Data Quality Reports for Session: 149665 User: yeonii1v Completed: 04/25/2013


TABLE OF CONTENTS

DQR IDSubjectData Streams Affected
D000608.18TWP/C2/Sonde Missing DatatwpsondewnpnC2.a0, twpsondewnpnC2.a1, twpsondeC2.00, twpsondewnpnC2.00
D000615.10TWP/SONDE/C2 - Missing WindstwpsondewnpnC2.a1, twpsondewnpnC2.a0
D000615.6TWP/C2/Balloon Soundings: Missing FlightstwpsondewnpnC2.a1, twpsondewnpnC2.a0
D000622.3TWP/C1 - Incorrect elevation reported in Manus DatatwpsondewnpnC1.a1
D000718.13TWP/C1/Balloon Soundings Maximum AltitudetwpsondewnpnC1.a1, twpsondewnpnC1.a0
D000718.14TWP/C1/Balloon Soundings Maximum AltitudetwpsondewnpnC1.a1, twpsondewnpnC1.a0
D000718.15TWP/C1/Balloon Soundings Maximum AltitudetwpsondewnpnC1.a1, twpsondewnpnC1.a0
D000718.16TWP/C1/Balloon Soundings Maximum AltitudetwpsondewnpnC1.a1, twpsondewnpnC1.a0
D000718.18TWP/C1/Balloon Soundings Maximum AltitudetwpsondewnpnC1.a1, twpsondewnpnC1.a0
D000719.1TWP/C1 - Generator ProblemtwpsondewnpnC1.a0, twpmfrsrC1.a0, twpsondewnpnC1.a1, twpmfrsrC1.b1, twpvceil25kC1.a1,
twpvceil25kC1.b1
D020613.10TWP/C2 InstallationtwpsondewnpnC2.a0, twpsondewnpnC2.a1, twpsondewnpnC2.00
D020620.66TWP/C1 - Incorrect elevation reported in Manus DatatwpsondewnpnC1.a1
D021206.1TWP/SONDE/C2 - Broken Temperature SensortwpsondewnpnC2.a1, twpsondewnpnC2.b1
D021229.1TWP/SONDE/C1 - Broken Temperature SensortwpsondewnpnC1.a1, twpsondewnpnC1.b1
D021231.2TWP/Sonde/C1 - Bad RH ValuestwpsondewnpnC1.a1, twpsondewnpnC1.b1
D030419.1TWP/SONDE/C2 - Bad RH Data (AIRS Validation Sonde)twpsondewnpnC2.a1, twpsondewnpnC2.b1
D030427.2TWP/SONDE/C1 - Questionable RHtwpsondewnpnC1.a1, twpsondewnpnC1.b1
D030503.1TWP/SONDE/C1 - Bad RHtwpsondewnpnC1.a1, twpsondewnpnC1.b1
D030603.3TWP/SONDE/C1 - Broken temperature sensortwpsondewnpnC1.b1, twpsondewnpnC1.a1
D030608.4TWP/SONDE/C2 - Failure of RH sensortwpsondewnpnC2.b1, twpsondewnpnC2.a1
D031008.1TWP/SONDE/C2 - Strange problem with data -twpsondeC2.00, twpsondewnpnC2.00, twpsondewnpnC2.b1
D031231.1TWP/SONDE/C2 - RH sensor badtwpsondewnpnC2.b1
D040127.3TWP/SONDE/C2 - Broken temperature sensorstwpsondewnpnC2.b1
D040208.2TWP/SONDE/C2 - Questionable rH datatwpsondewnpnC2.b1
D040219.4TWP/SONDE/C2 - Bad RH sensortwpsondewnpnC2.b1
D040228.1TWP/SONDE/C1 - Broken temperature sensortwpsondewnpnC1.b1
D040228.3TWP/SONDE/C1 - Bad RH sensorstwpsondewnpnC1.b1
D040425.1TWP/SONDE/C2 - Bad RH values alofttwpsondewnpnC2.b1
D040530.1TWP/SONDE/C1 - Bad RH sensortwpsondewnpnC1.a1, twpsondewnpnC1.b1
D040606.1TWP/SONDE/C1 - Bad RH at beginning of soundingtwpsondewnpnC1.b1
D040627.1TWP/SONDE/C1 - Bad RH at beginning of soundingtwpsondewnpnC1.b1
D040627.2TWP/SONDE/C1 - Bad RH in short interval alofttwpsondewnpnC1.b1
D040711.1TWP/SONDE/C1 - Bad RH at beginning of soundingtwpsondewnpnC1.b1
D040711.2TWP/SONDE/C2 - RH sensor failure near surfacetwpsondewnpnC2.b1
D040815.1TWP/SONDE/C2 - Operator used wrong calibration tapetwpsondewnpnC2.b1
D040921.1TWP/SONDE/C2 - RH sensor failure below 9kmtwpsondewnpnC2.b1
D040921.2TWP/SONDE/C2 - Bad RH values alofttwpsondewnpnC2.b1
D041011.3TWP/SONDE/C1 - Bad RH at beginning of soundingtwpsondewnpnC1.b1
D050105.1TWP/SONDE/C1 - Bad RH at beginning of soundingtwpsondewnpnC1.b1
D050201.2TWP/SONDE/C1 - Bad RH at beginning of soundingtwpsondewnpnC1.b1
D050913.3TWP/SONDE/C2 - Bad RH sensortwpsondewnpnC2.b1
D051122.2TWP/SONDE/C2 - Broken temperature sensortwpsondewnpnC2.b1
D051219.2TWP/SONDE/C2 - Broken temperature sensortwpsondewnpnC2.b1
D060308.1TWP/SONDE/C2 - Broken temperature sensortwpsondewnpnC2.b1
D060403.2TWP/SONDE/C2 - Broken temperature sensortwpsondewnpnC2.b1
D060418.1TWP/SONDE/C2 - Bad RH in lower 8kmtwpsondewnpnC2.b1
D070308.3TWP/SONDE/C2 - Surface Temperature IncorrecttwpsondewnpnC2.b1
D070308.4TWP/SONDE/C2 - Surface RH value incorrecttwpsondewnpnC2.b1
D070313.2TWP/SONDE/C2 - Surface RH value incorrecttwpsondewnpnC2.b1
D070313.3TWP/SONDE/C1 - Surface RH value incorrecttwpsondewnpnC1.b1
D070329.2TWP/SONDE/C2 - Surface RH Value incorrecttwpsondewnpnC2.b1
D070404.1TWP/SONDE/C2 - Surface RH too hightwpsondewnpnC2.b1
D070428.1TWP/SONDE/C2 - Broken temperature sensor at launchtwpsondewnpnC2.b1
D070501.2TWP/SONDE/C2 - Broken temperature sensor at launchtwpsondewnpnC2.b1
D070920.2TWP/SONDE/C2 - Failure of RH sensortwpsondewnpnC2.b1
D080925.1TWP/SONDE/C2 - Bad RH values throughout soundingtwpsondewnpnC2.b1
D081114.1TWP/SONDE/C2 - Defective Temperature SensortwpsondewnpnC2.b1
D090224.4TWP/SONDE/C2 - Suspect RH valuestwpsondewnpnC2.b1
D090629.3TWP/SONDE/C1 - Wind data missingtwpsondewnpnC1.b1
D090629.4TWP/SONDE/C2 - Wind data missingtwpsondewnpnC2.b1
D120427.2TWP/SONDE/C2 - Incorrect latitudetwpsondewnpnC2.b1
D120430.1TWP/SONDE/C2 - Missing datatwpsondewnpnC2.b1


