MAO/MET/M1 - ORG data incorrect

Optical rain gauge (ORG) precipitation values were incorrect the specified time due to a 
wiring problem.

• org_precip_rate_min
• org_precip_rate_max
• org_precip_rate_std
• ORG precipitation rate mean(org_precip_rate_mean)

MAO/MET/M1 - Reprocessing Notice (RID 1044)

See below for details of reprocessing that was completed on 20140304.  Original 
DQR category: 3 (Yellow, Suspect).

-----------------------------------------------------------

The netcdf files split routinely due to a bug in the ingest. The ingest has been corrected 
and re-released to production. Data will be reprocessed.

• org_precip_rate_min
• pwd_err_code
• org_precip_rate_max
• pwd_cumul_rain
• Altitude above mean sea level(alt)
• time
• ORG precipitation rate mean(org_precip_rate_mean)
• North latitude(lat)
• vapor_pressure_std
• pwd_pw_code_1hr
• Wind speed vector mean(wspd_vec_mean)
• PWD 1 minute mean visibility(pwd_mean_vis_1min)
• Wind direction vector mean(wdir_vec_mean)
• base_time
• PWD 10 minute mean visibility(pwd_mean_vis_10min)
• wdir_vec_std
• Atmospheric pressure(atmos_pressure)
• Vapor pressure mean, calculated(vapor_pressure_mean)
• logger_temp
• org_precip_rate_std
• Wind speed, lower, 1-min avg(wspd_arith_mean)
• PWD 1 minute mean precipitation rate(pwd_precip_rate_mean_1min)
• pwd_pw_code_15min
• Temperature mean(temp_mean)
• rh_std
• Humidity, relative, at 2-m height, 1-min avg(rh_mean)
• pwd_pw_code_inst
• temp_std
• East longitude(lon)
• logger_volt
• time_offset

MAO/SONDE/M1 - Temperature Sensor Failure

It appears that the temperature sensor failed on release of balloon

• Dry Bulb Temperature(tdry)
• Temperature, dewpoint, at altitude(dp)

MAO/MET/M1 - Missing pressure data

Atmospheric pressure data is missing due to power and wiring issues during this time.

• Atmospheric pressure(atmos_pressure)

MAO/MET/M1 - Incorrect relative humidity, vapor pressure, and present weather detector 
data

The relative humidity, vapor pressure, and all data from the PWD are incorrect due to 
power and wiring problems during this time.

• pwd_pw_code_inst
• pwd_pw_code_1hr
• Vapor pressure mean, calculated(vapor_pressure_mean)
• pwd_err_code
• pwd_cumul_rain
• PWD 1 minute mean visibility(pwd_mean_vis_1min)
• PWD 1 minute mean precipitation rate(pwd_precip_rate_mean_1min)
• vapor_pressure_std
• pwd_pw_code_15min
• rh_std
• PWD 10 minute mean visibility(pwd_mean_vis_10min)
• Humidity, relative, at 2-m height, 1-min avg(rh_mean)

MAO/CPC/CCN/CLAP/PSAP/NEPHELOMETER/M1 - power outage

Data are missing due to the power outage.

• Altitude above mean sea level(alt)
• laser_current
• base_time
• cabinet_temp
• time
• saturation_temp
• East longitude(lon)
• orifice_pressure
• nozzle_pressure
• condensation_temp
• time_offset
• optics_temp
• Computed concentration(concentration)
• North latitude(lat)
• ambient_temp

MAO/CPC/CLAP/CCN/PSAP/NEPHELOMETER/M1 - power outage

Data are missing due to the power outage.

• Altitude above mean sea level(alt)
• laser_current
• base_time
• cabinet_temp
• time
• saturation_temp
• East longitude(lon)
• orifice_pressure
• nozzle_pressure
• condensation_temp
• time_offset
• optics_temp
• Computed concentration(concentration)
• North latitude(lat)
• ambient_temp

MAO/CPC/M1 - Low CPC signal

The Condensation Particle Counter (CPC) was clogged and needed cleaning. After cleaning 
signal was still low with a leak in the CPC sample line.

• Computed concentration(concentration)

MAO/MET/M1 - Optical rain gauge performance problems

Condensation inside the optical rain gauge lenses caused false precipitation to be 
recorded. Sensor replacements also showed signs of false precipitation. User discretion advised.

