm from single wave nephelometer(Bscat530nm)
• Particle concentration from Condensation Particle Counter(CPCPartConc)
• Total scattering coefficient at 10 um from 450 nm TSI Low RH Nephelometer(BluTScatCoef_10um_LRH)
• time
• Absorption coefficient at 1 um(Bap_I_1um)
• Particle concentration (4.00 um < Dp < 5.00 um) from PMS PCASP optical particle
  counter, channel 28(pa400_p500conc)
• Particle concentration (0.60 um < Dp < 0.70 um) from PMS PCASP optical particle
  counter, channel 14(pa60_p70conc)
• Total scattering coefficient at 1 um from 450 nm TSI Low RH Nephelometer(BluTScatCoef_1um_LRH)
• TSINephPres_LRH
• Particle concentration (6.50 um < Dp < 8.00 um) from PMS PCASP optical particle
  counter, channel 30(pa650_p800conc)
• Particle concentration (0.30 um < Dp < 0.35 um) from PMS PCASP optical particle
  counter, channel 9(pa30_p35conc)
• base_time
• HGdownstream_RH
• SampRH
• time_offset
• Total scattering coefficient at 10 um from 550 nm TSI Low RH Nephelometer(GrnTScatCoef_10um_LRH)
• Total scattering coefficient at 1 um from 700 nm TSI High RH Nephelometer(RedTScatCoef_1um_HRH)
• Particle concentration (0.10 um < Dp < 0.12 um) from PMS PCASP optical particle
  counter, channel 1(pa10_p12conc)
• AmbTemp
• HGupstream_T
• Particle concentration (0.40 um < Dp < 0.45 um) from PMS PCASP optical particle
  counter, channel 11(pa40_p45conc)
• Particle concentration (0.12 um < Dp < 0.14 um) from PMS PCASP optical particle
  counter, channel 2(pa12_p14conc)
• alt
• Backscattering coefficient at 10 um from 700 nm TSI High RH Nephelometer(RedBScatCoef_10um_HRH)
• Particle concentration (8.00 um < Dp < 10.00 um) from PMS PCASP optical particle
  counter, channel 31(pa800_p1000conc)
• Backscattering coefficient at 10 um, from 450 nm TSI High RH Nephelometer(BluBScatCoef_10um_HRH)
• Backscattering coefficient at 10 um from 700 nm TSI Low RH Nephelometer(RedBScatCoef_10um_LRH)
• TSINephTin_HRH
• Particle concentration (0.35 um < Dp < 0.40 um) from PMS PCASP optical particle
  counter, channel 10(pa35_p40conc)
• Particle concentration (0.50 um < Dp < 0.60 um) from PMS PCASP optical particle
  counter, channel 13(pa50_p60conc)
• Total scattering coefficient at 1 um from 700 nm TSI Low RH Nephelometer(RedTScatCoef_1um_LRH)
• TSINephTSamp_HRH
• lat
• Pres530nm
• Backscattering coefficient at 1 um from 550 nm TSI Low RH Nephelometer(GrnBScatCoef_1um_LRH)
• RH530nm
• TSINephRHSamp_LRH
• Particle concentration (2.30 um < Dp < 2.60 um) from PMS PCASP optical particle
  counter, channel 24(pa230_p260conc)
• Absorption coefficient at 10 um(Bap_I_10um)
• Particle concentration (3.00 um < Dp < 3.50 um) from PMS PCASP optical particle
  counter, channel 26(pa300_p350conc)
• Backscattering coefficient at 1 um from 550 nm TSI High RH Nephelometer(GrnBScatCoef_1um_HRH)
• lon
• Particle concentration (1.00 um < Dp < 1.30 um) from PMS PCASP optical particle
  counter, channel 18(pa100_p130conc)
• Particle concentration (0.20 um < Dp < 0.23 um) from PMS PCASP optical particle
  counter, channel 6(pa20_p23conc)
• TSINephRHSamp_HRH
• Total scattering coefficient at 10 um from 700 nm TSI Low RH Nephelometer(RedTScatCoef_10um_LRH)
• Particle concentration (1.40 um < Dp < 1.60 um) from PMS PCASP optical particle
  counter, channel 20(pa140_p160conc)
• Particle concentration (0.14 um < Dp < 0.16 um) from PMS PCASP optical particle
  counter, channel 3(pa14_p16conc)
• TSINephTin_LRH
• Particle concentration (1.60 um < Dp < 1.80 um) from PMS PCASP optical particle
  counter, channel 21(pa160_p180conc)
• Particle concentration (3.50 um < Dp < 4.00 um) from PMS PCASP optical particle
  counter, channel 27(pa350_p400conc)
• Particle concentration (0.23 um < Dp < 0.26 um) from PMS PCASP optical particle
  counter, channel 7(pa23_p26conc)
• TSINephTSamp_LRH
• Total scattering coefficient at 10 um from 700 nm TSI High RH Nephelometer(RedTScatCoef_10um_HRH)
• Particle concentration (0.26 um < Dp < 0.30 um) from PMS PCASP optical particle
  counter, channel 8(pa26_p30conc)
• Particle concentration (1.80 um < Dp < 2.00 um) from PMS PCASP optical particle
  counter, channel 22(pa180_p200conc)
• Backscattering coefficient at 10 um from 550 nm TSI High RH Nephelometer(GrnBScatCoef_10um_HRH)
• Backscattering coefficient at 1 um, from 450 nm TSI Low RH Nephelometer(BluBScatCoef_1um_LRH)
• Particle concentration (0.16 um < Dp < 0.18 um) from PMS PCASP optical particle
  counter, channel 4(pa16_p18conc)
• TSINephPres_HRH
• Backscattering coefficient at 1 um from 700 nm TSI High RH Nephelometer(RedBScatCoef_1um_HRH)
• SampTemp
• Neph530Temp
• Ozone concentration(Ozone)
• Particle concentration (Dp > 10 um) from PMS PCASP optical particle counter,
  channel 0(Pa1000Conc)
• Backscattering coefficient at 1 um from 700 nm TSI Low RH Nephelometer(RedBScatCoef_1um_LRH)
• Particle concentration (5.00 um < Dp < 6.50 um) from PMS PCASP optical particle
  counter, channel 29(pa500_p650conc)
• Particle concentration (2.60 um < Dp < 3.00 um) from PMS PCASP optical particle
  counter, channel 25(pa260_p300conc)
• Particle concentration (0.90 um < Dp < 1.00 um) from PMS PCASP optical particle
  counter, channel 17(pa90_p100conc)
• Backscattering coefficient at 10 um from 550 nm TSI Low RH Nephelometer(GrnBScatCoef_10um_LRH)
• Particle concentration (1.30 um < Dp < 1.40 um) from PMS PCASP optical particle
  counter, channel 19(pa130_p140conc)
• Particle concentration (0.18 um < Dp < 0.20 um) from PMS PCASP optical particle
  counter, channel 5(pa18_p20conc)
• Backscattering coefficient at 1 um, from 450 nm TSI High RH Nephelometer(BluBScatCoef_1um_HRH)
• Particle concentration (0.80 um < Dp < 0.90 um) from PMS PCASP optical particle
  counter, channel 16(pa80_p90conc)

• RedTScatZero_HRH
• O3_Span
• BapFlow
• Line4Vac
• BluTScatZero_HRH
• BluRScatZero_HRH
• Line11Temp
• O3_LinTemp
• Line11Heater
• RedRScatZero_HRH
• Line6Vac
• GrnRScatZero_LRH
• RedTScatSpn_LRH
• RedTScatZero_LRH
• GrnTScatSpn_HRH
• RedBScatZero_HRH
• TSINephLV_LRH
• BluRScatZero_LRH
• Line8DeltaP
• BluBScatSpn_HRH
• O3_LinHeater
• GrnTScatZero_HRH
• OPCSheath
• RedBScatZero_LRH
• BluTScatSpn_HRH
• alt
• CabinetTemp
• MainAirFlow
• time_offset
• RoomTemp
• OPCLaserVolt
• BluTScatZero_LRH
• Line8Flow
• GrnRScatZero_HRH
• Line3Vac
• TSINephLV_HRH
• base_time
• GrnTScatZero_LRH
• BapFiltr
• WatAmbT
• RedRScatZero_LRH
• O3_SetPt
• BapSignal
• GrnBScatZero_HRH
• RedTScatSpn_HRH
• RedBScatSpn_HRH
• GrnBScatZero_LRH
• O3_Samp
• O3_Cont
• OPCFlow
• BluBScatZero_LRH
• Cab_4_5_Temp
• GrnBScatSpn_HRH
• BapRef
• CPCSaturT
• Line11RH
• O3_Zro
• Calib530nm
• Line8Temp
• RedBScatSpn_LRH
• CPCCondT
• GrnBScatSpn_LRH
• Line5Vac
• O3_Temp
• TSINephLC_HRH
• Zero530nm
• lon
• O3_Press
• TSINephLC_LRH
• time
• O3_Offset
• lat
• O3_Mode
• BluBScatZero_HRH
• GrnTScatSpn_LRH
• O3_Spn
• ZeroAirFlow
• TSISensGrn_LRH
• Line6DeltaP
• TSISensGrn_HRH
• BluBScatSpn_LRH
• CPCDeltT
• BluTScatSpn_LRH

SGP/SONDE/C1 - Bad Temperature Sensor

It appears that the temperature sensor broke upon launch and therefore the reported 
temperature is approximately 40 degC too low.

• Humidity, relative(rh)
• Dry Bulb Temperature(tdry)

• Water vapor, total integrated from radiosonde(integ_vap_sonde)

• Dry Bulb Temperature(tdry)
• Dewpoint Temperature(dp)
• Humidity, relative(rh)

• Dry Bulb Temperature(tdry)
• Dewpoint Temperature(dp)
• Humidity, relative(rh)

SGP/SONDE/C1 - Bad Temperature Sensor

It appears that the temperature sensor broke shortly after launch. Temperatures are offset 
by approxmiately (but not constantly) 40 degC.

• Humidity, relative(rh)
• Dry Bulb Temperature(tdry)

• Water vapor, total integrated from radiosonde(integ_vap_sonde)

• Dry Bulb Temperature(tdry)
• Dewpoint Temperature(dp)
• Humidity, relative(rh)

• Dry Bulb Temperature(tdry)
• Dewpoint Temperature(dp)
• Humidity, relative(rh)

Bad temperature sensor

It appears that the temperture sensor broke a few seconds into flight.  This results in an 
unreasonably low temperature for the rest of the flight.  For some reason, the rh values 
also go missing shortly after launch.  Only the wind and pressure data are reliable.

• Humidity, relative(rh)
• Dry Bulb Temperature(tdry)
• alt

• Dewpoint Temperature(dp)
• Dry Bulb Temperature(tdry)
• asc
• alt
• Humidity, relative(rh)

• Dewpoint Temperature(dp)
• Humidity, relative(rh)
• asc
• Dry Bulb Temperature(tdry)
• alt

SGP/AOS/C1 - Ozone instrument out of service

The ice storm of 30-31 January, 2002 shut down the AOS for ~2 weeks.  A controlled 
power-up of the system found a problem with the ozone monitor.  Smoke was observed to come from 
the ozone instrument, at which time it was shut down.

The ozone monitor was removed from the AOS for remote troubleshooting. The cause of the 
smoke was identified as being from underneath a printed circuit board.  At that point, Site 
Ops staff were requested to send the unit to Boulder for additional troubleshooting.  
NOAA staff received the unit on 20 February 2002.

After a brief inspection, the cause of the smoking was discovered.  A one-half inch hole 
was burned completely through the motherboard.  The determination was made that this could 
not be repaired at the NOAA facility, and a purchase order was initiated to return the 
unit to Dasibi, Inc. (the manufacturer), for repair/replacement of the motherboard.

On 4 March, 2002, NOAA personnel received the OK from ARM to return the instrument to 
Dasibi, Inc. for service.  Dasibi, Inc., received the unit on or around 8 March, 2002.  The 
manufacturer was to test the unit, repair or replace the damaged motherboard, and 
calibrate the unit according to the NIST standard protocol.

On 8 May, 2002, NOAA personnel emailed SGP Site Ops personnel and asked them to check on 
the status of the repair, which was taking longer then expected.   Upon trying to contact 
the manufacturer, it was discovered that they went out of business.  The return of 
instruments from the manufacturer to customers was being handled by a contract company.  The 
ozone monitor arrived back in Boulder, in an unrepaired state, on or about 1 July 2002.

Since there were few other options, NOAA personnel undertook the difficult task of 
repairing the motherboard.  This required the re-routing of several electrical conduits from the 
burned area in the multilayer board to other acceptable places on the board.  This took 
a considerable amount of electronics technician time and effort.  After the motherboard 
was repaired, extensive testing was required to verify that the repair was done 
successfully and that other problems were not caused in the unit by the board burning..

The repair was deemed successful on 24 September, 2002.  The unit was shipped back to the 
SGP site immediately thereafter.  It was installed during a NOAA AOS maintenance visit on 
1 October, 2002.