DQRID : D000608.18
Start DateStart TimeEnd DateEnd Time
12/22/1998000003/03/19992359
Subject:
TWP/C2/Sonde Missing Data
DataStreams:twpsondewnpnC2.a0, twpsondewnpnC2.a1, twpsondeC2.00, twpsondewnpnC2.00
Description:
There were no sondes launced during this period because there was
no helium on site and the hydrogen generator was not working.  The
hydrogen generator was repaired and launches resumed.
Measurements:twpsondewnpnC2.00:
  • Raw data stream - documentation not supported

twpsondeC2.00:
  • Raw data stream - documentation not supported

twpsondewnpnC2.a1:
  • lat
  • base_time
  • Eastward Wind Component(u_wind)
  • Northward Wind Component(v_wind)
  • wstat
  • Dry Bulb Temperature(tdry)
  • Mean Wind Speed(wspd)
  • Wind Direction(deg)
  • alt
  • Dewpoint Temperature(dp)
  • asc
  • Humidity, relative(rh)
  • lon
  • time_offset
  • Pressure, atmospheric, constant value of model level, RUC model output(pres)

twpsondewnpnC2.a0:
  • lon
  • Pressure, atmospheric, constant value of model level, RUC model output(pres)
  • wstat
  • Dewpoint Temperature(dp)
  • Humidity, relative(rh)
  • alt
  • asc
  • base_time
  • time_offset
  • Wind Direction(deg)
  • lat
  • Mean Wind Speed(wspd)
  • Dry Bulb Temperature(tdry)


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DQRID : D000615.10
Start DateStart TimeEnd DateEnd Time
11/26/1998000012/22/19982359
Subject:
TWP/SONDE/C2 - Missing Winds
DataStreams:twpsondewnpnC2.a1, twpsondewnpnC2.a0
Description:
About half of the soundings in November-December exhibited drop-outs
in the winds.  These dropouts were typically over a depth of 1-2 km.
Sometimes the dropout occurred at the surface, sometimes at the top of
the sounding and sometimes in the middle.  These gaps occurred on:

19981126
19981129
19981206
19981209
19981210
19981211
19981212
19981221
19981222
Measurements:twpsondewnpnC2.a1:
  • Mean Wind Speed(wspd)
  • Eastward Wind Component(u_wind)
  • Northward Wind Component(v_wind)

twpsondewnpnC2.a0:
  • Mean Wind Speed(wspd)


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DQRID : D000615.6
Start DateStart TimeEnd DateEnd Time
11/21/1998000011/25/19982359
Subject:
TWP/C2/Balloon Soundings: Missing Flights
DataStreams:twpsondewnpnC2.a1, twpsondewnpnC2.a0
Description:
No sondes were launched during this period for reasons unknown.
Measurements:twpsondewnpnC2.a1:
  • lat
  • base_time
  • Eastward Wind Component(u_wind)
  • Northward Wind Component(v_wind)
  • wstat
  • Dry Bulb Temperature(tdry)
  • Mean Wind Speed(wspd)
  • Wind Direction(deg)
  • alt
  • Dewpoint Temperature(dp)
  • asc
  • Humidity, relative(rh)
  • lon
  • time_offset
  • Pressure, atmospheric, constant value of model level, RUC model output(pres)

twpsondewnpnC2.a0:
  • lon
  • Pressure, atmospheric, constant value of model level, RUC model output(pres)
  • wstat
  • Dewpoint Temperature(dp)
  • Humidity, relative(rh)
  • alt
  • asc
  • base_time
  • time_offset
  • Wind Direction(deg)
  • lat
  • Mean Wind Speed(wspd)
  • Dry Bulb Temperature(tdry)


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DQRID : D000622.3
Start DateStart TimeEnd DateEnd Time
08/28/1997045506/22/20002359
Subject:
TWP/C1 - Incorrect elevation reported in Manus Data
DataStreams:twpsondewnpnC1.a1
Description:
(From Bill Clements) We have been using 6m MSL as the station
elevation of Momote (Manus).  This was based on information
posted near the station barometer in the Momote Weather Service
Office.  It turns out that the official WMO station elevation
for Momote is 4m MSL and the upper air elevation is 5m MSL.

All Manus instruments except the sonde station are at 4m MSL.
The sonde launching station is at 5m MSL.
Measurements:twpsondewnpnC1.a1:
  • alt


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DQRID : D000718.13
Start DateStart TimeEnd DateEnd Time
12/04/1997223912/04/19972240
Subject:
TWP/C1/Balloon Soundings Maximum Altitude
DataStreams:twpsondewnpnC1.a1, twpsondewnpnC1.a0
Description:
Only surface data included in this data file.
Measurements:twpsondewnpnC1.a0:
  • Humidity, relative(rh)
  • lat
  • Dry Bulb Temperature(tdry)
  • Wind Direction(deg)
  • Dewpoint Temperature(dp)
  • asc
  • lon
  • Pressure, atmospheric, constant value of model level, RUC model output(pres)
  • base_time
  • alt
  • Mean Wind Speed(wspd)
  • time_offset
  • wstat

twpsondewnpnC1.a1:
  • Northward Wind Component(v_wind)
  • Eastward Wind Component(u_wind)
  • Dewpoint Temperature(dp)
  • Dry Bulb Temperature(tdry)
  • Humidity, relative(rh)
  • Pressure, atmospheric, constant value of model level, RUC model output(pres)
  • wstat
  • Mean Wind Speed(wspd)
  • time_offset
  • alt
  • Wind Direction(deg)
  • lat
  • base_time
  • asc
  • lon


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DQRID : D000718.14
Start DateStart TimeEnd DateEnd Time
12/08/1997224412/08/19972245
Subject:
TWP/C1/Balloon Soundings Maximum Altitude
DataStreams:twpsondewnpnC1.a1, twpsondewnpnC1.a0
Description:
Only surface data included in this data file.
Measurements:twpsondewnpnC1.a0:
  • Humidity, relative(rh)
  • lat
  • Dry Bulb Temperature(tdry)
  • Wind Direction(deg)
  • Dewpoint Temperature(dp)
  • asc
  • lon
  • Pressure, atmospheric, constant value of model level, RUC model output(pres)
  • base_time
  • alt
  • Mean Wind Speed(wspd)
  • time_offset
  • wstat

twpsondewnpnC1.a1:
  • Northward Wind Component(v_wind)
  • Eastward Wind Component(u_wind)
  • Dewpoint Temperature(dp)
  • Dry Bulb Temperature(tdry)
  • Humidity, relative(rh)
  • Pressure, atmospheric, constant value of model level, RUC model output(pres)
  • wstat
  • Mean Wind Speed(wspd)
  • time_offset
  • alt
  • Wind Direction(deg)
  • lat
  • base_time
  • asc
  • lon


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DQRID : D000718.15
Start DateStart TimeEnd DateEnd Time
12/17/1997221712/17/19972218
Subject:
TWP/C1/Balloon Soundings Maximum Altitude
DataStreams:twpsondewnpnC1.a1, twpsondewnpnC1.a0
Description:
Only surface data included in this data file.
Measurements:twpsondewnpnC1.a0:
  • Humidity, relative(rh)
  • lat
  • Dry Bulb Temperature(tdry)
  • Wind Direction(deg)
  • Dewpoint Temperature(dp)
  • asc
  • lon
  • Pressure, atmospheric, constant value of model level, RUC model output(pres)
  • base_time
  • alt
  • Mean Wind Speed(wspd)
  • time_offset
  • wstat

twpsondewnpnC1.a1:
  • Northward Wind Component(v_wind)
  • Eastward Wind Component(u_wind)
  • Dewpoint Temperature(dp)
  • Dry Bulb Temperature(tdry)
  • Humidity, relative(rh)
  • Pressure, atmospheric, constant value of model level, RUC model output(pres)
  • wstat
  • Mean Wind Speed(wspd)
  • time_offset
  • alt
  • Wind Direction(deg)
  • lat
  • base_time
  • asc
  • lon