• org_precip_rate_min
• org_precip_rate_max
• org_precip_rate_std
• ORG precipitation rate mean(org_precip_rate_mean)

MAO/AOS/S1/M1 - Instrument maintenance

Instrument maintenance and cleaning inlets affecting data.

• laser_current
• nozzle_pressure
• cabinet_temp
• condensation_temp
• optics_temp
• Computed concentration(concentration)
• saturation_temp
• ambient_temp
• orifice_pressure

MAO/CPC/M1 - Instrument failure

CPC was removed after leak and low signal was discovered after an instrument cleaning. The 
OPC detector was returned to mentor for evaluation. The mentor found two leaks in the 
instrument when there for system maintenance.

• Altitude above mean sea level(alt)
• laser_current
• base_time
• cabinet_temp
• time
• saturation_temp
• East longitude(lon)
• orifice_pressure
• nozzle_pressure
• condensation_temp
• time_offset
• optics_temp
• Computed concentration(concentration)
• North latitude(lat)
• ambient_temp

MAO/AOS/M1 - System down for maintenance

Instruments were periodically offline or sampling room air during the cleaning, repair and 
calibrations.

• laser_current
• nozzle_pressure
• cabinet_temp
• condensation_temp
• optics_temp
• Computed concentration(concentration)
• saturation_temp
• ambient_temp
• orifice_pressure

MAO/MET/M1 - Present weather detector power issue

A broken power connection caused incorrect data from the present weather detector during 
this time.

• pwd_pw_code_inst
• pwd_pw_code_1hr
• pwd_err_code
• pwd_cumul_rain
• PWD 1 minute mean visibility(pwd_mean_vis_1min)
• PWD 1 minute mean precipitation rate(pwd_precip_rate_mean_1min)
• pwd_pw_code_15min
• PWD 10 minute mean visibility(pwd_mean_vis_10min)

MAO/SONDE/M1 - Reprocessing Notice (RID 1253)

See below for details of reprocessing that was completed on 20150121. Original DQR 
category: 4(Red, Incorrect)

-------------------------------------------------------------------------------

The operator incorrectly entered the surface RH value as 10% when it was actually 100%.

• Temperature, dewpoint, at altitude(dp)
• Humidity, relative, on hybrid-b grid, derived from RUC model(rh)

MAO/AOS/CCN/CLAP/CPC/NEPHELOMETER/PSAP/M1 - Power outage. No pump flow

Raw power which drives the pumps and heaters went out. There was no flow through the 
instruments.

• laser_current
• nozzle_pressure
• cabinet_temp
• condensation_temp
• optics_temp
• Computed concentration(concentration)
• saturation_temp
• ambient_temp
• orifice_pressure

MAO/AOS/CCN/CLAP/CPC/NEPHELOMETER/PSAP/M1 - Computer software issue

The computer software stopped collecting data and was rebooted.

• Altitude above mean sea level(alt)
• laser_current
• base_time
• cabinet_temp
• time
• saturation_temp
• East longitude(lon)
• orifice_pressure
• nozzle_pressure
• condensation_temp
• time_offset
• optics_temp
• Computed concentration(concentration)
• North latitude(lat)
• ambient_temp

MAO/CPC/M1 -Internal leak in instrument

The internal leak in the CPC depleted the signal as the flow through instrument was about 
30% of the nominal flow needed to operate the instrument.

• laser_current
• nozzle_pressure
• cabinet_temp
• condensation_temp
• optics_temp
• Computed concentration(concentration)
• saturation_temp
• ambient_temp
• orifice_pressure

MAO/CPC/M1 - Instrument removed for repair

Leak in CPC. Instrument removed from service until it can be fixed.

• Altitude above mean sea level(alt)
• laser_current
• base_time
• cabinet_temp
• time
• saturation_temp
• East longitude(lon)
• orifice_pressure
• nozzle_pressure
• condensation_temp
• time_offset
• optics_temp
• Computed concentration(concentration)
• North latitude(lat)
• ambient_temp

MAO/AOS/CCN/CLAP/NEPHELOMETER/PSAP/M1 - Dilution compressor flow cycling on and off

The dilution flow was cycling on and off. This led to unstable concentrations. Dilution 
flow is about 30% of total flow so concentration uncertainty is on the order of 30%.