• Ozone concentration(Ozone)

• O3_Span
• O3_SetPt
• O3_Cont
• O3_Press
• O3_LinHeater
• O3_Offset
• O3_Mode
• O3_LinTemp
• O3_Temp
• O3_Spn
• O3_Samp
• O3_Zro

SGP/SONDE/C1 - Questionable RH: CF sounding 11/13/2002:2044

The RH data in this sounding is erratic between 2km and 10 km, oscillating between 
reasonable values (~40%RH) and zero.  I certainly doubt that this is a real, heretofore 
unreported, atmospheric phenomenon so I have to conclude that something is probably wrong with 
the sensor.  I have not seen this behavior before.  One would have to look at the 
absolutely raw RH data to explore further.

• Dewpoint Temperature(dp)
• Humidity, relative(rh)

• Dewpoint Temperature(dp)
• Humidity, relative(rh)

SGP/SONDE/C1 - Contaminated by interference

These three soundings are contaminated by interference from another radiosonde.  It is not 
clear why; this doesn't usually happen at the CF where the operators are very 
experienced and frequency separation is not usually a problem.

• Raw data stream - documentation not supported

• Dewpoint Temperature(dp)
• asc
• Pressure, atmospheric, constant value of model level, RUC model output(pres)
• Eastward Wind Component(u_wind)
• Dry Bulb Temperature(tdry)
• lon
• Mean Wind Speed(wspd)
• base_time
• Wind Direction(deg)
• Northward Wind Component(v_wind)
• time_offset
• lat
• alt
• wstat
• Humidity, relative(rh)

• lon
• Wind Direction(deg)
• Dewpoint Temperature(dp)
• wstat
• Humidity, relative(rh)
• Mean Wind Speed(wspd)
• asc
• Northward Wind Component(v_wind)
• alt
• lat
• base_time
• Eastward Wind Component(u_wind)
• time_offset
• Dry Bulb Temperature(tdry)
• Pressure, atmospheric, constant value of model level, RUC model output(pres)

SGP/SONDE/C1 - Interference CF sounding 20021120:0225

Like several soundings on 11/19, this sounding was affected by interference from another 
radiosonde.

• Raw data stream - documentation not supported

• Dewpoint Temperature(dp)
• asc
• Pressure, atmospheric, constant value of model level, RUC model output(pres)
• Eastward Wind Component(u_wind)
• Dry Bulb Temperature(tdry)
• lon
• Mean Wind Speed(wspd)
• base_time
• Wind Direction(deg)
• Northward Wind Component(v_wind)
• time_offset
• lat
• alt
• wstat
• Humidity, relative(rh)

• lon
• Wind Direction(deg)
• Dewpoint Temperature(dp)
• wstat
• Humidity, relative(rh)
• Mean Wind Speed(wspd)
• asc
• Northward Wind Component(v_wind)
• alt
• lat
• base_time
• Eastward Wind Component(u_wind)
• time_offset
• Dry Bulb Temperature(tdry)
• Pressure, atmospheric, constant value of model level, RUC model output(pres)

SGP/SONDE/C1 - Questionable RH CF sounding 0211211:1130

The RH samples in this sounding oscillate between reasonable values (60-80%) and zero.  
This may be a problem with the RH sensor or the software that alternates between the heated 
and non-heated RH elements.  In either case, the reported values are questionable.  More 
investigation of the raw binary data would be required to diagnose further.

• Dewpoint Temperature(dp)
• Humidity, relative(rh)

• Dewpoint Temperature(dp)
• Humidity, relative(rh)

SGP/SONDE/C1 - Bad RH Data

The RH values during the first 15 minutes of this sounding oscillate between reasonable 
values and near-zero values.  The oscillation is irregular and seems to be related to 
failure of the RH sensor heating process.  I have informed Vaisala of the problem and provided 
raw data files to them for analysis.

• Dewpoint Temperature(dp)
• Humidity, relative(rh)

• Dewpoint Temperature(dp)
• Humidity, relative(rh)

SGP/SONDE/C1 - Broken temperature sensor SGP/CF sounding

The radiosonde temperature sensor apparently broke during launch.  This results in bad 
temperature, dew point, and rh data.

• Dry Bulb Temperature(tdry)
• Dewpoint Temperature(dp)
• Humidity, relative(rh)

• Dry Bulb Temperature(tdry)
• Dewpoint Temperature(dp)
• Humidity, relative(rh)

SGP/TSI/C1 - Metadata Errors in NetCDF Header

The value of "sample_int" reported in the netCDF header is
incorrect.  The correct sampling interval is 30 seconds.

The maximum values for the variable "sunny" is incorrect.  
It should be 1, not 100 as documented in the netCDF header. 
Users should disregard the "qc_sunny" flag during this
period of time and apply their own qc check if desired.

The minimum value for the variable "solar.altitude" is
incorrect. It should be -90, not 10 as documented in the
netCDF header.  Users should disregard the "qc_solar.altitude"
flag during this period of time and apply their own qc check
if desired.

• time_offset

• Sunshine Meter(sunny)
• solar.altitude
• time_offset

SGP/SONDE/C1 - Bad temperature/RH

The temperature sensor broke shortly after launch.  All temperature and RH-related data 
are incorrect.

• Dry Bulb Temperature(tdry)
• Dewpoint Temperature(dp)
• Humidity, relative(rh)

• Dry Bulb Temperature(tdry)
• Dewpoint Temperature(dp)
• Humidity, relative(rh)

SGP/AOS/C1  - Data missing

The UPS supplying power to the AOS computer failed on Friday, 12/27/2002.  The UPS was 
repaired on Monday 12/30/2002, but the AOS computer was locked up and would not reboot.  
Telephone communication was established with Richard Eagan, ANL, who was able to do a remote 
reboot of the computer using his account.

• HGupstream_RH
• Backscattering coefficient at 10 um, from 450 nm TSI Low RH Nephelometer(BluBScatCoef_10um_LRH)
• Particle concentration (2.00 um < Dp < 2.30 um) from PMS PCASP optical particle
  counter, channel 23(pa200_p230conc)
• HGdownstream_T
• Total scattering coefficient at 1 um from 550 nm TSI High RH Nephelometer(GrnTScatCoef_1um_HRH)
• Total scattering coefficient at 1 um from 450 nm TSI High RH Nephelometer(BluTScatCoef_1um_HRH)
• Particle concentration (0.70 um < Dp < 0.80 um) from PMS PCASP optical particle
  counter, channel 15(pa70_p80conc)
• Total scattering coefficient at 10 um from 550 nm TSI High RH Nephelometer(GrnTScatCoef_10um_HRH)
• Total scattering coefficient at 1 um from 550 nm TSI Low RH Nephelometer(GrnTScatCoef_1um_LRH)
• Total scattering coefficient at 10 um from 450 nm TSI High RH Nephelometer(BluTScatCoef_10um_HRH)
• Particle concentration (0.45 um < Dp < 0.50 um) from PMS PCASP optical particle
  counter, channel 12(pa45_p50conc)
• Backscattering coefficient at 530 nm from single wave nephelometer(Bscat530nm)
• Particle concentration from Condensation Particle Counter(CPCPartConc)
• Total scattering coefficient at 10 um from 450 nm TSI Low RH Nephelometer(BluTScatCoef_10um_LRH)
• time
• Absorption coefficient at 1 um(Bap_I_1um)
• Particle concentration (4.00 um < Dp < 5.00 um) from PMS PCASP optical particle
  counter, channel 28(pa400_p500conc)
• Particle concentration (0.60 um < Dp < 0.70 um) from PMS PCASP optical particle
  counter, channel 14(pa60_p70conc)
• Total scattering coefficient at 1 um from 450 nm TSI Low RH Nephelometer(BluTScatCoef_1um_LRH)
• TSINephPres_LRH
• Particle concentration (6.50 um < Dp < 8.00 um) from PMS PCASP optical particle
  counter, channel 30(pa650_p800conc)
• Particle concentration (0.30 um < Dp < 0.35 um) from PMS PCASP optical particle
  counter, channel 9(pa30_p35conc)
• base_time
• HGdownstream_RH
• SampRH
• time_offset
• Total scattering coefficient at 10 um from 550 nm TSI Low RH Nephelometer(GrnTScatCoef_10um_LRH)
• Total scattering coefficient at 1 um from 700 nm TSI High RH Nephelometer(RedTScatCoef_1um_HRH)
• Particle concentration (0.10 um < Dp < 0.12 um) from PMS PCASP optical particle
  counter, channel 1(pa10_p12conc)
• AmbTemp
• HGupstream_T
• Particle concentration (0.40 um < Dp < 0.45 um) from PMS PCASP optical particle
  counter, channel 11(pa40_p45conc)
• Particle concentration (0.12 um < Dp < 0.14 um) from PMS PCASP optical particle
  counter, channel 2(pa12_p14conc)
• alt
• Backscattering coefficient at 10 um from 700 nm TSI High RH Nephelometer(RedBScatCoef_10um_HRH)
• Particle concentration (8.00 um < Dp < 10.00 um) from PMS PCASP optical particle
  counter, channel 31(pa800_p1000conc)
• Backscattering coefficient at 10 um, from 450 nm TSI High RH Nephelometer(BluBScatCoef_10um_HRH)
• Backscattering coefficient at 10 um from 700 nm TSI Low RH Nephelometer(RedBScatCoef_10um_LRH)
• TSINephTin_HRH
• Particle concentration (0.35 um < Dp < 0.40 um) from PMS PCASP optical particle
  counter, channel 10(pa35_p40conc)
• Particle concentration (0.50 um < Dp < 0.60 um) from PMS PCASP optical particle
  counter, channel 13(pa50_p60conc)
• Total scattering coefficient at 1 um from 700 nm TSI Low RH Nephelometer(RedTScatCoef_1um_LRH)
• TSINephTSamp_HRH
• lat
• Pres530nm
• Backscattering coefficient at 1 um from 550 nm TSI Low RH Nephelometer(GrnBScatCoef_1um_LRH)
• RH530nm
• TSINephRHSamp_LRH
• Particle concentration (2.30 um < Dp < 2.60 um) from PMS PCASP optical particle
  counter, channel 24(pa230_p260conc)
• Absorption coefficient at 10 um(Bap_I_10um)
• Particle concentration (3.00 um < Dp < 3.50 um) from PMS PCASP optical particle
  counter, channel 26(pa300_p350conc)
• Backscattering coefficient at 1 um from 550 nm TSI High RH Nephelometer(GrnBScatCoef_1um_HRH)
• lon
• Particle concentration (1.00 um < Dp < 1.30 um) from PMS PCASP optical particle
  counter, channel 18(pa100_p130conc)
• Particle concentration (0.20 um < Dp < 0.23 um) from PMS PCASP optical particle
  counter, channel 6(pa20_p23conc)
• TSINephRHSamp_HRH
• Total scattering coefficient at 10 um from 700 nm TSI Low RH Nephelometer(RedTScatCoef_10um_LRH)
• Particle concentration (1.40 um < Dp < 1.60 um) from PMS PCASP optical particle
  counter, channel 20(pa140_p160conc)
• Particle concentration (0.14 um < Dp < 0.16 um) from PMS PCASP optical particle
  counter, channel 3(pa14_p16conc)
• TSINephTin_LRH
• Particle concentration (1.60 um < Dp < 1.80 um) from PMS PCASP optical particle
  counter, channel 21(pa160_p180conc)
• Particle concentration (3.50 um < Dp < 4.00 um) from PMS PCASP optical particle
  counter, channel 27(pa350_p400conc)
• Particle concentration (0.23 um < Dp < 0.26 um) from PMS PCASP optical particle
  counter, channel 7(pa23_p26conc)
• TSINephTSamp_LRH
• Total scattering coefficient at 10 um from 700 nm TSI High RH Nephelometer(RedTScatCoef_10um_HRH)
• Particle concentration (0.26 um < Dp < 0.30 um) from PMS PCASP optical particle
  counter, channel 8(pa26_p30conc)
• Particle concentration (1.80 um < Dp < 2.00 um) from PMS PCASP optical particle
  counter, channel 22(pa180_p200conc)
• Backscattering coefficient at 10 um from 550 nm TSI High RH Nephelometer(GrnBScatCoef_10um_HRH)
• Backscattering coefficient at 1 um, from 450 nm TSI Low RH Nephelometer(BluBScatCoef_1um_LRH)
• Particle concentration (0.16 um < Dp < 0.18 um) from PMS PCASP optical particle
  counter, channel 4(pa16_p18conc)
• TSINephPres_HRH
• Backscattering coefficient at 1 um from 700 nm TSI High RH Nephelometer(RedBScatCoef_1um_HRH)
• SampTemp
• Neph530Temp
• Ozone concentration(Ozone)
• Particle concentration (Dp > 10 um) from PMS PCASP optical particle counter,
  channel 0(Pa1000Conc)
• Backscattering coefficient at 1 um from 700 nm TSI Low RH Nephelometer(RedBScatCoef_1um_LRH)
• Particle concentration (5.00 um < Dp < 6.50 um) from PMS PCASP optical particle
  counter, channel 29(pa500_p650conc)
• Particle concentration (2.60 um < Dp < 3.00 um) from PMS PCASP optical particle
  counter, channel 25(pa260_p300conc)
• Particle concentration (0.90 um < Dp < 1.00 um) from PMS PCASP optical particle
  counter, channel 17(pa90_p100conc)
• Backscattering coefficient at 10 um from 550 nm TSI Low RH Nephelometer(GrnBScatCoef_10um_LRH)
• Particle concentration (1.30 um < Dp < 1.40 um) from PMS PCASP optical particle
  counter, channel 19(pa130_p140conc)
• Particle concentration (0.18 um < Dp < 0.20 um) from PMS PCASP optical particle
  counter, channel 5(pa18_p20conc)
• Backscattering coefficient at 1 um, from 450 nm TSI High RH Nephelometer(BluBScatCoef_1um_HRH)
• Particle concentration (0.80 um < Dp < 0.90 um) from PMS PCASP optical particle
  counter, channel 16(pa80_p90conc)