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DQRID : D000718.16
Start DateStart TimeEnd DateEnd Time
01/31/1998224101/31/19982242
Subject:
TWP/C1/Balloon Soundings Maximum Altitude
DataStreams:twpsondewnpnC1.a1, twpsondewnpnC1.a0
Description:
Only surface data included in this data file.
Measurements:twpsondewnpnC1.a0:
  • Humidity, relative(rh)
  • lat
  • Dry Bulb Temperature(tdry)
  • Wind Direction(deg)
  • Dewpoint Temperature(dp)
  • asc
  • lon
  • Pressure, atmospheric, constant value of model level, RUC model output(pres)
  • base_time
  • alt
  • Mean Wind Speed(wspd)
  • time_offset
  • wstat

twpsondewnpnC1.a1:
  • Northward Wind Component(v_wind)
  • Eastward Wind Component(u_wind)
  • Dewpoint Temperature(dp)
  • Dry Bulb Temperature(tdry)
  • Humidity, relative(rh)
  • Pressure, atmospheric, constant value of model level, RUC model output(pres)
  • wstat
  • Mean Wind Speed(wspd)
  • time_offset
  • alt
  • Wind Direction(deg)
  • lat
  • base_time
  • asc
  • lon


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DQRID : D000718.18
Start DateStart TimeEnd DateEnd Time
02/16/1998221302/16/19982214
Subject:
TWP/C1/Balloon Soundings Maximum Altitude
DataStreams:twpsondewnpnC1.a1, twpsondewnpnC1.a0
Description:
This sonde only reached a height of 0.3 km.
Measurements:twpsondewnpnC1.a0:
  • Humidity, relative(rh)
  • lat
  • Dry Bulb Temperature(tdry)
  • Wind Direction(deg)
  • Dewpoint Temperature(dp)
  • asc
  • lon
  • Pressure, atmospheric, constant value of model level, RUC model output(pres)
  • base_time
  • alt
  • Mean Wind Speed(wspd)
  • time_offset
  • wstat

twpsondewnpnC1.a1:
  • Northward Wind Component(v_wind)
  • Eastward Wind Component(u_wind)
  • Dewpoint Temperature(dp)
  • Dry Bulb Temperature(tdry)
  • Humidity, relative(rh)
  • Pressure, atmospheric, constant value of model level, RUC model output(pres)
  • wstat
  • Mean Wind Speed(wspd)
  • time_offset
  • alt
  • Wind Direction(deg)
  • lat
  • base_time
  • asc
  • lon


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DQRID : D000719.1
Start DateStart TimeEnd DateEnd Time
11/20/1998000011/27/19980000
Subject:
TWP/C1 - Generator Problem
DataStreams:twpsondewnpnC1.a0, twpmfrsrC1.a0, twpsondewnpnC1.a1, twpmfrsrC1.b1, twpvceil25kC1.a1,
twpvceil25kC1.b1
Description:
On November 18 the generator was turned off due to a fault in the oil
pressure sensor. It had been having trouble for at least a day prior
to the manual shut-down. ADaM, the MPL, and the WSI were also shut
down to prevent an unscheduled power cycle. As a result, there is a block 
of missing data from November 20-27 for all of the instruments except 
those connected to the Zeno loggers (SKYRAD, GNDRAD, SMET).
Measurements:twpsondewnpnC1.a0:
  • Wind Direction(deg)
  • asc
  • Mean Wind Speed(wspd)
  • Humidity, relative(rh)
  • Dry Bulb Temperature(tdry)
  • lon
  • base_time
  • wstat
  • lat
  • Dewpoint Temperature(dp)
  • Pressure, atmospheric, constant value of model level, RUC model output(pres)
  • time_offset
  • alt

twpsondewnpnC1.a1:
  • Pressure, atmospheric, constant value of model level, RUC model output(pres)
  • wstat
  • asc
  • lon
  • Dry Bulb Temperature(tdry)
  • Humidity, relative(rh)
  • Eastward Wind Component(u_wind)
  • Mean Wind Speed(wspd)
  • base_time
  • Northward Wind Component(v_wind)
  • Dewpoint Temperature(dp)
  • time_offset
  • alt
  • Wind Direction(deg)
  • lat

twpvceil25kC1.a1:
  • laser_temperature
  • Normalized corrected relative backscatter(backscatter)
  • lon
  • measurement_parameters
  • base_time
  • alt_highest_signal
  • vertical_visibility
  • alt
  • lat
  • Second lowest cloud base height(second_cbh)
  • Lowest cloud base height detected.(first_cbh)
  • receiver_sensitivity
  • Third cloud base height(third_cbh)
  • range
  • detection_status
  • background_light
  • time_offset
  • sum_backscatter
  • status_flag
  • window_contamination
  • tilt_angle
  • laser_pulse_energy
  • filename
  • status_string

twpvceil25kC1.b1:
  • laser_pulse_energy
  • Second lowest cloud base height(second_cbh)
  • time_offset
  • receiver_sensitivity
  • vertical_visibility
  • filename
  • measurement_parameters
  • status_string
  • background_light
  • sum_backscatter
  • lon
  • status_flag
  • detection_status
  • range
  • laser_temperature
  • Third cloud base height(third_cbh)
  • Lowest cloud base height detected.(first_cbh)
  • alt
  • alt_highest_signal
  • tilt_angle
  • Normalized corrected relative backscatter(backscatter)
  • window_contamination
  • lat
  • base_time

twpmfrsrC1.b1:
  • logger_volt
  • lon
  • alt
  • diffuse_hemisp_broadband
  • base_time
  • cosine_solar_zenith_angle
  • lat
  • Direct Normal Broadband Irradiance(direct_norm_broadband)
  • time_offset
  • callang_flags
  • hemisp_narrowband
  • diffuse_hemisp_narrowband
  • total_hemisp_broadband
  • mfrsr_temp
  • Direct Normal Irradiance, NIMFR(direct_norm_narrowband)

twpmfrsrC1.a0:
  • lat
  • dif6
  • dif5
  • dif7
  • dif2
  • dif1
  • dif4
  • dif3
  • supply_voltage
  • base_time
  • detector_temp
  • alt
  • time_offset
  • tot3
  • tot4
  • lon
  • tot1
  • tot2
  • tot7
  • tot5
  • tot6
  • dirn4
  • dirn3
  • dirn2
  • dirn1
  • dirn7
  • dirn6
  • dirn5


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DQRID : D020613.10
Start DateStart TimeEnd DateEnd Time
11/05/1998224911/19/19982359
Subject:
TWP/C2  Installation
DataStreams:twpsondewnpnC2.a0, twpsondewnpnC2.a1, twpsondewnpnC2.00
Description:
The Nauru ARCS was installed during the period September-November
1998.  Data were being collected by the end of October, but for the
first several weeks of November, the site was undergoing considerable
change, so data from that period should be used with caution.  The
official site dedication occured on November 20.  Most on-site
activity ended following the dedication so we will consider November
20 to be the beginning of the Nauru operations.  The last members of
the installation team left Nauru on November 24.
Measurements:twpsondewnpnC2.00:
  • Raw data stream - documentation not supported

twpsondewnpnC2.a1:
  • lat
  • base_time
  • Eastward Wind Component(u_wind)
  • Northward Wind Component(v_wind)
  • wstat
  • Dry Bulb Temperature(tdry)
  • Mean Wind Speed(wspd)
  • Wind Direction(deg)
  • alt
  • Dewpoint Temperature(dp)
  • asc
  • Humidity, relative(rh)
  • lon
  • time_offset
  • Pressure, atmospheric, constant value of model level, RUC model output(pres)

twpsondewnpnC2.a0:
  • lon
  • Pressure, atmospheric, constant value of model level, RUC model output(pres)
  • wstat
  • Dewpoint Temperature(dp)
  • Humidity, relative(rh)
  • alt
  • asc
  • base_time
  • time_offset
  • Wind Direction(deg)
  • lat
  • Mean Wind Speed(wspd)
  • Dry Bulb Temperature(tdry)


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DQRID : D020620.66
Start DateStart TimeEnd DateEnd Time
11/03/1997000006/22/20002359
Subject:
TWP/C1 - Incorrect elevation reported in Manus Data
DataStreams:twpsondewnpnC1.a1
Description:
(From Bill Clements) We have been using 6m MSL as the station
elevation of Momote (Manus).  This was based on information
posted near the station barometer in the Momote Weather Service
Office.  It turns out that the official WMO station elevation
for Momote is 4m MSL and the upper air elevation is 5m MSL.