• laser_current
• nozzle_pressure
• cabinet_temp
• condensation_temp
• optics_temp
• Computed concentration(concentration)
• saturation_temp
• ambient_temp
• orifice_pressure

MAO/AOS/M1 - Weak solder connection in dilution flow meter comport cable

The dilution flow meter reading was erratic. Plots of the data suggest that the flow 
varied by about 5%. Problem was corrected when wire was re-soldered.

• Computed concentration(concentration)

MAO/CPC/M1 - Instrument site maintenance. Not sampling ambient air

Data sampling inside air.

• laser_current
• nozzle_pressure
• cabinet_temp
• condensation_temp
• optics_temp
• Computed concentration(concentration)
• saturation_temp
• ambient_temp
• orifice_pressure

MAO/CCN/CPC/NEPHELOMETER/PSAP/M1 - Pump failure

Pump failed, no flow through instruments.

• laser_current
• nozzle_pressure
• cabinet_temp
• condensation_temp
• optics_temp
• Computed concentration(concentration)
• saturation_temp
• ambient_temp
• orifice_pressure

MAO/CPC/M1 - Reprocessing Notice (RID 1366)

DATA REPROCESSED.  Data was reprocessed on 20160216 to fix issues noted in the original 
DQR copied below.

-------------------------------------------------------------------------
End to end reprocessing to generate new a1 datastreams is needed so that when the 
harmonization software is released to production, we will be ready with the a1 datastreams that 
are input to the subsequent processing software.

• Altitude above mean sea level(alt)
• laser_current
• base_time
• cabinet_temp
• time
• saturation_temp
• East longitude(lon)
• orifice_pressure
• nozzle_pressure
• condensation_temp
• time_offset
• optics_temp
• Computed concentration(concentration)
• North latitude(lat)
• ambient_temp

MAO/MET/M1 - Relative Humidity and Vapor Pressure Data Spikes

Relative humidity and vapor pressure values occasionally spike during times of high 
humidity

• Vapor pressure mean, calculated(vapor_pressure_mean)
• Humidity, relative, at 2-m height, 1-min avg(rh_mean)

MAO/AOS/M1/S1 - Forest Fire

Smoke from forest burning can be seen on the TSI images rising and then subsequently 
moving over the site during this period.  Many of the AOS instruments observed a sharp spike 
in data values.

October 4-8 multiple fires in the area resulted in hazy conditions during this entire 
period.

Most notable in the following instruments and variables

ACSM - Total Organics
AETH - Black Carbon Concentrations at all wavelengths
CCN100 - Spike in number concentrations occurred a few hours after the smoke plume
CLAP3W - Absorption Coefficient
CPC - Similar to the CCN100, spike in particle concentration occurred a few hours later
CPCF - Particle Concentration
CPCU - Particle Concentration
NEPHELOMETERS - Scattering/Backscattering Coeff
PSAP3W - Absorption Coefficient
SMPS - Concentration and Size Distribution
UHSAS - Size Distribution

• Computed concentration(concentration)

MAO/CPC/M1 - Pump failure

There was a pump failure and data declined to 0.

• laser_current
• nozzle_pressure
• cabinet_temp
• condensation_temp
• optics_temp
• Computed concentration(concentration)
• saturation_temp
• ambient_temp
• orifice_pressure

MAO/AOS/CCN/CLAP/CPC/NEPHELOMETER/PSAP/M1 - Reprocess: Dilution flow calibration update

Dilution flow calibrations are incorrect. Dilution flow corrections need to be applied to 
b1 data.

Flow: 11.1 lpm 2015-02-19 04:19:12 to 2015-03-02 21:21:36 UTC
Flow: 9.75 lpm 2015-05-15 00:00:00 to 2015-07-01 23:59:59 UTC
Flow: 3.7178 slpm 2015-07-01 00:00:00 to 2015-11-08 23:59:59 UTC
Flow: 9.324 slpm 2015-11-08 00:00:00 UTC to 2015-12-01 23:59:59 UTC

• qc_concentration
• Computed concentration(concentration)
• East longitude(lon)
• cpc_flow
• time_offset
• time
• time_bounds
• dilution_correction_factor
• f2_flags
• Altitude above mean sea level(alt)
• North latitude(lat)
• base_time