• RedTScatZero_HRH
• O3_Span
• BapFlow
• Line4Vac
• BluTScatZero_HRH
• BluRScatZero_HRH
• Line11Temp
• O3_LinTemp
• Line11Heater
• RedRScatZero_HRH
• Line6Vac
• GrnRScatZero_LRH
• RedTScatSpn_LRH
• RedTScatZero_LRH
• GrnTScatSpn_HRH
• RedBScatZero_HRH
• TSINephLV_LRH
• BluRScatZero_LRH
• Line8DeltaP
• BluBScatSpn_HRH
• O3_LinHeater
• GrnTScatZero_HRH
• OPCSheath
• RedBScatZero_LRH
• BluTScatSpn_HRH
• alt
• CabinetTemp
• MainAirFlow
• time_offset
• RoomTemp
• OPCLaserVolt
• BluTScatZero_LRH
• Line8Flow
• GrnRScatZero_HRH
• Line3Vac
• TSINephLV_HRH
• base_time
• GrnTScatZero_LRH
• BapFiltr
• WatAmbT
• RedRScatZero_LRH
• O3_SetPt
• BapSignal
• GrnBScatZero_HRH
• RedTScatSpn_HRH
• RedBScatSpn_HRH
• GrnBScatZero_LRH
• O3_Samp
• O3_Cont
• OPCFlow
• BluBScatZero_LRH
• Cab_4_5_Temp
• GrnBScatSpn_HRH
• BapRef
• CPCSaturT
• Line11RH
• O3_Zro
• Calib530nm
• Line8Temp
• RedBScatSpn_LRH
• CPCCondT
• GrnBScatSpn_LRH
• Line5Vac
• O3_Temp
• TSINephLC_HRH
• Zero530nm
• lon
• O3_Press
• TSINephLC_LRH
• time
• O3_Offset
• lat
• O3_Mode
• BluBScatZero_HRH
• GrnTScatSpn_LRH
• O3_Spn
• ZeroAirFlow
• TSISensGrn_LRH
• Line6DeltaP
• TSISensGrn_HRH
• BluBScatSpn_LRH
• CPCDeltT
• BluTScatSpn_LRH

• Raw data stream - documentation not supported

SGP/Sonde/C1 - Bad temperature, RH

These three soundings all show the effects of a temperature sensor broken at launch.  The 
temperature, RH, dew-point values all are incorrect.

• Dry Bulb Temperature(tdry)
• Dewpoint Temperature(dp)
• Humidity, relative(rh)

• Dry Bulb Temperature(tdry)
• Dewpoint Temperature(dp)
• Humidity, relative(rh)

SGP/Sonde/C1 - Bad RH in sounding

The RH sensor heating circuit was out of synch from about 400 sec after launch until the 
circuit was turned off whent he sounding temperature reached approximately 233 degK (-40 
degC) about 1500 sec after launch.  During this time period the reported RH oscillates 
between reasonable values and near-zero values.

• Dewpoint Temperature(dp)
• Humidity, relative(rh)

• Dewpoint Temperature(dp)
• Humidity, relative(rh)

SGP/Sonde/C1 - Sondes launched an hour early

It looks like someone forgot to set his/her clock ahead.  The sounding that should have 
been done at 23:30 UTC on 4/6 was done at 22:38 and the following sounding, which should 
have been done at 0530 on 4/7 was done at 04:31.  The subsequent soundings all are done at 
the correct times.

• Raw data stream - documentation not supported

• Dewpoint Temperature(dp)
• asc
• Pressure, atmospheric, constant value of model level, RUC model output(pres)
• Eastward Wind Component(u_wind)
• Dry Bulb Temperature(tdry)
• lon
• Mean Wind Speed(wspd)
• base_time
• Wind Direction(deg)
• Northward Wind Component(v_wind)
• time_offset
• lat
• alt
• wstat
• Humidity, relative(rh)

• lon
• Wind Direction(deg)
• Dewpoint Temperature(dp)
• wstat
• Humidity, relative(rh)
• Mean Wind Speed(wspd)
• asc
• Northward Wind Component(v_wind)
• alt
• lat
• base_time
• Eastward Wind Component(u_wind)
• time_offset
• Dry Bulb Temperature(tdry)
• Pressure, atmospheric, constant value of model level, RUC model output(pres)

SGP/Sonde/C1 - Incorrect surface temperature on CF sounding

It appears that the operator entered an incorrect value for surface temperature.  Rather 
than 43.2 degC in the file, the value is most likely 19. degC (thwaps reading 19.4, first 
sonde reading aloft 18.6).

• Dry Bulb Temperature(tdry)

• Dry Bulb Temperature(tdry)

SGP/Sonde/C1 - Failed Sonde Launches due to Antenna problems

These sonde launches where unsuccessful due to problems
with the antenna configuration resulting in signal loss
before the launch.

• Humidity, relative(rh)
• lat
• Pressure, atmospheric, constant value of model level, RUC model output(pres)
• Dry Bulb Temperature(tdry)
• alt
• time_offset
• lon
• base_time

• Raw data stream - documentation not supported

• Dewpoint Temperature(dp)
• asc
• Pressure, atmospheric, constant value of model level, RUC model output(pres)
• Eastward Wind Component(u_wind)
• Dry Bulb Temperature(tdry)
• lon
• Mean Wind Speed(wspd)
• base_time
• Wind Direction(deg)
• Northward Wind Component(v_wind)
• time_offset
• lat
• alt
• wstat
• Humidity, relative(rh)

• lon
• Dewpoint Temperature(dp)
• Wind Direction(deg)
• wstat
• Humidity, relative(rh)
• Mean Wind Speed(wspd)
• asc
• Northward Wind Component(v_wind)
• alt
• lat
• base_time
• Eastward Wind Component(u_wind)
• time_offset
• Dry Bulb Temperature(tdry)
• Pressure, atmospheric, constant value of model level, RUC model output(pres)

SGP/SONDE/C1 - Broken Temperature Sensor

The temperature sensor broke shortly after launch as a result all variables that are 
affected by temperature are incorrect.

• Dry Bulb Temperature(tdry)
• Dewpoint Temperature(dp)
• Humidity, relative(rh)

• Dry Bulb Temperature(tdry)
• Dewpoint Temperature(dp)
• Humidity, relative(rh)

SGP/SONDE/C1 - Broken temperature sensor

The temperature sensor on this radiosonde broke after launch.  All temperature-related 
variables (dp, tdry, rh) are incorrect.

• Dry Bulb Temperature(tdry)
• Dewpoint Temperature(dp)
• Humidity, relative(rh)

• Dry Bulb Temperature(tdry)
• Dewpoint Temperature(dp)
• Humidity, relative(rh)

SGP/SONDE/C1 - Broken temperature sensors

The temperature sensors broke at launch on both of these soundings.  All of the 
temperature-related data (tdry, rh, dp) are incorrect.

• Dry Bulb Temperature(tdry)
• Dewpoint Temperature(dp)
• Humidity, relative(rh)

• Dry Bulb Temperature(tdry)
• Dewpoint Temperature(dp)
• Humidity, relative(rh)

SGP/SONDE/C1 - Broken temperature sensor

The temperature sensor broke at launch on this sounding.  All of the temperature-related 
data (tdry, rh, dp) are incorrect.

• Dry Bulb Temperature(tdry)
• Dewpoint Temperature(dp)
• Humidity, relative(rh)

• Dry Bulb Temperature(tdry)
• Dewpoint Temperature(dp)
• Humidity, relative(rh)

SGP/SONDE/C1 - Incorrect surface RH value.

The surface RH value, reported as 0%RH should be 52%.  This resulted from a typographical 
error by the operator when entering the surface data.

• Dewpoint Temperature(dp)
• Humidity, relative(rh)

• Dewpoint Temperature(dp)
• Humidity, relative(rh)

SGP/SONDE/C1 - Broken temperature sensor

The temperature sensor broke at launch on this sounding.  All of the temperature-related 
data (tdry, rh, dp) are incorrect.

• Dry Bulb Temperature(tdry)
• Dewpoint Temperature(dp)
• Humidity, relative(rh)

• Dry Bulb Temperature(tdry)
• Dewpoint Temperature(dp)
• Humidity, relative(rh)

SGP/SONDE/C1 - A few bad temperature values at the beginning of the sounding

I've never seen this before.  The temperature reported by the radiosonde dropped over 30 
degC just after launch (usually a symptom of a broken temperature sensor), but then 
recovered after 14 seconds of bad readings.  The temperatures from 2 seconds through 14 seconds 
after launch are incorrect, the remainder of the sounding looks fine.  I have sent the 
data files to Vaisala for their consideration.

• Dry Bulb Temperature(tdry)
• Dewpoint Temperature(dp)

• Dry Bulb Temperature(tdry)
• Dewpoint Temperature(dp)

SGP/THWAPS/B1/B5/B6/C1 - Missing data due to Ice storm and clock problems

Data are missing due to power failures caused by an ice storm
and resulting system/instrument clock problems.

• alt
• Mean Wind Speed(wspd)
• lon
• base_time
• Humidity, relative, 30-min intervals, standard deviation(sd_rh)
• Temperature, air(temp)
• Unit Vector Wind Direction(wdir)
• time_offset
• sd_vap_pres
• sd_wdir
• Pressure, atmospheric, constant value of model level, RUC model output(pres)
• sd_pres
• Humidity, relative(rh)
• vbat
• Temperature, air, 30-min intervals, standard deviation(sd_temp)
• Pressure, vapor, 60-m height, 30-min intervals(vap_pres)
• lat

• Raw data stream - documentation not supported

• Temperature, air, 30-min intervals, standard deviation(sd_temp)
• Temperature, air(temp)
• sd_vap_pres
• vbat
• lon
• alt
• time_offset
• Humidity, relative(rh)
• base_time
• sd_wdir
• Pressure, vapor, 60-m height, 30-min intervals(vap_pres)
• sd_pres
• Unit Vector Wind Direction(wdir)
• Humidity, relative, 30-min intervals, standard deviation(sd_rh)
• lat
• Mean Wind Speed(wspd)
• Pressure, atmospheric, constant value of model level, RUC model output(pres)

• sd_wdir
• sd_pres
• Mean Wind Speed(wspd)
• base_time
• lon
• Humidity, relative, 30-min intervals, standard deviation(sd_rh)
• vbat
• Temperature, air(temp)
• Unit Vector Wind Direction(wdir)
• Pressure, atmospheric, constant value of model level, RUC model output(pres)
• Pressure, vapor, 60-m height, 30-min intervals(vap_pres)
• sd_vap_pres
• Temperature, air, 30-min intervals, standard deviation(sd_temp)
• Humidity, relative(rh)
• lat
• time_offset
• alt

• Raw data stream - documentation not supported

• Humidity, relative(rh)
• base_time
• sd_pres
• Humidity, relative, 30-min intervals, standard deviation(sd_rh)
• vbat
• Temperature, air, 30-min intervals, standard deviation(sd_temp)
• sd_wdir
• Unit Vector Wind Direction(wdir)
• lon
• Mean Wind Speed(wspd)
• Pressure, vapor, 60-m height, 30-min intervals(vap_pres)
• Pressure, atmospheric, constant value of model level, RUC model output(pres)
• Temperature, air(temp)
• time_offset
• alt
• sd_vap_pres
• lat

• Raw data stream - documentation not supported

• Mean Wind Speed(wspd)
• Pressure, vapor, 60-m height, 30-min intervals(vap_pres)
• Pressure, atmospheric, constant value of model level, RUC model output(pres)
• sd_vap_pres
• lat
• Humidity, relative(rh)
• Unit Vector Wind Direction(wdir)
• Temperature, air(temp)
• time_offset
• Temperature, air, 30-min intervals, standard deviation(sd_temp)
• lon
• Humidity, relative, 30-min intervals, standard deviation(sd_rh)
• sd_wdir
• vbat
• alt
• base_time
• sd_pres