All Manus instruments except the sonde station are at 4m MSL.
The sonde launching station is at 5m MSL.
Measurements:twpsondewnpnC1.a1:
  • alt


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DQRID : D021206.1
Start DateStart TimeEnd DateEnd Time
12/27/2002234412/28/20020131
03/28/2003021403/28/20030339
04/22/2003234104/23/20030122
04/23/2003112904/23/20031308
04/24/2003235804/25/20030126
06/02/2003113406/02/20031321
06/06/2003233506/07/20030057
06/09/2003234006/10/20030116
06/11/2003234506/12/20030112
06/14/2003113306/14/20031300
06/26/2003233506/27/20030114
09/27/2003232709/28/20030132
11/23/2002233011/24/20020108
11/25/2002233711/26/20020001
12/16/2002113812/16/20021248
12/22/2002013612/22/20020204
12/24/2002233112/25/20020112
09/18/2002113709/18/20021301
09/24/2002012909/24/20020204
09/24/2002022009/24/20020352
Subject:
TWP/SONDE/C2  - Broken Temperature Sensor
DataStreams:twpsondewnpnC2.a1, twpsondewnpnC2.b1
Description:
The temperature sensors on these radiosondes broke at launch.  All
the temperature-related data are incorrect.
Measurements:twpsondewnpnC2.a1:
  • Dry Bulb Temperature(tdry)
  • Dewpoint Temperature(dp)
  • Humidity, relative(rh)

twpsondewnpnC2.b1:
  • Humidity, relative(rh)
  • Dewpoint Temperature(dp)
  • Dry Bulb Temperature(tdry)


Back To Table of Contents

DQRID : D021229.1
Start DateStart TimeEnd DateEnd Time
09/18/2002233409/19/20020111
09/21/2002233009/22/20020059
10/01/2002234910/02/20020117
10/13/2002113910/13/20021303
10/18/2002235810/19/20020113
05/23/2003233005/24/20030135
06/14/2003233006/15/20030147
06/22/2003115906/22/20031332
06/22/2003234906/23/20030110
06/23/2003114606/23/20031323
06/25/2003234206/26/20030118
06/28/2003233006/29/20030056
06/29/2003113406/29/20031312
Subject:
TWP/SONDE/C1  - Broken Temperature Sensor
DataStreams:twpsondewnpnC1.a1, twpsondewnpnC1.b1
Description:
The temperature sensor on these radiosondes broke after launch.
All the temperature related data are incorrect.
Measurements:twpsondewnpnC1.a1:
  • Humidity, relative(rh)
  • Dewpoint Temperature(dp)
  • Dry Bulb Temperature(tdry)

twpsondewnpnC1.b1:
  • Humidity, relative(rh)
  • Dewpoint Temperature(dp)
  • Dry Bulb Temperature(tdry)


Back To Table of Contents

DQRID : D021231.2
Start DateStart TimeEnd DateEnd Time
12/21/2002233612/22/20020119
Subject:
TWP/Sonde/C1 - Bad RH Values
DataStreams:twpsondewnpnC1.a1, twpsondewnpnC1.b1
Description:
The RH values from the surface to approximately 11.5 km oscillate between reasonable 
values and zero.  This is apparently caused by a failure in the RH sensor heating process.  
Although the oscillation stops when the heating stops (at temperatures below ~ -45degC) I 
think the values must be viewed as suspect.
Measurements:twpsondewnpnC1.a1:
  • Humidity, relative(rh)
  • Dewpoint Temperature(dp)

twpsondewnpnC1.b1:
  • Humidity, relative(rh)
  • Dewpoint Temperature(dp)


Back To Table of Contents

DQRID : D030419.1
Start DateStart TimeEnd DateEnd Time
04/13/2003012404/13/20030200
Subject:
TWP/SONDE/C2 - Bad RH Data (AIRS Validation Sonde)
DataStreams:twpsondewnpnC2.a1, twpsondewnpnC2.b1
Description:
The RH sensor heating circuit failed on this sonde.  This results in
oscillation of reported RH between reasonable values and values near zero.
This was an AIRS validation sounding.
Measurements:twpsondewnpnC2.a1:
  • Dewpoint Temperature(dp)
  • Humidity, relative(rh)

twpsondewnpnC2.b1:
  • Humidity, relative(rh)
  • Dewpoint Temperature(dp)


Back To Table of Contents

DQRID : D030427.2
Start DateStart TimeEnd DateEnd Time
04/08/2003234704/09/20030003
Subject:
TWP/SONDE/C1 - Questionable RH
DataStreams:twpsondewnpnC1.a1, twpsondewnpnC1.b1
Description:
It appears that the RH sensor heating circuit failed during this portion of the sounding 
(approximately between 5km and 10km).  The RH oscillates rapidly between low (~5 %RH) and 
not so low (~50 %RH) and the oscillation seems to stop when the temperature is below ~35 
degC.  According to Vaisala these are symptoms of failure in the ASIC (application 
specific integrated circuit) that controls the heating.
Measurements:twpsondewnpnC1.a1:
  • Humidity, relative(rh)
  • Dewpoint Temperature(dp)

twpsondewnpnC1.b1:
  • Humidity, relative(rh)
  • Dewpoint Temperature(dp)


Back To Table of Contents

DQRID : D030503.1
Start DateStart TimeEnd DateEnd Time
04/29/2003112304/29/20031205
Subject:
TWP/SONDE/C1 - Bad RH
DataStreams:twpsondewnpnC1.a1, twpsondewnpnC1.b1
Description:
The RH sensor heating circuit failed on this radiosonde.  The RH-related values obtained 
between 0 and 10000 meters oscillate between near-zero and reasonable ambient values.  
Above 10000 the RH values are likely correct.
Measurements:twpsondewnpnC1.a1:
  • Humidity, relative(rh)
  • Dewpoint Temperature(dp)

twpsondewnpnC1.b1:
  • Humidity, relative(rh)
  • Dewpoint Temperature(dp)


Back To Table of Contents

DQRID : D030603.3
Start DateStart TimeEnd DateEnd Time
05/23/2003233005/24/20030135
Subject:
TWP/SONDE/C1 - Broken temperature sensor
DataStreams:twpsondewnpnC1.b1, twpsondewnpnC1.a1
Description:
The temperature sensor on this radiosonde broke after launch.  All the temperature-related 
data are incorrect.
Measurements:twpsondewnpnC1.a1:
  • Humidity, relative(rh)
  • Dewpoint Temperature(dp)
  • Dry Bulb Temperature(tdry)

twpsondewnpnC1.b1:
  • Humidity, relative(rh)
  • Dewpoint Temperature(dp)
  • Dry Bulb Temperature(tdry)


Back To Table of Contents

DQRID : D030608.4
Start DateStart TimeEnd DateEnd Time
06/03/2003233906/04/20030016
Subject:
TWP/SONDE/C2  - Failure of RH sensor
DataStreams:twpsondewnpnC2.b1, twpsondewnpnC2.a1
Description:
It appears that the RH sensor heating circuit failed during this sounding.  The RH 
oscillates rapidly between low (~0 %RH) and not so low (ambient %RH) and the oscillation seems 
to stop when the temperature is below ~35 degC.  According to Vaisala these are symptoms 
of failure in the ASIC (application specific integrated circuit) that controls the heating.
Measurements:twpsondewnpnC2.a1:
  • Dewpoint Temperature(dp)
  • Humidity, relative(rh)

twpsondewnpnC2.b1:
  • Humidity, relative(rh)
  • Dewpoint Temperature(dp)


Back To Table of Contents

DQRID : D031008.1
Start DateStart TimeEnd DateEnd Time
10/02/2003023210/02/20030300
Subject:
TWP/SONDE/C2 - Strange problem with data -
DataStreams:twpsondeC2.00, twpsondewnpnC2.00, twpsondewnpnC2.b1
Description:
This is very strange.  The data has what appears to be a pressure jump at launch (from 
1007.2 to 956.5 hPa) but the sounding temperature and RH data clearly look to be 
interpolated between the surface and tropopause.  By examining the absolutely raw data, I found that 
the system assigned an elapsed time of 408 seconds (since system start up) to the launch 
point, but there is no raw data between 410 and 532 seconds.  The raw pressure value at 
410 seconds is 1007.6 hPa and that at 532 seconds is 40.9 hPa!  Unless this sounding was 
done by using a rocket-powered balloon (maybe even then), it would be impossible for the 
sonde to get to 40.9 hPa in 2 minutes.  Because the apparent gap is only two minutes, the 
system was able to interpolate but is not sophisticated enough to understand that the 
limits of the interpolation are unreasonable.

I can't imagine what went wrong - I've not seen anything like this before.
Measurements:twpsondewnpnC2.00:
  • Raw data stream - documentation not supported

twpsondeC2.00:
  • Raw data stream - documentation not supported

twpsondewnpnC2.b1:
  • lon
  • Eastward Wind Component(u_wind)
  • Northward Wind Component(v_wind)
  • asc
  • Humidity, relative(rh)
  • base_time
  • Dewpoint Temperature(dp)
  • time_offset
  • wstat
  • Wind Direction(deg)
  • alt
  • Mean Wind Speed(wspd)
  • Pressure, atmospheric, constant value of model level, RUC model output(pres)
  • lat
  • Dry Bulb Temperature(tdry)


Back To Table of Contents

DQRID : D031231.1
Start DateStart TimeEnd DateEnd Time
10/22/2003002510/22/20030155
10/22/2003234010/23/20030121
Subject:
TWP/SONDE/C2 - RH sensor bad
DataStreams:twpsondewnpnC2.b1
Description:
It appears that the RH sensor heating circuits failed during these
soundings.  The RH oscillates rapidly between low (~0 %RH) and not
so low (ambient %RH) and the oscillation seems to stop when the
temperature is below ~35 degC.  According to Vaisala these are
symptoms of failure in the ASIC (application specific integrated
circuit) that controls the heating.
Measurements:twpsondewnpnC2.b1:
  • Humidity, relative(rh)
  • Dewpoint Temperature(dp)


Back To Table of Contents

DQRID : D040127.3
Start DateStart TimeEnd DateEnd Time
12/21/2003005612/21/20030126
12/21/2003115512/21/20031344
12/23/2003004212/23/20030212
12/23/2003113712/23/20031259
12/23/2003234212/24/20030132
01/08/2004113501/08/20041309
01/09/2004115701/09/20041342
01/09/2004135901/09/20041537
01/12/2004234201/13/20040214
10/13/2003004010/13/20030203
11/08/2003233511/09/20030215
11/18/2003120511/18/20031340
11/19/2003115611/19/20031346
11/21/2003004411/21/20030113
12/20/2003122512/20/20031408
01/16/2004140901/16/20041548
01/16/2004233701/17/20040109
01/18/2004113501/18/20041256
01/19/2004022301/19/20040346
01/19/2004232901/20/20040157
01/21/2004125201/21/20041400
01/22/2004005201/22/20040227
01/23/2004113701/23/20041319
01/26/2004120201/26/20040146
02/17/2004140602/17/20041536
02/26/2004122102/26/20041350
03/09/2004114503/09/20041315
03/14/2004113103/14/20041300
03/22/2004113403/22/20041300
03/29/2004233203/30/20040047
03/30/2004233403/31/20040059
04/11/2004234804/12/20040120
05/01/2004233505/02/20040110
05/02/2004233605/03/20040109
05/13/2004233405/14/20040112
05/14/2004140605/14/20041411
06/07/2004022406/07/20040351
06/25/2004114606/25/20041328
07/02/2004005907/02/20040217
07/20/2004022007/20/20040358
07/24/2004123507/24/20041355
08/22/2004114408/22/20041207
09/08/2004142509/08/20041605
09/08/2004233809/08/20042345
10/18/2004234610/19/20040128
11/29/2004232111/30/20040105
12/08/2004114312/08/20041306
12/30/2004113012/30/20041239
Subject:
TWP/SONDE/C2 - Broken temperature sensors
DataStreams:twpsondewnpnC2.b1
Description:
The temperature sensors on these radiosondes broke after launch.  All
temperature-related data are incorrect.
Measurements:twpsondewnpnC2.b1:
  • Humidity, relative(rh)
  • Dewpoint Temperature(dp)
  • Dry Bulb Temperature(tdry)


Back To Table of Contents

DQRID : D040208.2
Start DateStart TimeEnd DateEnd Time
02/04/2004114702/04/20041337
Subject:
TWP/SONDE/C2  - Questionable rH data
DataStreams:twpsondewnpnC2.b1
Description:
It appears that the RH sensor heating circuit failed during this sounding.  The RH 
oscillates rapidly between low (~0 %RH) and not so low (ambient %RH) and the oscillation seems 
to stop when the temperature is below ~35 degC.  According to Vaisala these are symptoms 
of failure in the ASIC (application specific integrated circuit) that controls the heating.
Measurements:twpsondewnpnC2.b1:
  • Humidity, relative(rh)
  • Dewpoint Temperature(dp)


Back To Table of Contents

DQRID : D040219.4
Start DateStart TimeEnd DateEnd Time
02/18/2004003502/18/20040205
Subject:
TWP/SONDE/C2  - Bad RH sensor
DataStreams:twpsondewnpnC2.b1
Description:
It appears that the RH sensor heating circuit failed during this sounding.  The RH 
oscillates rapidly between low (~0 %RH) and not so low (ambient %RH) and the oscillation seems 
to stop when the temperature is below ~35 degC.  According to Vaisala these are symptoms 
of failure in the ASIC (application specific integrated circuit) that controls the heating.
Measurements:twpsondewnpnC2.b1:
  • Humidity, relative(rh)
  • Dewpoint Temperature(dp)


Back To Table of Contents

DQRID : D040228.1
Start DateStart TimeEnd DateEnd Time
02/07/2004234202/08/20040115
02/09/2004113302/09/20041233
04/05/2004233204/06/20040105
04/22/2004115604/22/20041317
04/24/2004113004/24/20041312
04/29/2004113704/29/20041312
04/30/2004233605/01/20040112
05/03/2004233105/04/20040105
05/05/2004113505/05/20041319
05/07/2004113205/07/20041315
05/11/2004114205/11/20041311
05/12/2004114505/12/20041206
05/18/2004113005/18/20041321
07/10/2004113007/11/20041255
07/13/2004113907/13/20041320
07/16/2004234607/17/20040107
07/22/2004235507/23/20040140
07/26/2004234107/27/20040115
08/14/2004233008/15/20040104
08/22/2004233508/23/20040105
09/05/2004234009/06/20040119
09/14/2004232809/14/20042329
09/17/2004233209/18/20040102
10/28/2004233610/29/20040057
11/28/2004235211/29/20040044
Subject:
TWP/SONDE/C1 - Broken temperature sensor
DataStreams:twpsondewnpnC1.b1
Description:
The temperature sensor on these radiosondes broke after launch
All the temperature-related data are incorrect.
Measurements:twpsondewnpnC1.b1:
  • Humidity, relative(rh)
  • Dewpoint Temperature(dp)
  • Dry Bulb Temperature(tdry)


Back To Table of Contents

DQRID : D040228.3
Start DateStart TimeEnd DateEnd Time
02/06/2004234102/06/20040130
Subject:
TWP/SONDE/C1 - Bad RH sensors
DataStreams:twpsondewnpnC1.b1
Description:
It appears that the RH sensor heating circuit failed during this portion of the sounding 
(approximately between 0km and 12km).  The RH oscillates rapidly in a 20% range and the 
oscillation seems to stop when the temperature is below ~45 degC.  These are symptoms of 
failure in the ASIC (application specific integrated circuit) that controls the heating.
Measurements:twpsondewnpnC1.b1:
  • Humidity, relative(rh)
  • Dewpoint Temperature(dp)