• sd_wdir
• lat
• Pressure, vapor, 60-m height, 30-min intervals(vap_pres)
• base_time
• Humidity, relative(rh)
• Pressure, atmospheric, constant value of model level, RUC model output(pres)
• Temperature, air, 30-min intervals, standard deviation(sd_temp)
• time_offset
• Temperature, air(temp)
• sd_pres
• lon
• vbat
• sd_vap_pres
• Unit Vector Wind Direction(wdir)
• alt
• Humidity, relative, 30-min intervals, standard deviation(sd_rh)
• Mean Wind Speed(wspd)

• Raw data stream - documentation not supported

• lon
• Mean Wind Speed(wspd)
• lat
• Unit Vector Wind Direction(wdir)
• Humidity, relative(rh)
• Humidity, relative, 30-min intervals, standard deviation(sd_rh)
• base_time
• sd_pres
• vbat
• time_offset
• alt
• sd_vap_pres
• Temperature, air(temp)
• Pressure, vapor, 60-m height, 30-min intervals(vap_pres)
• sd_wdir
• Pressure, atmospheric, constant value of model level, RUC model output(pres)
• Temperature, air, 30-min intervals, standard deviation(sd_temp)

• lon
• sd_pres
• vbat
• sd_vap_pres
• Humidity, relative(rh)
• Unit Vector Wind Direction(wdir)
• time_offset
• Temperature, air, 30-min intervals, standard deviation(sd_temp)
• Humidity, relative, 30-min intervals, standard deviation(sd_rh)
• alt
• Pressure, atmospheric, constant value of model level, RUC model output(pres)
• lat
• Pressure, vapor, 60-m height, 30-min intervals(vap_pres)
• Temperature, air(temp)
• sd_wdir
• base_time
• Mean Wind Speed(wspd)

SGP/SONDE/C1 - Broken temperature sensor

The temperature sensor broke at launch on this sounding.  All of the temperature-related 
data (tdry, rh, dp) are incorrect.

• Dry Bulb Temperature(tdry)
• Dewpoint Temperature(dp)
• Humidity, relative(rh)

SGP/TSI/C1 - Shadowband misaligned

The shadowband and mask were initially misaligned after the re-installation of the TSI.

• Cloud decision images, Total Sky Imager, PNG format(png)

• JPEG data stream - documentation not yet available

• Raw data stream - documentation not supported

• region.zenith.count.thin
• region.sun.count.thin
• Cloud amount, thin (percent)(percent.thin)
• region.sun.count
• region.zenith.count
• region.sun.count.opaque
• region.horizon.count.opaque
• Cloud amount, opaque (percent)(percent.opaque)
• region.horizon.count
• region.zenith.count.opaque
• region.horizon.count.thin

• region.horizon.count.opaque
• count.mask
• region.zenith.count.thin
• count.unknown
• region.zenith.count
• count.sub.proczen
• region.zenith.count.opaque
• count.sky
• count.opaque
• region.sun.count.opaque
• region.sun.count.thin
• region.horizon.count
• region.horizon.count.thin
• count.sub.horz
• Cloud amount, thin (percent)(percent.thin)
• count.thin
• region.sun.count
• Cloud amount, opaque (percent)(percent.opaque)
• count.box

SGP/SONDE/C1 - Bad RH Data

The RH values during the first half of this sounding oscillate between reasonable values 
and near-zero values.  The oscillation is irregular and seems to be related to failure of 
the RH sensor heating process.

• Dewpoint Temperature(dp)
• Humidity, relative(rh)

SGP/AOS/C1 - Ozone Instrument removed for repair

The ozone instrument was removed for calibration on 2003 11/21.  It was shipped to Boulder 
and was cleaned and calibrated.  It was sent back to SGP on 2003 12/02, but was damaged 
in transit by FedEx.  The instrument was reinstalled on 2003 12/03 but was found to be 
defective.  Large spikes were observed in the data.  Afetr a few days the instrument was 
removed and shipped to a vendor for repair.  The ozone monitor was returned to service 
after repair at 2004 01/27 (2208 GMT).

• Ozone concentration(Ozone)

• O3_Span
• O3_SetPt
• O3_Cont
• O3_Press
• O3_LinHeater
• O3_Offset
• O3_Mode
• O3_LinTemp
• O3_Temp
• O3_Spn
• O3_Samp
• O3_Zro

SGP/SONDE/C1 - Bad RH Data

The RH values during the first part of this sounding oscillate between reasonable values 
and near-zero values.  The oscillation seems to be related to failure of the RH sensor 
heating process.

• Dewpoint Temperature(dp)
• Humidity, relative(rh)

SGP/SONDE/C1 - Surface pressure incorrect

I think the operator inadvdertently transposed to digits when entering the surface 
pressure value.  The value entered is 987.0 hPa but the value shown in the raw data file at 
launch is 978.0.  As a result, the absolute altitudes in this sounding will be slightly 
incorrect as will be the ascent rate during the first 30 seconds of flight.

• alt
• asc

SGP/SONDE/C1 - Broken temperature sensor

The temperature sensor broke at launch on this sounding.  All of the temperature-related 
data (tdry, rh, dp) are incorrect.

• Dry Bulb Temperature(tdry)
• Dewpoint Temperature(dp)
• Humidity, relative(rh)

SGP/SONDE/C1 - Broken temperature sensor

The temperature sensor broke shortly after launch on this sounding.  All of the 
temperature-related data (tdry, rh, dp) are incorrect.

• Dry Bulb Temperature(tdry)
• Dewpoint Temperature(dp)
• Humidity, relative(rh)

SGP/SONDE/C1 - Temperature sensor broke high into the sounding

The temperature sensor on this radiosonde appeared to break 56 minutes and 22 seconds into 
the sounding at an altitude of 16570 m.  All the data below this point are good; only 
the data above this point to the end of the sounding (88 minutes and 14 seconds) are bad.

• Dry Bulb Temperature(tdry)
• Dewpoint Temperature(dp)
• Humidity, relative(rh)

SGP/MPL/C1 - Signal degrading

The MPL viewport window was blown off during a storm on 2002/09/25.  The MPL received a 
soaking of rain.  Following this event, although site operations cleaned and dried the 
optics, the lidar performance continued to degrade over the next few months.  Although 
initially suitable for cloud detection, by Dec 10th the lidar was providing useful results only 
during the day (oddly enough).  By Jan 16, the detector was dead.  

It is not recommended to depend on night-time cloud base heights after Dec. 10 2002. 

It is not recommended to use any of the data after 9/25 for aerosol retrievals.

• lon
• Pressure, associated geometric height, at altitude, NGM model output(height)
• range_offset
• laser_scalar_sync_offset
• Preliminary cloud base height above ground level(preliminary_cbh)
• filter_temp
• trigger_freq
• time
• energy_monitor
• transceiver_altitude_angle
• voltage_15
• voltage_10
• pulse_rep
• Backscatter(backscatter)
• laser_sync_offset
• range_bin_time
• laser_temp
• time_offset
• base_time
• scalar_sync_offset
• instrument_temp
• total_counts
• background_signal
• lat
• range
• shots_sum
• voltage_05
• max_altitude
• range_bins
• detector_temp
• shots_summed
• deadtime_correction
• alt
• property
• range_bin_width
• transceiver_azimuth_angle

• background_signal
• energy_monitor
• alt
• Cloud base height(cloud_base_height)
• cloud_top_attenuation_flag
• Backscatter(backscatter)
• lon
• baseline_update_time
• detector_temp
• cloud_mask_2
• random_error
• cloud_mask_1
• cloud top height(cloud_top_height)
• pulse_rep
• time_offset
• shots_summed
• lat
• instrument_temp
• base_time
• Pressure, associated geometric height, at altitude, NGM model output(height)
• laser_temp

SGP/MPL/C1 - Detector Failure

The detector failed following a period of data quality degradation.  The MPL was replaced 
on 1/31/2003.

• lon
• Pressure, associated geometric height, at altitude, NGM model output(height)
• range_offset
• laser_scalar_sync_offset
• Preliminary cloud base height above ground level(preliminary_cbh)
• filter_temp
• trigger_freq
• time
• energy_monitor
• transceiver_altitude_angle
• voltage_15
• voltage_10
• pulse_rep
• Backscatter(backscatter)
• laser_sync_offset
• range_bin_time
• laser_temp
• time_offset
• base_time
• scalar_sync_offset
• instrument_temp
• total_counts
• background_signal
• lat
• range
• shots_sum
• voltage_05
• max_altitude
• range_bins
• detector_temp
• shots_summed
• deadtime_correction
• alt
• property
• range_bin_width
• transceiver_azimuth_angle

• background_signal
• energy_monitor
• alt
• Cloud base height(cloud_base_height)
• cloud_top_attenuation_flag
• Backscatter(backscatter)
• lon
• baseline_update_time
• detector_temp
• cloud_mask_2
• random_error
• cloud_mask_1
• cloud top height(cloud_top_height)
• pulse_rep
• time_offset
• shots_summed
• lat
• instrument_temp
• base_time
• Pressure, associated geometric height, at altitude, NGM model output(height)
• laser_temp

SGP/MPL/C1 - Metadata errors

The latitude, longitude and altitude of the Micropulse Lidar
(MPL) were incorrectly entered into the ARM database.  The 
correct location of the SGP.C1 MPL is:
   Lat: 36.606N
   Lon: 97.485W
   Alt:    316m

• lat
• lon
• alt

• lon
• lat
• alt

SGP/TSI/C1 - Metadata errors

The latitude, longitude and altitude of the Total Sky Imager 
(TSI) were incorrectly entered into the ARM database.  The 
correct location of the SGP.C1 TSI is:
   Lat: 36.606N
   Lon: 97.485W
   Alt:    316m

• alt
• lon
• lat

• lon
• alt
• lat

SGP/MPL/C1 - Reduced detection sensitivity

During the time periods indicated, the laser power supply was low.  This resulted in 
compromised detection sensitivity, particularly for thin clouds and/or during daylight hours.  
That is, some clouds may not have been identified.  The low laser power would not have 
resulted in false positives.

• Preliminary cloud base height above ground level(preliminary_cbh)

• Cloud base height(cloud_base_height)
• cloud_mask_2
• cloud_mask_1
• cloud top height(cloud_top_height)
• cloud_top_attenuation_flag

• MPL Cloth et al. Algorithm Significance Mask(SigniMaskMplCloth)

• MPL Cloth et al. Algorithm Cloud Mask(CloudMaskMplCloth)

SGP/SONDE/C1 - Incorrect surface temperature

The operator entered a the surface temperature incorrectly on this sounding.  The sonde 
data file shows the temperature as 33.5 degC but the operations log shows it as 3.5 degC.  
The first temperature recorded by the sonde after launch is 3.7 degC, consistent with the 
typical early morning inversion.

• Dry Bulb Temperature(tdry)
• Dewpoint Temperature(dp)
• Humidity, relative(rh)

SGP/SONDE/C1 - Scheduled Soundings Missed

The following scheduled sonde launches were missed due to computer 
system failures:

20040116.2330
20040117.0530
20040117.1130
20040117.1730
20040118.0530
20040121.0530

• Raw data stream - documentation not supported

• Dewpoint Temperature(dp)
• Dry Bulb Temperature(tdry)
• lon
• Mean Wind Speed(wspd)
• base_time
• asc
• Pressure, atmospheric, constant value of model level, RUC model output(pres)
• Wind Direction(deg)
• Northward Wind Component(v_wind)
• time_offset
• lat
• alt
• wstat
• Humidity, relative(rh)
• Eastward Wind Component(u_wind)

SGP/AOS/C1 - PCASP instrument problem

PCASP (optical particle counter) gave unusually low aerosol signal counts despite numerous 
attempts to fix the instrument by the mentor and manufacturer.

• Particle concentration (0.50 um < Dp < 0.60 um) from PMS PCASP optical particle
  counter, channel 13(pa50_p60conc)
• Particle concentration (1.80 um < Dp < 2.00 um) from PMS PCASP optical particle
  counter, channel 22(pa180_p200conc)
• Particle concentration (6.50 um < Dp < 8.00 um) from PMS PCASP optical particle
  counter, channel 30(pa650_p800conc)
• Particle concentration (2.00 um < Dp < 2.30 um) from PMS PCASP optical particle
  counter, channel 23(pa200_p230conc)
• Particle concentration (0.30 um < Dp < 0.35 um) from PMS PCASP optical particle
  counter, channel 9(pa30_p35conc)
• Particle concentration (0.16 um < Dp < 0.18 um) from PMS PCASP optical particle
  counter, channel 4(pa16_p18conc)
• Particle concentration (2.30 um < Dp < 2.60 um) from PMS PCASP optical particle
  counter, channel 24(pa230_p260conc)
• Particle concentration (3.00 um < Dp < 3.50 um) from PMS PCASP optical particle
  counter, channel 26(pa300_p350conc)
• Particle concentration (0.70 um < Dp < 0.80 um) from PMS PCASP optical particle
  counter, channel 15(pa70_p80conc)
• Particle concentration (1.00 um < Dp < 1.30 um) from PMS PCASP optical particle
  counter, channel 18(pa100_p130conc)
• Particle concentration (0.20 um < Dp < 0.23 um) from PMS PCASP optical particle
  counter, channel 6(pa20_p23conc)
• Particle concentration (Dp > 10 um) from PMS PCASP optical particle counter,
  channel 0(Pa1000Conc)
• Particle concentration (0.45 um < Dp < 0.50 um) from PMS PCASP optical particle
  counter, channel 12(pa45_p50conc)
• Particle concentration (5.00 um < Dp < 6.50 um) from PMS PCASP optical particle
  counter, channel 29(pa500_p650conc)
• Particle concentration (0.10 um < Dp < 0.12 um) from PMS PCASP optical particle
  counter, channel 1(pa10_p12conc)
• Particle concentration (2.60 um < Dp < 3.00 um) from PMS PCASP optical particle
  counter, channel 25(pa260_p300conc)
• Particle concentration (1.40 um < Dp < 1.60 um) from PMS PCASP optical particle
  counter, channel 20(pa140_p160conc)
• Particle concentration (0.14 um < Dp < 0.16 um) from PMS PCASP optical particle
  counter, channel 3(pa14_p16conc)
• Particle concentration (0.40 um < Dp < 0.45 um) from PMS PCASP optical particle
  counter, channel 11(pa40_p45conc)
• Particle concentration (0.90 um < Dp < 1.00 um) from PMS PCASP optical particle
  counter, channel 17(pa90_p100conc)
• Particle concentration (1.60 um < Dp < 1.80 um) from PMS PCASP optical particle
  counter, channel 21(pa160_p180conc)
• Particle concentration (3.50 um < Dp < 4.00 um) from PMS PCASP optical particle
  counter, channel 27(pa350_p400conc)
• Particle concentration (0.12 um < Dp < 0.14 um) from PMS PCASP optical particle
  counter, channel 2(pa12_p14conc)
• Particle concentration (0.23 um < Dp < 0.26 um) from PMS PCASP optical particle
  counter, channel 7(pa23_p26conc)
• Particle concentration (8.00 um < Dp < 10.00 um) from PMS PCASP optical particle
  counter, channel 31(pa800_p1000conc)
• Particle concentration (1.30 um < Dp < 1.40 um) from PMS PCASP optical particle
  counter, channel 19(pa130_p140conc)
• Particle concentration (4.00 um < Dp < 5.00 um) from PMS PCASP optical particle
  counter, channel 28(pa400_p500conc)
• Particle concentration (0.18 um < Dp < 0.20 um) from PMS PCASP optical particle
  counter, channel 5(pa18_p20conc)
• Particle concentration (0.60 um < Dp < 0.70 um) from PMS PCASP optical particle
  counter, channel 14(pa60_p70conc)
• Particle concentration (0.26 um < Dp < 0.30 um) from PMS PCASP optical particle
  counter, channel 8(pa26_p30conc)
• Particle concentration (0.80 um < Dp < 0.90 um) from PMS PCASP optical particle
  counter, channel 16(pa80_p90conc)
• Particle concentration (0.35 um < Dp < 0.40 um) from PMS PCASP optical particle
  counter, channel 10(pa35_p40conc)

• OPCFlow
• OPCSheath
• OPCLaserVolt

SGP/AOS/C1 - Ozone instrument removed for repair

The ozone monitor was removed and sent back to the manufacturer for repair.

• Ozone concentration(Ozone)

• O3_Span
• O3_SetPt
• O3_Cont
• O3_Press
• O3_LinHeater
• O3_Offset
• O3_Mode
• O3_LinTemp
• O3_Temp
• O3_Spn
• O3_Samp
• O3_Zro

SGP/AOS/C1 - Condensation Particle Counter failure

The CPC signal declined to a low value. The instrument was shipped back to the mentor, 
cleaned and repaired. The instrument inlet was clogged.

• Particle concentration from Condensation Particle Counter(CPCPartConc)

• CPCSaturT
• CPCDeltT
• CPCCondT

SGP/AOS/C1 - Wet nephelometer problems

The humidifier tube was coated with mold and had to be replaced. This affects the wet 
nepheleometer measurements and the calculations of the aerosol hygroscopic growth.

The humidifer was cleaned and replaced. A filter was added to the water circulation to 
minimize mold.

• TSINephTSamp_HRH
• HGupstream_RH
• Backscattering coefficient at 10 um from 550 nm TSI High RH Nephelometer(GrnBScatCoef_10um_HRH)
• HGdownstream_T
• Total scattering coefficient at 1 um from 550 nm TSI High RH Nephelometer(GrnTScatCoef_1um_HRH)
• Total scattering coefficient at 1 um from 450 nm TSI High RH Nephelometer(BluTScatCoef_1um_HRH)
• TSINephPres_HRH
• Backscattering coefficient at 1 um from 700 nm TSI High RH Nephelometer(RedBScatCoef_1um_HRH)
• Backscattering coefficient at 1 um from 550 nm TSI High RH Nephelometer(GrnBScatCoef_1um_HRH)
• HGdownstream_RH
• Total scattering coefficient at 10 um from 550 nm TSI High RH Nephelometer(GrnTScatCoef_10um_HRH)
• TSINephRHSamp_HRH
• Total scattering coefficient at 10 um from 450 nm TSI High RH Nephelometer(BluTScatCoef_10um_HRH)
• Total scattering coefficient at 1 um from 700 nm TSI High RH Nephelometer(RedTScatCoef_1um_HRH)
• HGupstream_T
• Backscattering coefficient at 10 um from 700 nm TSI High RH Nephelometer(RedBScatCoef_10um_HRH)
• Backscattering coefficient at 10 um, from 450 nm TSI High RH Nephelometer(BluBScatCoef_10um_HRH)
• Total scattering coefficient at 10 um from 700 nm TSI High RH Nephelometer(RedTScatCoef_10um_HRH)
• Backscattering coefficient at 1 um, from 450 nm TSI High RH Nephelometer(BluBScatCoef_1um_HRH)
• TSINephTin_HRH

• RedTScatZero_HRH
• GrnRScatZero_HRH
• BluRScatZero_HRH
• BluTScatZero_HRH
• TSINephLV_HRH
• GrnBScatSpn_HRH
• RedRScatZero_HRH
• BluBScatZero_HRH
• GrnTScatSpn_HRH
• RedBScatZero_HRH
• BluBScatSpn_HRH
• GrnTScatZero_HRH
• TSISensGrn_HRH
• BluTScatSpn_HRH
• RedTScatSpn_HRH
• GrnBScatZero_HRH
• RedBScatSpn_HRH
• TSINephLC_HRH

SGP/TSI/C1 - Shadowband Misalignment

The shadowband was slightly misaligned and was corrected by adjusting it +2 degrees.

• Cloud decision images, Total Sky Imager, PNG format(png)

• JPEG data stream - documentation not yet available

• count.sky
• region.sun.count.opaque
• count.opaque
• region.sun.count.thin
• region.sun.count
• Cloud amount, opaque (percent)(percent.opaque)
• count.mask
• Cloud amount, thin (percent)(percent.thin)
• count.thin
• count.sub.proczen

SGP/THWAPS/C1 - RH Sensor Calibration

The analog output for the T/RH probe was incorrectly calibrated.  This
caused excessively high readings of RH.

• Pressure, vapor, 60-m height, 30-min intervals(vap_pres)
• Humidity, relative, 30-min intervals, standard deviation(sd_rh)
• sd_vap_pres
• Humidity, relative(rh)

SGP/AOS/C1 - Failed RH sensor

The RH sensor inside the humidified nephelometer began to slowly decline in value in the 
upper RH range beginning in early 2004 and becoming more noticable poor on 20041117. The 
sensor currently reaches a high RH value of about 60% when the actual RH is closer to 80%.

The sensor was replaced in the Spring of 2005, but the problem remained.  Effective 
1/1/2004, this sensor is not used to calculate scientific data and is therefore essentially 
abandoned in the field.  An end-date of 20050501 is being used as a placeholder.

• TSINephRHSamp_HRH

SGP/SONDE/C1 - Possibly bad pressure sensor or operator data entry error

There is a discrepency between the surface pressure and temperature data entered by the 
operator and that recorded by the THWAPS.  Review of the raw data from the radiosonde shows 
that the pressure was periodically varying by as much as 12 hPa (~988 to 1000)in the 
time period before launch.  The operator entry of 998.2 is at the high end of this range - 
the concurrent THWAPS reading was about 988.4 at the low end.  The operator entered 
temperature 6.2 degC is considerably higher than the THWAPS value of 1.8.  The pre-flight log 
entry for this sounding is missing from the OMIS database.  If not for the extremely 
unstable pressure reading I would have assumed this was an operator error.  It will take some 
more research to figure out what is going on.

• Dewpoint Temperature(dp)
• Dry Bulb Temperature(tdry)
• lon
• Mean Wind Speed(wspd)
• base_time
• asc
• Pressure, atmospheric, constant value of model level, RUC model output(pres)
• Wind Direction(deg)
• Northward Wind Component(v_wind)
• time_offset
• lat
• alt
• wstat
• Humidity, relative(rh)
• Eastward Wind Component(u_wind)

SGP/TSI/C1 - Instrument failure

The TSI-880 experienced a power and/or computer failure. It was replaced with a spare 
TSI-440 and data collection resumed 4/5/05.  Note: this is a temporary replacement.

• Cloud decision images, Total Sky Imager, PNG format(png)

• JPEG data stream - documentation not yet available

• Raw data stream - documentation not supported

• region.horizon.count.opaque
• solar.altitude
• count.mask
• region.zenith.count.thin
• count.unknown
• region.zenith.count
• count.sub.proczen
• lat
• region.zenith.count.opaque
• count.sky
• count.opaque
• region.sun.count.opaque
• region.sun.count.thin
• lon
• solar.azimuth
• region.horizon.count
• region.horizon.count.thin
• count.sub.horz
• alt
• Cloud amount, thin (percent)(percent.thin)
• count.thin
• base_time
• Sunshine Meter(sunny)
• region.sun.count
• count.box
• Cloud amount, opaque (percent)(percent.opaque)
• sun.strength
• time_offset

SGP/AOS/C1 - wet nephelometer out of service

The humidified nephelometer was removed and shipped back to CMDL to test and work on the 
relative humidity sensor inside the instrument.

• HGupstream_RH
• TSINephTSamp_HRH
• Backscattering coefficient at 10 um from 550 nm TSI High RH Nephelometer(GrnBScatCoef_10um_HRH)
• HGupstream_T
• HGdownstream_T
• Total scattering coefficient at 1 um from 550 nm TSI High RH Nephelometer(GrnTScatCoef_1um_HRH)
• TSINephPres_HRH
• Total scattering coefficient at 1 um from 450 nm TSI High RH Nephelometer(BluTScatCoef_1um_HRH)
• Backscattering coefficient at 1 um from 700 nm TSI High RH Nephelometer(RedBScatCoef_1um_HRH)
• Backscattering coefficient at 10 um from 700 nm TSI High RH Nephelometer(RedBScatCoef_10um_HRH)
• HGdownstream_RH
• Backscattering coefficient at 1 um from 550 nm TSI High RH Nephelometer(GrnBScatCoef_1um_HRH)
• Total scattering coefficient at 10 um from 550 nm TSI High RH Nephelometer(GrnTScatCoef_10um_HRH)
• TSINephRHSamp_HRH
• Total scattering coefficient at 10 um from 450 nm TSI High RH Nephelometer(BluTScatCoef_10um_HRH)
• Backscattering coefficient at 10 um, from 450 nm TSI High RH Nephelometer(BluBScatCoef_10um_HRH)
• Total scattering coefficient at 10 um from 700 nm TSI High RH Nephelometer(RedTScatCoef_10um_HRH)
• Backscattering coefficient at 1 um, from 450 nm TSI High RH Nephelometer(BluBScatCoef_1um_HRH)
• TSINephTin_HRH
• Total scattering coefficient at 1 um from 700 nm TSI High RH Nephelometer(RedTScatCoef_1um_HRH)

SGP/MPL/C1 - Sensor Calibration

The Energy Monitor records the value of the laser energy. During the time in question, the 
laser energy exceed the maximum value in the calibration table for the energy monitor. 
In other words, the value is pegged. This condition does not affect the backscatter 
signal. But it will prevent users from normalizing the backscatter signal to the laser output.

• energy_monitor

• Raw data stream - documentation not supported

SGP/SONDE/C1 - Surface pressure incorrect

I think the operator inadvdertently entered an incorrect surface pressure value.  The 
value entered is 988.8 hPa but the value shown in the raw data file at launch is 968.8.  As a 
result, the absolute altitudes in this sounding will be slightly incorrect as will be 
the ascent rate during the first 30 seconds of flight.