Back To Table of Contents

DQRID : D040425.1
Start DateStart TimeEnd DateEnd Time
04/21/2004123204/21/20041248
Subject:
TWP/SONDE/C2 - Bad RH values aloft
DataStreams:twpsondewnpnC2.b1
Description:
It appears that the RH sensor heating circuit on this sonde failed about 24 minutes into 
the flight.  The RH values look reasonable, though somewhat noisy, from the surface to 
approximately 6.9 km (439 hPa) at which point they begin to oscillate between 0 and 100 %.  
This behavior stops when the sonde reaches approximately 11.5km (232 hPa) when the air 
temperature drops below -40 degC.  The oscillation stops at that point, though the RH 
remains higher than might be expected even under supersaturated conditions.
Measurements:twpsondewnpnC2.b1:
  • Humidity, relative(rh)
  • Dewpoint Temperature(dp)


Back To Table of Contents

DQRID : D040530.1
Start DateStart TimeEnd DateEnd Time
05/28/2003233005/29/20030010
Subject:
TWP/SONDE/C1 - Bad RH sensor
DataStreams:twpsondewnpnC1.a1, twpsondewnpnC1.b1
Description:
It appears that the RH sensor heating circuit failed during this portion of the sounding 
(approximately between the surface and 11km).  The RH oscillates rapidly between low (~0 
%RH) and high (~80 %RH) and the oscillation seems to stop when the temperature is below 
~40 degC.  According to Vaisala these are symptoms of failure in the ASIC (application 
specific integrated circuit) that controls the heating.
Measurements:twpsondewnpnC1.a1:
  • Humidity, relative(rh)
  • Dewpoint Temperature(dp)

twpsondewnpnC1.b1:
  • Humidity, relative(rh)
  • Dewpoint Temperature(dp)


Back To Table of Contents

DQRID : D040606.1
Start DateStart TimeEnd DateEnd Time
06/03/2004113206/03/20041212
Subject:
TWP/SONDE/C1 - Bad RH at beginning of sounding
DataStreams:twpsondewnpnC1.b1
Description:
It appears that the RH sensor heating circuit failed during this portion of the sounding 
(approximately between 0km and 11km).  The RH oscillates rapidly between low (~15 %RH) and 
not so low (~50 %RH) and the oscillation seems to stop when the temperature is below ~40 
degC.  According to Vaisala these are symptoms of failure in the ASIC (application 
specific integrated circuit) that controls the heating.
Measurements:twpsondewnpnC1.b1:
  • Humidity, relative(rh)
  • Dewpoint Temperature(dp)


Back To Table of Contents

DQRID : D040627.1
Start DateStart TimeEnd DateEnd Time
06/04/2004001006/23/20042330
Subject:
TWP/SONDE/C1 - Bad RH at beginning of sounding
DataStreams:twpsondewnpnC1.b1
Description:
It appears that the RH sensor heating circuit failed during this portion of the sounding 
(approximately between 0km and 11km).  The RH oscillates rapidly between low (~0 %RH) and 
not so low (~80 %RH) and the oscillation seems to stop when the temperature is below ~40 
degC.  According to Vaisala these are symptoms of failure in the ASIC (application 
specific integrated circuit) that controls the heating.
Measurements:twpsondewnpnC1.b1:
  • Humidity, relative(rh)
  • Dewpoint Temperature(dp)


Back To Table of Contents

DQRID : D040627.2
Start DateStart TimeEnd DateEnd Time
06/21/2004001006/21/20040011
Subject:
TWP/SONDE/C1  - Bad RH in short interval aloft
DataStreams:twpsondewnpnC1.b1
Description:
It appears that the RH sensor heating circuit on this sonde failed about 31 minutes into 
the flight.  The RH values look reasonable from the surface to approximately 8.25 km at 
which point they begin to oscillate between 0 and 40%.  This behavior stops when the sonde 
reaches approximately 11.0km when the air temperature drops below -40 degC.  The 
oscillation stops at that point, though the RH remains higher than might be expected even under 
supersaturated conditions.
Measurements:twpsondewnpnC1.b1:
  • Humidity, relative(rh)
  • Dewpoint Temperature(dp)


Back To Table of Contents

DQRID : D040711.1
Start DateStart TimeEnd DateEnd Time
06/30/2004113006/30/20041204
Subject:
TWP/SONDE/C1 - Bad RH at beginning of sounding
DataStreams:twpsondewnpnC1.b1
Description:
It appears that the RH sensor heating circuit failed during this portion of the sounding 
(approximately between 0km and 11km).  The RH oscillates rapidly between low (~2 %RH) and 
not so low (~90 %RH) and the oscillation seems to stop when the temperature is below ~40 
degC.  According to Vaisala these are symptoms of failure in the ASIC (application 
specific integrated circuit) that controls the heating.
Measurements:twpsondewnpnC1.b1:
  • Humidity, relative(rh)
  • Dewpoint Temperature(dp)


Back To Table of Contents

DQRID : D040711.2
Start DateStart TimeEnd DateEnd Time
07/10/2004123807/10/20041315
Subject:
TWP/SONDE/C2  - RH sensor failure near surface
DataStreams:twpsondewnpnC2.b1
Description:
It appears that the RH sensor heating circuit failed during this sounding.  The RH 
oscillates rapidly between low (~0 %RH) and not so low (ambient %RH) and the oscillation seems 
to stop when the temperature is below ~35 degC.  According to Vaisala these are symptoms 
of failure in the ASIC (application specific integrated circuit) that controls the heating.
Measurements:twpsondewnpnC2.b1:
  • Humidity, relative(rh)
  • Dewpoint Temperature(dp)


Back To Table of Contents

DQRID : D040815.1
Start DateStart TimeEnd DateEnd Time
08/12/2004004408/12/20040233
Subject:
TWP/SONDE/C2 - Operator used wrong calibration tape
DataStreams:twpsondewnpnC2.b1
Description:
It appears as though the opperator used the wrong calibration tape for this sounding.  The 
primary symptom is a jump in temperature from a surface value of 30.1 degC to the first 
value aloft of 61.0 degC.  Secondly, the recorded serial number for this sounding is 
Z1430179 which is the same serial number recorded for the previous sounding.

This problem points to three failures of procedure (I have notified TWP site ops by 
e-mail).  The first failure is using the wrong tape. The second failure is not checking the 
radiosonde values before launch which relates to the third failure of not entering the 
radiosonde values as the surface values of the sounding.
Measurements:twpsondewnpnC2.b1:
  • lon
  • Eastward Wind Component(u_wind)
  • Northward Wind Component(v_wind)
  • asc
  • Humidity, relative(rh)
  • base_time
  • Dewpoint Temperature(dp)
  • time_offset
  • wstat
  • Wind Direction(deg)
  • alt
  • Mean Wind Speed(wspd)
  • Pressure, atmospheric, constant value of model level, RUC model output(pres)
  • lat
  • Dry Bulb Temperature(tdry)


Back To Table of Contents

DQRID : D040921.1
Start DateStart TimeEnd DateEnd Time
09/16/2004113509/16/20041210
Subject:
TWP/SONDE/C2  - RH sensor failure below 9km
DataStreams:twpsondewnpnC2.b1
Description:
It appears that the RH sensor heating circuit failed during this sounding.  The RH 
oscillates rapidly between low (~0 %RH) and not so low (ambient %RH) and the oscillation seems 
to stop when the temperature is below ~35 degC.  According to Vaisala these are symptoms 
of failure in the ASIC (application specific integrated circuit) that controls the heating.
Measurements:twpsondewnpnC2.b1:
  • Humidity, relative(rh)
  • Dewpoint Temperature(dp)