• alt
• asc

SGP/SONDE/C1 - Surface pressure bad and other data noisy

I was checking this sounding because the surface pressure entered by the operator was 
considerably higher than that recorded by the TWHAPS and SMOS.  I'm not sure why, but the 
pressure data are very noisy while the sonde is on the ground (which accounts for the 
incorrect surface pressure) and the RH data aloft do not look terrible but do not look great 
either.

• Dewpoint Temperature(dp)
• Dry Bulb Temperature(tdry)
• lon
• Mean Wind Speed(wspd)
• base_time
• asc
• Pressure, atmospheric, constant value of model level, RUC model output(pres)
• Wind Direction(deg)
• Northward Wind Component(v_wind)
• time_offset
• lat
• alt
• wstat
• Humidity, relative(rh)
• Eastward Wind Component(u_wind)

SGP/SONDE/C1 - Surface pressure incorrect

I think the operator inadvdertently typed an 89 instead of a 78 when entering the surface 
pressure value.  The value entered is 989.9 hPa but the value shown in the raw data file 
at launch is 978.9.  As a result, the absolute altitudes in this sounding will be 
slightly incorrect as will be the ascent rate during the first 30 seconds of flight.

• alt
• asc

SGP/SONDE/C1 - Surface pressure incorrect

I think the operator inadvdertently mistyped a digit when entering the surface pressure 
value.  The value entered is 975.6 hPa but the value shown in the raw data file at launch 
is 972.6.  As a result, the absolute altitudes in this sounding will be slightly incorrect 
as will be the ascent rate during the first 30 seconds of flight.

• alt
• asc

SGP/VCEIL/C1 - poor signal

When parameters were changed (set noise_h2_compensation to "ON" and units to "METERS") to 
correct a low amplitude problem, the backscatter plots began displaying horizontal 
stripes indicating detector "ringing". However, the cloud base heights are not affected. The 
problem was corrected when the instrument was replaced.

• detection_status
• Backscatter(backscatter)

SGP/SONDE/C1 - Bad RH Data

The RH values below 6 km are incorrect.  The problem relates to a failure of the GC25 
ground check set used before this particular sounding.  The failure seems to have affected 
the sensor calibration with the effect that one of the two sensors was reading artificially 
high.  Because the internal processing software uses the highest of the two sensor 
readings, the bad sensor value is chosen whenever it is not heated.

• Dewpoint Temperature(dp)
• Humidity, relative(rh)

SGP/SONDE/C1 - Bad T/RH and surface P.

Apparently multiple failures.  The radiosonde temperature sensor broke on launch causing 
an approximate 35 degC negative offset and as a result, the RH is incorrect.  Furthermore, 
it appears that the pressure sensor was off by approximately 4 hPa, though this would 
not affect the altitude calculation, the absolute pressure is wrong.

• Dry Bulb Temperature(tdry)
• Humidity, relative(rh)
• Pressure, atmospheric, constant value of model level, RUC model output(pres)

SGP/THWAPS/C1 - Minor bias in humidity

The THWAPS humidity sensor output was scaled so that the instrument output
voltage range (0-1VDC) represented 0-100 %RH. Comparisons with the
co-located chilled mirror sensor at the CF suggested that the THWAPS RH
sensor was reading artifically low at high humidities because of this 100
%RH maximum. 
   
The scaling of the system was changed so that 0-1 VDC now represents 0-110
%RH. This resulted in a slight loss of precision in the measurements, but
since the RH measurement is only accurate to 2-3 %RH at best, this isn't a
significant problem.

• Humidity, relative(rh)

• Humidity, relative(rh)

SGP/THWAPS/C1 - Minor bias in saturation vapor pressure

The saturation vapor correction when temps are below 0C contained an error
in the multiplier.  The incorrect multiplier only equates to an error of
0.01 kPa which is less than the stated uncertainty of the measurement (+/-
0.035 kPa).

• Pressure, vapor, 60-m height, 30-min intervals(vap_pres)

SGP/SONDE/C1 - Temperature/RH incorrect

The temperature throughout this sounding is too high and as a result the RH values will be 
incorrect as well.  I'm not sure what is wrong here but the operators noted reasonable 
values (18.1 degC, 87%) in the log before launch.  Review of the raw data, however, shows 
the sonde reporting temperatures nearly 20 degC higher.  I suppose it is possible that 
the operator entered into the log the reference temperature from the GC25 ground check set 
rather than the temperature reported by the sonde - I can't think of any other 
explanation - there is no doubt that the temperature sensor on this sonde was bad.

• Humidity, relative(rh)
• Dry Bulb Temperature(tdry)

• Dry Bulb Temperature(tdry)
• Dewpoint Temperature(dp)
• Humidity, relative(rh)

SGP/MPL/C1 - Instrument offline

Instrument was taken offline due to a failure of the laser power supply.  Data are missing 
and unrecoverable.

• lon
• Pressure, associated geometric height, at altitude, NGM model output(height)
• range_offset
• laser_scalar_sync_offset
• Preliminary cloud base height above ground level(preliminary_cbh)
• filter_temp
• trigger_freq
• time
• energy_monitor
• transceiver_altitude_angle
• voltage_15
• voltage_10
• pulse_rep
• Backscatter(backscatter)
• laser_sync_offset
• range_bin_time
• laser_temp
• time_offset
• base_time
• scalar_sync_offset
• instrument_temp
• total_counts
• background_signal
• lat
• range
• shots_sum
• voltage_05
• max_altitude
• range_bins
• detector_temp
• shots_summed
• deadtime_correction
• alt
• property
• range_bin_width
• transceiver_azimuth_angle

• background_signal
• energy_monitor
• alt
• Cloud base height(cloud_base_height)
• cloud_top_attenuation_flag
• Backscatter(backscatter)
• lon
• baseline_update_time
• detector_temp
• cloud_mask_2
• random_error
• cloud_mask_1
• cloud top height(cloud_top_height)
• pulse_rep
• time_offset
• shots_summed
• lat
• instrument_temp
• base_time
• Pressure, associated geometric height, at altitude, NGM model output(height)
• laser_temp

• time_offset
• MPL Cloth et al. Algorithm Significance Mask(SigniMaskMplCloth)
• Heights
• base_time

• time_offset
• base_time
• Heights
• MPL Cloth et al. Algorithm Cloud Mask(CloudMaskMplCloth)

SGP/TSI/C1 - Heater problem

The TSI was converted from a model 880 to 660 which requires separate power for the mirror 
heater. The heater was not powered during this period so morning dew and other 
condensation was not quickly evaporated.

• Cloud decision images, Total Sky Imager, PNG format(png)

• JPEG data stream - documentation not yet available

• count.opaque
• Cloud amount, opaque (percent)(percent.opaque)
• Cloud amount, thin (percent)(percent.thin)
• count.thin

SGP/AOS/C1 - Nephelometer calibration drift

Bad span check on the humidified nepehelometer.  Instrument was recalibrated and returned 
to service on 10/28/2005 at 1940 UTC.

• HGupstream_RH
• TSINephTSamp_HRH
• Backscattering coefficient at 10 um from 550 nm TSI High RH Nephelometer(GrnBScatCoef_10um_HRH)
• Total scattering coefficient at 1 um from 550 nm TSI High RH Nephelometer(GrnTScatCoef_1um_HRH)
• TSINephPres_HRH
• Total scattering coefficient at 1 um from 450 nm TSI High RH Nephelometer(BluTScatCoef_1um_HRH)
• Backscattering coefficient at 1 um from 700 nm TSI High RH Nephelometer(RedBScatCoef_1um_HRH)
• Backscattering coefficient at 10 um from 700 nm TSI High RH Nephelometer(RedBScatCoef_10um_HRH)
• Backscattering coefficient at 1 um from 550 nm TSI High RH Nephelometer(GrnBScatCoef_1um_HRH)
• HGdownstream_RH
• Total scattering coefficient at 10 um from 550 nm TSI High RH Nephelometer(GrnTScatCoef_10um_HRH)
• TSINephRHSamp_HRH
• Total scattering coefficient at 10 um from 450 nm TSI High RH Nephelometer(BluTScatCoef_10um_HRH)
• Backscattering coefficient at 10 um, from 450 nm TSI High RH Nephelometer(BluBScatCoef_10um_HRH)
• Total scattering coefficient at 10 um from 700 nm TSI High RH Nephelometer(RedTScatCoef_10um_HRH)
• Backscattering coefficient at 1 um, from 450 nm TSI High RH Nephelometer(BluBScatCoef_1um_HRH)
• TSINephTin_HRH
• Total scattering coefficient at 1 um from 700 nm TSI High RH Nephelometer(RedTScatCoef_1um_HRH)

• BluBScatSpn_HRH
• BluTScatSpn_HRH
• BluRScatZero_HRH
• BluTScatZero_HRH
• BluBScatZero_HRH

SGP/SONDE/C1 - Bad RH Data

The RH values during this sounding oscillate between reasonable values and near-zero 
values.  The oscillation is due to failure of the RH sensor heating process.

• Dewpoint Temperature(dp)
• Humidity, relative(rh)

SGP/SONDE/C1 - Sonde RH values incorrect

RH values for all sondes launched during this time were incorrect due to a faulty Ground 
Check set which damaged or conditioned the RH sensor improperly.

• Dewpoint Temperature(dp)
• Humidity, relative(rh)

SGP/SONDE/C1 - Mixed use of RS92-SGP and RS92-KL radiosondes

Because of a manufacturer's production problem, we will be using both RS92-SGP (GPS 
windfinding and RS92-KL (Loran windfinding) radiosondes at the SGP/CF starting February 10, 
2006.  The radiosonde type used for the each sounding may be determined by looking the 
metadata variable "launch_status" in the netCDF data files.

• wstat
• lon
• Mean Wind Speed(wspd)
• Wind Direction(deg)
• Northward Wind Component(v_wind)
• lat
• Eastward Wind Component(u_wind)

SGP/SONDE/C1 - Soundings done as part of dual-sonde flights

The following soundings done during the subject time period were flown in dual-sonde mode 
in which the standard ARM RS92 radiosonde was attached to the same balloon with a NASA 
ATR (atmospheric temperature reference) radiosonde.  The radiosondes were separated by a 6' 
styrofoam bar.  To accommodate the additional weight, we used 1200g balloons rather than 
350g balloons.  Accordingly, we want to alert users that these soundings may reach 
higher altitudes than normal for ARM soundings and that the ascent rate may be somewhat 
higher.  The following soundings are affected:

Sequence  Date    UTC launch time
    1     2/22        0530
    2     2/22        1730
    3     2/22        2330 <---- No data: launch failure    
    4     2/23        0230
    5     2/23        0530
    6     2/23        1730    
    7     2/23        2030
    8     2/23        2330
    9     2/24        2330
   10     2/25        0215
   11     2/25        0509    
   12     2/25        1730
   13     2/25        1930
   14     2/25        2300

• Dewpoint Temperature(dp)
• Dry Bulb Temperature(tdry)
• lon
• Mean Wind Speed(wspd)
• base_time
• asc
• Pressure, atmospheric, constant value of model level, RUC model output(pres)
• Wind Direction(deg)
• Northward Wind Component(v_wind)
• time_offset
• lat
• alt
• wstat
• Humidity, relative(rh)
• Eastward Wind Component(u_wind)

SGP/SONDE/C1 - DigiCORAIII failed, replaced with S01/S02 launches

The digiCORA-III failed on Saturday 2004-01-17.  The operators reported that they were 
unable to load the software and conduct normal soundings.	Following procedure, they 
conducted the regular soundings by using the S01/S02 systems as allowed by the AIRS IOP schedule.
The netCDF header fields "input_source" and "facility_id" will mention which of the 
S01/S02 systems was used in these launches.

• Raw data stream - documentation not supported

• alt
• lon
• lat

SGP/TSI/C1 - Birds obstructing view

Birds were frequently in the the field-of-view and soiling the mirror, affecting the 
visible sky image and resulting processed cloud fraction image. Bird deterant spikes were 
installed on top of the camera housing and arm on 5/16 which prevented their perching on the 
camera so that the impact on the sky image was reduced. But birds were still present 
around the edges of the mirror until additional spikes were installed on top of the four 
corners of the enclosure on 6/14.

• Cloud decision images, Total Sky Imager, PNG format(png)

• JPEG data stream - documentation not yet available

• MPEG data stream - documentation not yet available

SGP/SONDE/C1 - No Wind/Lat/Lon Data in Sonde Files

The wind finding hardware failed so that no wind or latitude/longitude data was collected 
on the launches for these days.

• wstat
• lon
• Mean Wind Speed(wspd)
• Northward Wind Component(v_wind)
• lat
• Eastward Wind Component(u_wind)

SGP/VCEIL/C1 - low amplitude

When the instrument was replaced with a spare, the backscatter plots began displaying a 
suspiciously low amount of amplitude (noise) but the cloud base heights were not affected. 