Back To Table of Contents

DQRID : D040921.2
Start DateStart TimeEnd DateEnd Time
09/17/2004114509/17/20041216
09/18/2004005809/18/20040133
09/19/2004140809/19/20041447
Subject:
TWP/SONDE/C2 - Bad RH values aloft
DataStreams:twpsondewnpnC2.b1
Description:
It appears that the RH sensor heating circuit on these sondes failed after launch but 
resume proper operation when the ambient temperature dropped below ~40 degC.
Measurements:twpsondewnpnC2.b1:
  • Humidity, relative(rh)
  • Dewpoint Temperature(dp)


Back To Table of Contents

DQRID : D041011.3
Start DateStart TimeEnd DateEnd Time
10/08/2004113110/08/20041200
Subject:
TWP/SONDE/C1 - Bad RH at beginning of sounding
DataStreams:twpsondewnpnC1.b1
Description:
It appears that the RH sensor heating circuit failed during this portion of the sounding 
(approximately between 0km and 11km).  The RH oscillates rapidly between low (~1 %RH) and 
high (~80 %RH).  According to Vaisala these are symptoms of failure in the ASIC 
(application specific integrated circuit) that controls the heating.
Measurements:twpsondewnpnC1.b1:
  • Humidity, relative(rh)
  • Dewpoint Temperature(dp)


Back To Table of Contents

DQRID : D050105.1
Start DateStart TimeEnd DateEnd Time
12/30/2004233012/31/20040108
Subject:
TWP/SONDE/C1 - Bad RH at beginning of sounding
DataStreams:twpsondewnpnC1.b1
Description:
It appears that the RH sensor heating circuit failed during this portion of the sounding 
(approximately between 0km and 11km).  The RH oscillates rapidly between low (~5 %RH) and 
not so low (~70 %RH) and the oscillation seems to stop when the temperature is below ~40 
degC.  According to Vaisala these are symptoms of failure in the ASIC (application 
specific integrated circuit) that controls the heating.
Measurements:twpsondewnpnC1.b1:
  • Humidity, relative(rh)
  • Dewpoint Temperature(dp)


Back To Table of Contents

DQRID : D050201.2
Start DateStart TimeEnd DateEnd Time
01/07/2005233001/08/20050102
Subject:
TWP/SONDE/C1 - Bad RH at beginning of sounding
DataStreams:twpsondewnpnC1.b1
Description:
It appears that the RH sensor heating circuit failed during this portion of the sounding 
(approximately between 0km and 12km).  The RH oscillates rapidly between low (~2 %RH) and 
not so low (~80 %RH) and the oscillation seems to stop when the temperature is below ~40 
degC.  According to Vaisala these are symptoms of failure in the ASIC (application 
specific integrated circuit) that controls the heating.
Measurements:twpsondewnpnC1.b1:
  • Humidity, relative(rh)
  • Dewpoint Temperature(dp)


Back To Table of Contents

DQRID : D050913.3
Start DateStart TimeEnd DateEnd Time
07/03/2005235007/04/20050024
07/10/2005234007/11/20050021
07/19/2005233207/20/20050016
Subject:
TWP/SONDE/C2 - Bad RH sensor
DataStreams:twpsondewnpnC2.b1
Description:
It appears that the RH sensor heating circuit failed during this sounding.  The RH 
oscillates rapidly between low (~0 %RH) and not so low (ambient %RH) and the oscillation seems 
to stop when the temperature is below -50 degC.  According to Vaisala these are symptoms 
of failure in the ASIC (application specific integrated circuit) that controls the heating.
Measurements:twpsondewnpnC2.b1:
  • Humidity, relative(rh)
  • Dewpoint Temperature(dp)


Back To Table of Contents

DQRID : D051122.2
Start DateStart TimeEnd DateEnd Time
11/19/2005233411/20/20050153
11/21/2005233211/22/20050140
Subject:
TWP/SONDE/C2 - Broken temperature sensor
DataStreams:twpsondewnpnC2.b1
Description:
The temperature sensor on this radiosonde broke after launch.  All the temperature-related 
data are incorrect.
Measurements:twpsondewnpnC2.b1:
  • Humidity, relative(rh)
  • Dewpoint Temperature(dp)
  • Dry Bulb Temperature(tdry)


Back To Table of Contents

DQRID : D051219.2
Start DateStart TimeEnd DateEnd Time
12/07/2005115312/07/20051323
Subject:
TWP/SONDE/C2  - Broken temperature sensor
DataStreams:twpsondewnpnC2.b1
Description:
The temperature sensor on this radiosonde broke after launch.  All the temperature-related 
data are incorrect.
Measurements:twpsondewnpnC2.b1:
  • Humidity, relative(rh)
  • Dewpoint Temperature(dp)
  • Dry Bulb Temperature(tdry)


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DQRID : D060308.1
Start DateStart TimeEnd DateEnd Time
01/15/2006114401/15/20061328
01/19/2006131801/19/20061320
01/22/2006114901/22/20061315
02/14/2006005502/14/20060207
02/21/2006023202/21/20060359
Subject:
TWP/SONDE/C2  - Broken temperature sensor
DataStreams:twpsondewnpnC2.b1
Description:
The temperature sensor on this radiosonde broke after launch.  All the temperature-related 
data are incorrect.
Measurements:twpsondewnpnC2.b1:
  • Humidity, relative(rh)
  • Dewpoint Temperature(dp)
  • Dry Bulb Temperature(tdry)


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DQRID : D060403.2
Start DateStart TimeEnd DateEnd Time
03/27/2006004303/27/20060208
Subject:
TWP/SONDE/C2  - Broken temperature sensor
DataStreams:twpsondewnpnC2.b1
Description:
The temperature sensor on this radiosonde broke after launch.  All the temperature-related 
data are incorrect.
Measurements:twpsondewnpnC2.b1:
  • Humidity, relative(rh)
  • Dewpoint Temperature(dp)
  • Dry Bulb Temperature(tdry)


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DQRID : D060418.1
Start DateStart TimeEnd DateEnd Time
04/10/2006024704/10/20060314
Subject:
TWP/SONDE/C2  - Bad RH in lower 8km
DataStreams:twpsondewnpnC2.b1
Description:
It appears that the RH sensor heating circuit failed during this sounding.  The RH 
oscillates rapidly between low (~0 %RH) and not so low (ambient %RH) and the oscillation seems 
to stop when the temperature is below ~35 degC.  According to Vaisala these are symptoms 
of failure in the ASIC (application specific integrated circuit) that controls the heating.
Measurements:twpsondewnpnC2.b1:
  • Humidity, relative(rh)
  • Dewpoint Temperature(dp)


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DQRID : D070308.3
Start DateStart TimeEnd DateEnd Time
01/02/2007112801/02/20071129
Subject:
TWP/SONDE/C2 - Surface Temperature Incorrect
DataStreams:twpsondewnpnC2.b1
Description:
The first two temperature values in the datafile are incorrect.  It appears that the 
observer mis-typed the surface temperature as -27 instead of +27.  The next value was 8 which 
is also incorrect and was caused by the system interpolating from the incorrect surface 
value and what the sonde temperature sensor was reading.
Measurements:twpsondewnpnC2.b1:
  • Dry Bulb Temperature(tdry)


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DQRID : D070308.4
Start DateStart TimeEnd DateEnd Time
01/23/2007113001/23/20071131
Subject:
TWP/SONDE/C2 - Surface RH value incorrect
DataStreams:twpsondewnpnC2.b1
Description:
The surface RH value was incorrect.  It appears the observer mis-typed 70 instead of 80.  
This error also caused the dew point temperature to be incorrect.
Measurements:twpsondewnpnC2.b1:
  • Humidity, relative(rh)
  • Dewpoint Temperature(dp)