Discovered that when the vendor repaired this unit in August 2004, noise compensation was 
set to "OFF". Changed the parameters to "ON".

Also noted that the measurement units was set to "FEET".  This was changed to "METERS.  
The heights are not affected because the ingest recognizes the raw data units and 
automatically converts to meters.

• Backscatter(backscatter)

SGP/AOS/C1 - Missing Condensation Nuclei Counter data

AOS Condensation Nuclei Counter stopped detecting particle counts and was returned to 
mentor for cleaning.  The instrument has small orifices and has a tendency to clog.

• Particle concentration from Condensation Particle Counter(CPCPartConc)

SGP/SONDE/C1 - RH values offset due to error in ground check

Background: After installation of the latest software update , we began performing formal 
ground checks on RS92 radiosondes.  By comparing the
radiosonde readings with reference values in a controlled environment, the
ground check is intended to ensure that the radiosonde sensors are in
calibration before launch.  The radisonde values during the ground check
process are recorded automatically; the reference values are entered by the
operator.  If the radiosonde readings vary from the reference values, the
system 'corrects' the radiosonde values.  In the case of RH, the correction
is applied as an offset (true RH = indicated RH + correction).

Problem: Some operators misunderstood the ground-check procedure and entered the 
radiosonde values of RH rather than the reference value (assumed 0%RH), thus, some soundings done 
during this period have RH values that are different from what they would be if the 
ground check procedure had been done correctly.

Consequence:  Because the RH corrections generally are small (averaging
about 0.5% RH) and the precision of the reported RH data during this time
period is 1% RH, some values will not be affected at all; others will be off by about 1% 
RH (still within the stated accuracy of the sensor). 
Furthermore, because entering the radiosonde value as the reference value
results in a near zero 'correction,' one may view these soundings as being
done without the ground check correction.  Also note that the dew point
value will be suspect as well.

I am attaching below a listing of the soundings that were affected during the indicated 
time period.  Users can see the magnitude of the problem and choose whether or not to apply 
an offset in RH.  Note that application of the offset to the processed RH data (in the 
netCDF file) will not have the same effect of applying the correction to the absolutely 
raw data (before processing), but the differences should be insignificant.  Also note that 
the corrections for each sounding are included in the netCDF header information.  These 
attributes are named 'humidity_correction' and 'humidity_correction_2'.  The values of RH 
indicated by the radiosonde while it is in the ground check set are in attributes 
'humidity_gc_sonde' and 'humidity_gc_sonde_2.'  There is an RH reading for each of the two RH 
sensors used in the RS92 radiosonde.

Here is the list - RH1 and RH2 are the radiosonde readings in the ground
check set.  Ref is the reference value entered by the operator.  The
correcte reference value should be 0%.  To obtain an approximation to the RH value that 
would have been recorded if the ground check had been done
properly, subtract the Ref value from the indicated RH.

 YYYYMMDD  HHMM  SerialN      RH1     RH2     Ref
 20060827  2332  B2624322    1.00    1.00    1.00
 20060828  1731  B2634078    1.00    1.00    1.00
 20060828  2332  B2624380    3.00    3.00    2.00
 20060909  2331  B2615266    1.00    1.00    1.00
 20060915  1759  B2914012    1.00    1.00    1.00
 20060919  2350  B2825128    1.00    1.00    1.00
 20060920  1800  B2825088    1.00    1.00    1.00
 20060920  2346  B2815633    1.00    1.00    1.00
 20060921  1728  B2834732    1.30    1.30    1.30
 20060921  2330  B2825042    1.50    1.50    1.50
 20060922  0527  B2825043    1.70    1.80    1.70
 20060922  1128  B2825031    1.60    1.50    1.60
 20060922  1729  B2834437    1.50    1.50    1.50
 20060922  2330  B2825040    0.40    0.50    0.50
 20060923  0529  B2834733    0.30    0.30    0.30
 20060923  1128  B2825026    0.40    0.40    0.40
 20060923  1729  B2825064    0.60    0.70    0.60
 20060923  2330  B2825041    0.40    0.50    0.50
 20060924  0529  B2825039    0.30    0.30    0.30
 20060924  1729  B2825025    0.20    0.30    0.20
 20060924  2329  B2825032    0.30    0.40    0.40
 20060925  0529  B2824234    0.20    0.30    0.20

• Dewpoint Temperature(dp)
• Humidity, relative(rh)

SGP/SONDE/C1 - Increased precision for alt, dp, pres, rh, tdry

The output precision of the following variables was increased 20060928

alt  changed from 1m to 0.1m
dp   changed from 0.1degC to 0.01degC
pres changed from 0.1 hPa to 0.01 hPa
RH   changed from 1%RH to 0.01%RH
tdry changed from .1degC to 0.01degC

Note that the increase in precision does not necessarily imply an increase in accuracy.  
Users are cautioned to continue to use their best scientific judgement when using these or 
any other data.

• alt
• Dry Bulb Temperature(tdry)
• Dewpoint Temperature(dp)
• Humidity, relative(rh)
• Pressure, atmospheric, constant value of model level, RUC model output(pres)

SGP/CSPHOT/C1 - Unit #99 removed for upgrade

S/N 99 was returned to Aeronet for calibration/modification at the end of Sept.  On 
return, the upgraded and recalibrated instrument was relocated to be next to the SWS.

• alt
• lat
• Radiance, diffuse, almucantar, at azimuth, from CPSHOT(alm_rad)
• Wavelength of spectrum data(wavelength)
• time
• zenith
• lon
• base_time
• time_offset
• timeObs
• azimuth

• AVHRR satellite images for Darwin from BOM (RAW)(raw)

• base_time
• bins
• sky_error
• sun_error
• Column volume size distribution (dV/dlnr)(size)
• tail2
• tail1
• timeObs
• lat
• num_of_angles
• time_offset
• last_processing_date
• time
• zenith
• tail_level
• alt
• siz_index
• alm_type
• Aerosol optical thickness, Angstrom coefficient from CSPHOT(alpha440_870)
• lon
• Aerosol optical thickness, from CSPHOT(tau440)

• AVHRR satellite images for Darwin from BOM (RAW)(raw)

• AVHRR satellite images for Darwin from BOM (RAW)(raw)

• Aerosol optical thickness, Angstrom coefficient from CSPHOT(alpha440_870)
• time
• siz_index
• alm_type
• zenith
• timeObs
• lat
• angle
• DATA_TYPE
• last_processing_date
• alt
• sky_error
• num_of_angles
• sun_error
• lon
• Wavelength of spectrum data(wavelength)
• tail_level
• Aerosol optical prop., phase functions, total mode, at wvlngth and scat angle(pfn_t)
• tail1
• tail2
• Aerosol optical thickness, from CSPHOT(tau440)
• time_offset
• base_time

• AVHRR satellite images for Darwin from BOM (RAW)(raw)

• AVHRR satellite images for Darwin from BOM (RAW)(raw)

• AVHRR satellite images for Darwin from BOM (RAW)(raw)

• AVHRR satellite images for Darwin from BOM (RAW)(raw)

• TripletVar_380
• TripletVar_1020
• TripletVar_670
• WaterError
• Aerosol optical thickness, angstrom coefficient, at 380-500 nm, from CSPHOT(Angstrom380_500)
• timeObs
• TripletVar_870
• Aerosol optical thickness, angstrom coefficient, at 440-675 nm, polarized(Angstrom440_675_Polar)
• TripletVar_440
• Aerosol optical thickness, angstrom coefficient, at 440-675 nm, from CSPHOT(Angstrom440_675)
• Aerosol optical thickness, at 500 nm, from CPSHOT(aot_500)
• Aerosol optical thickness, at 1020 nm, from CSPHOT(aot_1020)
• TripletVar_1640
• Aerosol optical thickness, at 670 nm, from CSPHOT(aot_670)
• Water vapor, precipitable, column-integrated on isobaric grid, from RUC model(pwv)
• zenith
• TripletVar_500
• Aerosol optical thickness, at 380 nm, from CSPHOT(aot_380)
• Aerosol optical thickness, angstrom coefficient, at 500-870 nm, from CSPHOT(Angstrom500_870)
• time_offset
• lat
• TripletVar_340
• Aerosol optical thickness, angstrom coefficient, at 440-870 nm, from CSPHOT(Angstrom440_870)
• alt
• time
• last_processing_date
• base_time
• Aerosol optical thickness, at 340 nm, from CSPHOT(aot_340)
• Aerosol optical thickness, at 440 nm, from CSPHOT(aot_440)
• Aerosol optical thickness, at 870 nm, from CSPHOT(aot_870)
• Aerosol optical thickness, at 1640 nm, from CSPHOT(aot_1640)
• Aerosol optical thickness, angstrom coefficient, at 340-440 nm, from CSPHOT(Angstrom340_440)
• lon

• view_zenith
• time_offset
• Wavelength of spectrum data(wavelength)
• lon
• timeObs
• lat
• alt
• Radiance, sky, principle planes, at view zenight angle, from CSPHOT(pp_rad)
• zenith
• time
• base_time

• AVHRR satellite images for Darwin from BOM (RAW)(raw)

• TripletVar_1640
• Aerosol optical thickness, at 380 nm, from CSPHOT(aot_380)
• Aerosol optical thickness, at 500 nm, from CPSHOT(aot_500)
• TripletVar_380
• TripletVar_500
• Aerosol optical thickness, at 670 nm, from CSPHOT(aot_670)
• Aerosol optical thickness, angstrom coefficient, at 440-870 nm, from CSPHOT(Angstrom440_870)
• time
• Aerosol optical thickness, angstrom coefficient, at 340-440 nm, from CSPHOT(Angstrom340_440)
• time_offset
• lon
• last_processing_date
• Aerosol optical thickness, at 440 nm, from CSPHOT(aot_440)
• Aerosol optical thickness, at 340 nm, from CSPHOT(aot_340)
• lat
• Aerosol optical thickness, angstrom coefficient, at 500-870 nm, from CSPHOT(Angstrom500_870)
• WaterError
• Aerosol optical thickness, angstrom coefficient, at 440-675 nm, from CSPHOT(Angstrom440_675)
• base_time
• TripletVar_870
• alt
• zenith
• Aerosol optical thickness, at 1020 nm, from CSPHOT(aot_1020)
• TripletVar_340
• TripletVar_440
• TripletVar_1020
• Water vapor, precipitable, column-integrated on isobaric grid, from RUC model(pwv)
• timeObs
• Aerosol optical thickness, angstrom coefficient, at 380-500 nm, from CSPHOT(Angstrom380_500)
• Aerosol optical thickness, at 870 nm, from CSPHOT(aot_870)
• Aerosol optical thickness, angstrom coefficient, at 440-675 nm, polarized(Angstrom440_675_Polar)
• Aerosol optical thickness, at 1640 nm, from CSPHOT(aot_1640)
• TripletVar_670

• Wavelength of spectrum data(wavelength)
• timeObs
• DATA_TYPE
• sun_error
• lon
• Aerosol optical thickness, Angstrom coefficient from CSPHOT(alpha440_870)
• Aerosol optical prop., phase functions, fine mode, at wvlngth and scat angle(pfn_f)
• alm_type
• zenith
• siz_index
• sky_error
• base_time
• angle
• alt
• time
• time_offset
• Aerosol optical thickness, from CSPHOT(tau440)
• lat
• tail2
• tail_level
• tail1
• num_of_angles
• last_processing_date