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DQRID : D070313.2
Start DateStart TimeEnd DateEnd Time
03/08/2007235003/08/20072353
Subject:
TWP/SONDE/C2 - Surface RH value incorrect
DataStreams:twpsondewnpnC2.b1
Description:
The surface RH was reproted as 78%.  The value should have been in the low 50's.  It 
appears the observer did not allow the sonde to equilibrate to ambient conditions before 
taking the reading.  This error also caused an incorrect dew point.
Measurements:twpsondewnpnC2.b1:
  • Humidity, relative(rh)
  • Dewpoint Temperature(dp)


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DQRID : D070313.3
Start DateStart TimeEnd DateEnd Time
03/08/2007000003/08/20070001
Subject:
TWP/SONDE/C1 - Surface RH value incorrect
DataStreams:twpsondewnpnC1.b1
Description:
The surface RH value of 77% when the value should have been in the low 60's.  It appears 
the observers did not allow the sonde to equilibrate to ambient conditions before 
collecting the surface data.  This error also caused the dew point to be incorrect.
Measurements:twpsondewnpnC1.b1:
  • Humidity, relative(rh)
  • Dewpoint Temperature(dp)


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DQRID : D070329.2
Start DateStart TimeEnd DateEnd Time
03/28/2007231903/28/20072320
Subject:
TWP/SONDE/C2 - Surface RH Value incorrect
DataStreams:twpsondewnpnC2.b1
Description:
The surface value entered by the observers for RH (96%) is incorrect.  At the ascent time 
listed in the .ptu file the readings by the Sonde were around 65%.  This low RH value is 
supported by the nearby SMET tower RH reading of 71.8%.  This also caused the surface dew 
point to be incorrect.
Measurements:twpsondewnpnC2.b1:
  • Humidity, relative(rh)
  • Dewpoint Temperature(dp)


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DQRID : D070404.1
Start DateStart TimeEnd DateEnd Time
04/03/2007233004/03/20072331
Subject:
TWP/SONDE/C2 - Surface RH too high
DataStreams:twpsondewnpnC2.b1
Description:
The surface Rh was entered as 94%.  The ascent time has 72% and this value is supported by 
RH values from the nearby SMET system.  This error also will affect the dew point.
Measurements:twpsondewnpnC2.b1:
  • Humidity, relative(rh)
  • Dewpoint Temperature(dp)


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DQRID : D070428.1
Start DateStart TimeEnd DateEnd Time
04/27/2007114004/27/20071420
Subject:
TWP/SONDE/C2 - Broken temperature sensor at launch
DataStreams:twpsondewnpnC2.b1
Description:
Temperature sensor broken at launch.  All thermodynamic values are incorrect.
Measurements:twpsondewnpnC2.b1:
  • Wind Direction(deg)
  • Humidity, relative(rh)
  • Dewpoint Temperature(dp)


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DQRID : D070501.2
Start DateStart TimeEnd DateEnd Time
04/30/2007235905/01/20070200
Subject:
TWP/SONDE/C2 - Broken temperature sensor at launch
DataStreams:twpsondewnpnC2.b1
Description:
The temperature sensor on this radiosonde broke after launch.  All the temperature-related 
data are incorrect.
Measurements:twpsondewnpnC2.b1:
  • Humidity, relative(rh)
  • Dewpoint Temperature(dp)
  • Dry Bulb Temperature(tdry)


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DQRID : D070920.2
Start DateStart TimeEnd DateEnd Time
03/19/2003122103/19/20031253
08/20/2003234008/21/20030002
Subject:
TWP/SONDE/C2 - Failure of RH sensor
DataStreams:twpsondewnpnC2.b1
Description:
The RH sensor ASIC that controls the sensor heating failed.  As a result the RH at the 
beginning of the sounding oscillates between near-zero and ambient values.  The RH heating 
cycle stops when the ambient temperature reaches below -30 degC; above this level RH 
values should be valid.
Measurements:twpsondewnpnC2.b1:
  • Humidity, relative(rh)
  • Dewpoint Temperature(dp)


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DQRID : D080925.1
Start DateStart TimeEnd DateEnd Time
09/08/2008114509/08/20081145
Subject:
TWP/SONDE/C2 - Bad RH values throughout sounding
DataStreams:twpsondewnpnC2.b1
Description:
RH values fluctuate largely in a stepping function throughout the sounding.  Suspect bad 
RH sensors.
Measurements:twpsondewnpnC2.b1:
  • Humidity, relative(rh)


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DQRID : D081114.1
Start DateStart TimeEnd DateEnd Time
11/04/2008114511/04/20081145
Subject:
TWP/SONDE/C2 - Defective Temperature Sensor
DataStreams:twpsondewnpnC2.b1
Description:
Temperature sensor shows a +30C offset for duration of flight.
Measurements:twpsondewnpnC2.b1:
  • Dry Bulb Temperature(tdry)


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DQRID : D090224.4
Start DateStart TimeEnd DateEnd Time
01/08/2009233101/08/20092331
Subject:
TWP/SONDE/C2 - Suspect RH values
DataStreams:twpsondewnpnC2.b1
Description:
RH values only are suspect for the duration of this radiosonde flight, exhibiting a 
"sawtooth" pattern.
Measurements:twpsondewnpnC2.b1:
  • Humidity, relative(rh)


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DQRID : D090629.3
Start DateStart TimeEnd DateEnd Time
06/21/2009110006/24/20091100
Subject:
TWP/SONDE/C1 - Wind data missing
DataStreams:twpsondewnpnC1.b1
Description:
A GPS problem associated with Vaisala BBSS ground station software issues caused the 
ground stations to enter into an error state when using GPS wind finding. In some instances, 
the flight was aborted due to the error state and not data was collected.  A workaround 
was developed to allow sondes to be launched without collecting wind data.
Measurements:twpsondewnpnC1.b1:
  • wstat
  • Northward Wind Component(v_wind)
  • Eastward Wind Component(u_wind)
  • Mean Wind Speed(wspd)


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DQRID : D090629.4
Start DateStart TimeEnd DateEnd Time
06/21/2009110006/26/20091100
06/27/2009120006/27/20091200
Subject:
TWP/SONDE/C2 - Wind data missing
DataStreams:twpsondewnpnC2.b1
Description:
A GPS problem associated with Vaisala BBSS ground station software issues caused the 
ground stations to enter into an error state when using GPS wind finding. In some instances, 
the flight was aborted due to the error state and not data was collected.  A workaround 
was developed to allow sondes to be launched without collecting wind data.
Measurements:twpsondewnpnC2.b1:
  • wstat
  • Eastward Wind Component(u_wind)
  • Northward Wind Component(v_wind)
  • Mean Wind Speed(wspd)


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DQRID : D120427.2
Start DateStart TimeEnd DateEnd Time
08/08/2011113012/10/20111130
Subject:
TWP/SONDE/C2 - Incorrect latitude
DataStreams:twpsondewnpnC2.b1
Description:
Latitude incorrect:  When the new MRP111 card was installed on 08/08/2011, the DigiCORA 
software (v3.61.1) was also reloaded.  The latitude was incorrectly entered as +0.52.  It 
should have been entered as -0.52.  This mistake was corrected on 12/10/2011 when a 
compromised BBSS computer was replaced and the software reloaded.

Data will be reprocessed.
Measurements:twpsondewnpnC2.b1:
  • lat


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DQRID : D120430.1
Start DateStart TimeEnd DateEnd Time
06/25/2011113008/08/20111130
Subject:
TWP/SONDE/C2 - Missing data
DataStreams:twpsondewnpnC2.b1
Description:
Date are missing and unrecoverable.
Measurements:twpsondewnpnC2.b1:
  • lon
  • Eastward Wind Component(u_wind)
  • Northward Wind Component(v_wind)
  • asc
  • Humidity, relative(rh)
  • base_time
  • Dewpoint Temperature(dp)
  • time_offset
  • wstat
  • Wind Direction(deg)
  • alt
  • Mean Wind Speed(wspd)
  • Pressure, atmospheric, constant value of model level, RUC model output(pres)
  • lat
  • Dry Bulb Temperature(tdry)


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