• Aerosol optical thickness,extinction,441nm, coarse(AOTExt441_C)
• Aerosol optical thickness,extinction,441nm, fine(AOTExt441_F)
• Aerosol optical property, refractive index, imaginary, 673nm(REFI_673)
• Aerosol optical thickness,absorption,441nm,coarse(AOTAbsp441_C)
• Particle size distribution, volume median radius, total(VolMedianRad_T)
• Aerosol optical thickness,absorption,441nm,fine(AOTAbsp441_F)
• Aerosol optical property, single scattering albedo, 673nm, fine(SSA673_F)
• Aerosol optical property, single scattering albedo, 873nm, coarse(SSA873_C)
• Aerosol optical property, single scattering albedo, 673nm, coarse(SSA673_C)
• Aerosol optical property, single scattering albedo, 873nm, fine(SSA873_F)
• Particle size distribution, volume median radius, fine(VolMedianRad_F)
• time
• Aerosol optical thickness, from CSPHOT(tau440)
• Aerosol optical property, single scattering albedo, 673nm, total(SSA673_T)
• Aerosol optical property, single scattering albedo, 873nm, total(SSA873_T)
• time_offset
• Aerosol optical thickness, 380nm(AOT_380)
• Aerosol optical thickness, Angstrom coefficient, 870-440nm, absorption(AngstromParam870_440_AOT_Absp)
• last_processing_date
• Water vapor, precipitable, column-integrated on isobaric grid, from RUC model(pwv)
• Particle size distribution, effective radius, total(EffRad_T)
• Aerosol optical thickness,extinction,873nm, coarse(AOTExt873_C)
• Aerosol optical thickness,extinction,873nm, fine(AOTExt873_F)
• Aerosol optical thickness,absorption,441nm,total(AOTAbsp441_T)
• Aerosol optical property, refractive index, imaginary, 873nm(REFI_873)
• Particle size distribution, effective radius, coarse(EffRad_C)
• Particle size distribution, volume median radius, coarse(VolMedianRad_C)
• Aerosol optical property, refractive index, real, 873nm(REFR_873)
• Aerosol optical property, asymmetry factor, scattering, 1022nm, coarse(ASYM1022_C)
• Particle size distribution, effective radius, fine(EffRad_F)
• Aerosol optical thickness,extinction,873nm, total(AOTExt873_T)
• Aerosol optical property, asymmetry factor, scattering, 1022nm, fine(ASYM1022_F)
• Aerosol optical property, refractive index, real, 673nm(REFR_673)
• Aerosol optical thickness,extinction,441nm, total(AOTExt441_T)
• Aerosol optical property, asymmetry factor, scattering, 1022nm, total(ASYM1022_T)
• num_of_angles
• Aerosol optical property, asymmetry factor, scattering, 441nm, coarse(ASYM441_C)
• lat
• Aerosol optical property, asymmetry factor, scattering, 441nm, total(ASYM441_T)
• Aerosol optical property, asymmetry factor, scattering, 441nm, fine(ASYM441_F)
• Aerosol optical thickness,absorption,673nm,total(AOTAbsp673_T)
• sun_error
• Aerosol optical thickness,absorption,673nm,coarse(AOTAbsp673_C)
• Aerosol optical thickness,absorption,673nm,fine(AOTAbsp673_F)
• Aerosol optical property, refractive index, imaginary, 441nm(REFI_441)
• Aerosol optical property, refractive index, real, 1022nm(REFR_1022)
• tail2
• Aerosol optical thickness, 500nm(AOT_500)
• tail1
• alt
• Aerosol optical thickness, 1020nm(AOT_1020)
• Aerosol optical thickness,extinction,1022nm, total(AOTExt1022_T)
• Aerosol optical thickness, 1640nm(AOT_1640)
• Aerosol optical thickness,extinction,1022nm, fine(AOTExt1022_F)
• Aerosol optical thickness,extinction,1022nm, coarse(AOTExt1022_C)
• Aerosol optical thickness, 670nm(AOT_670)
• siz_index
• Aerosol optical thickness,absorption,873nm,total(AOTAbsp873_T)
• Aerosol optical property, refractive index, imaginary 1022nm(REFI_1022)
• StdDev_T
• sky_error
• StdDev_C
• StdDev_F
• Aerosol optical thickness, 440nm(AOT_440)
• Aerosol optical thickness,absorption,873nm,fine(AOTAbsp873_F)
• Column volume size distribution (dV/dlnr)(size)
• timeObs
• Aerosol optical thickness,absorption,873nm,coarse(AOTAbsp873_C)
• alm_type
• Aerosol optical thickness, Angstrom coefficient, 870-440nm,extinction(AngstromParam870_440_AOT_Ext)
• DATA_TYPE
• lon
• Aerosol optical property, asymmetry factor, scattering, 673nm, coarse(ASYM673_C)
• zenith
• Aerosol optical thickness,extinction,673nm, total(AOTExt673_T)
• Aerosol optical property, single scattering albedo, 1022nm, total(SSA1022_T)
• Aerosol optical thickness, Angstrom coefficient from CSPHOT(alpha440_870)
• Aerosol optical property, asymmetry factor, scattering, 673nm, total(ASYM673_T)
• Aerosol optical property, asymmetry factor, scattering, 673nm, fine(ASYM673_F)
• Aerosol optical thickness, 870nm(AOT_870)
• Aerosol optical property, single scattering albedo, 1022nm,fine(SSA1022_F)
• Aerosol optical property, asymmetry factor, scattering, 873nm, total(ASYM873_T)
• Aerosol optical property, single scattering albedo, 1022nm, coarse(SSA1022_C)
• Aerosol optical thickness,absorption,1022nm,coarse(AOTAbsp1022_C)
• tail_level
• Aerosol optical property, asymmetry factor, scattering, 873nm, fine(ASYM873_F)
• Aerosol optical thickness,absorption,1022nm,fine(AOTAbsp1022_F)
• Aerosol optical thickness,340nm(AOT_340)
• Aerosol optical property, asymmetry factor, scattering, 873nm, coarse(ASYM873_C)
• Aerosol optical thickness,absorption,1022nm,total(AOTAbsp1022_T)
• bins
• Aerosol optical thickness,extinction,673nm, coarse(AOTExt673_C)
• Aerosol optical property, single scattering albedo, 441nm, total(SSA441_T)
• Aerosol optical thickness,extinction,673nm, fine(AOTExt673_F)
• Aerosol optical property, single scattering albedo, 441nm, fine(SSA441_F)
• Aerosol optical property, single scattering albedo, 441nm, coarse(SSA441_C)
• Particle size distribution, volume concentration, total(VolCon_T)
• Aerosol optical property, refractive index, real, 441nm(REFR_441)
• base_time
• Particle size distribution, volume concentration, fine(VolCon_F)
• Particle size distribution, volume concentration, coarse(VolCon_C)

• AVHRR satellite images for Darwin from BOM (RAW)(raw)

• AVHRR satellite images for Darwin from BOM (RAW)(raw)

• base_time
• lat
• num_of_angles
• alt
• sun_error
• siz_index
• tail1
• tail2
• zenith
• Aerosol optical prop., phase functions, coarse mode, at wvlngth and scat angle(pfn_c)
• lon
• sky_error
• Wavelength of spectrum data(wavelength)
• Aerosol optical thickness, from CSPHOT(tau440)
• last_processing_date
• Aerosol optical thickness, Angstrom coefficient from CSPHOT(alpha440_870)
• angle
• alm_type
• tail_level
• timeObs
• time
• DATA_TYPE
• time_offset

• Aerosol optical thickness, angstrom coefficient, at 440-675 nm, polarized(Angstrom440_675_Polar)
• Water vapor, precipitable, column-integrated on isobaric grid, from RUC model(pwv)
• Aerosol optical thickness, at 500 nm, from CPSHOT(aot_500)
• TripletVar_380
• TripletVar_870
• WaterError
• alt
• TripletVar_1020
• time_offset
• Aerosol optical thickness, angstrom coefficient, at 440-675 nm, from CSPHOT(Angstrom440_675)
• lat
• Aerosol optical thickness, angstrom coefficient, at 440-870 nm, from CSPHOT(Angstrom440_870)
• zenith
• time
• TripletVar_340
• Aerosol optical thickness, at 670 nm, from CSPHOT(aot_670)
• base_time
• TripletVar_1640
• lon
• timeObs
• last_processing_date
• Aerosol optical thickness, at 1020 nm, from CSPHOT(aot_1020)
• Aerosol optical thickness, at 440 nm, from CSPHOT(aot_440)
• TripletVar_440
• TripletVar_500
• Aerosol optical thickness, at 380 nm, from CSPHOT(aot_380)
• Aerosol optical thickness, angstrom coefficient, at 500-870 nm, from CSPHOT(Angstrom500_870)
• Aerosol optical thickness, angstrom coefficient, at 380-500 nm, from CSPHOT(Angstrom380_500)
• TripletVar_670
• Aerosol optical thickness, at 1640 nm, from CSPHOT(aot_1640)
• Aerosol optical thickness, angstrom coefficient, at 340-440 nm, from CSPHOT(Angstrom340_440)
• Aerosol optical thickness, at 340 nm, from CSPHOT(aot_340)
• Aerosol optical thickness, at 870 nm, from CSPHOT(aot_870)

SGP/SONDE/C1 - RH Sensor failure

The differences between the two RH sensors on this sonde are unreasonably high (~20%).  As 
a result the reported RH values oscillate by this amount during the times the sensors 
are alternately heated.  After the heating stops, the reported RH comes from the sensor 
reading the higher value.  There is no way of knowing if this is the correct value.

• Dewpoint Temperature(dp)
• Humidity, relative(rh)

SGP/AOS/C1 - Humidifier controller failure

Watlow PID controller which controls the humidifier stopped working. This mostly affects 
calculated fits of fRH

• Total scattering coefficient at 1 um from 700 nm TSI Low RH Nephelometer(RedTScatCoef_1um_LRH)
• TSINephTSamp_HRH
• HGupstream_RH
• Backscattering coefficient at 10 um, from 450 nm TSI Low RH Nephelometer(BluBScatCoef_10um_LRH)
• Backscattering coefficient at 1 um from 550 nm TSI Low RH Nephelometer(GrnBScatCoef_1um_LRH)
• RH530nm
• Total scattering coefficient at 1 um from 550 nm TSI High RH Nephelometer(GrnTScatCoef_1um_HRH)
• TSINephRHSamp_LRH
• Total scattering coefficient at 1 um from 450 nm TSI High RH Nephelometer(BluTScatCoef_1um_HRH)
• Backscattering coefficient at 1 um from 550 nm TSI High RH Nephelometer(GrnBScatCoef_1um_HRH)
• Total scattering coefficient at 10 um from 550 nm TSI High RH Nephelometer(GrnTScatCoef_10um_HRH)
• Total scattering coefficient at 1 um from 550 nm TSI Low RH Nephelometer(GrnTScatCoef_1um_LRH)
• TSINephRHSamp_HRH
• Total scattering coefficient at 10 um from 450 nm TSI High RH Nephelometer(BluTScatCoef_10um_HRH)
• Total scattering coefficient at 10 um from 700 nm TSI Low RH Nephelometer(RedTScatCoef_10um_LRH)
• TSINephTin_LRH
• Total scattering coefficient at 10 um from 450 nm TSI Low RH Nephelometer(BluTScatCoef_10um_LRH)
• TSINephTSamp_LRH
• Total scattering coefficient at 10 um from 700 nm TSI High RH Nephelometer(RedTScatCoef_10um_HRH)
• Total scattering coefficient at 1 um from 450 nm TSI Low RH Nephelometer(BluTScatCoef_1um_LRH)
• TSINephPres_LRH
• Backscattering coefficient at 10 um from 550 nm TSI High RH Nephelometer(GrnBScatCoef_10um_HRH)
• Backscattering coefficient at 1 um, from 450 nm TSI Low RH Nephelometer(BluBScatCoef_1um_LRH)
• TSINephPres_HRH
• Backscattering coefficient at 1 um from 700 nm TSI High RH Nephelometer(RedBScatCoef_1um_HRH)
• HGdownstream_RH
• SampRH
• Total scattering coefficient at 10 um from 550 nm TSI Low RH Nephelometer(GrnTScatCoef_10um_LRH)
• Total scattering coefficient at 1 um from 700 nm TSI High RH Nephelometer(RedTScatCoef_1um_HRH)
• Backscattering coefficient at 1 um from 700 nm TSI Low RH Nephelometer(RedBScatCoef_1um_LRH)
• Backscattering coefficient at 10 um from 700 nm TSI High RH Nephelometer(RedBScatCoef_10um_HRH)
• Backscattering coefficient at 10 um from 550 nm TSI Low RH Nephelometer(GrnBScatCoef_10um_LRH)
• Backscattering coefficient at 10 um, from 450 nm TSI High RH Nephelometer(BluBScatCoef_10um_HRH)
• Backscattering coefficient at 1 um, from 450 nm TSI High RH Nephelometer(BluBScatCoef_1um_HRH)
• Backscattering coefficient at 10 um from 700 nm TSI Low RH Nephelometer(RedBScatCoef_10um_LRH)
• TSINephTin_HRH

• RedTScatZero_HRH
• BluBScatZero_LRH
• BluRScatZero_HRH
• BluTScatZero_HRH
• GrnBScatSpn_HRH
• RedRScatZero_HRH
• GrnRScatZero_LRH
• RedTScatSpn_LRH
• GrnTScatSpn_HRH
• RedTScatZero_LRH
• RedBScatZero_HRH
• Line11RH
• TSINephLV_LRH
• BluRScatZero_LRH
• BluBScatSpn_HRH
• GrnTScatZero_HRH
• RedBScatSpn_LRH
• RedBScatZero_LRH
• BluTScatSpn_HRH
• GrnBScatSpn_LRH
• TSINephLC_HRH
• BluTScatZero_LRH
• TSINephLC_LRH
• GrnRScatZero_HRH
• TSINephLV_HRH
• GrnTScatZero_LRH
• BluBScatZero_HRH
• GrnTScatSpn_LRH
• RedRScatZero_LRH
• TSISensGrn_LRH
• TSISensGrn_HRH
• RedTScatSpn_HRH
• GrnBScatZero_HRH
• BluBScatSpn_LRH
• RedBScatSpn_HRH
• GrnBScatZero_LRH
• BluTScatSpn_LRH

• Raw data stream - documentation not supported

SGP/CSPHOT/C1 - Not Performing Zenith Observations (Cloud Mode)