Data Quality Reports for Session: 143262 User: annie1l1pu Completed: 06/21/2012


TABLE OF CONTENTS

DQR IDSubjectData Streams Affected
D041027.1NSA/MWRP/C1 - Missing datansamwrpC1.b1
D090407.1NSA/MWRP/C1 - Reprocessed: Negative bias in LWPnsamwrpC1.b1
D090826.1NSA/MWRP/C1 - Reprocess: V-band channels too coldnsamwrpC1.b1
D100330.1NSA/MWRP/C1 - Reprocessed: LN2 calibrationnsamwrpC1.b1
D100623.1NSA/MWRP/C1 - IRT readings biasnsamwrpC1.b1
D101109.1NSA/MWRP/C1 - Reprocess: Incorrect calibrationnsamwrpC1.b1
D110201.2NSA/MWRP/C1 - Calibration driftnsamwrpC1.b1
D110511.1NSA/MWRP/C1 - Incorrect brightness temperaturesnsamwrpC1.b1
D120130.1NSA/MWRP/C1 - Reprocess: Incorrect calibration coefficientsnsamwrpC1.b1
D120221.1NSA/MWRP/C1 - Rapid calibration driftnsamwrpC1.b1
D120328.1NSA/MWRP/C1 - Calibration temperature dependencensamwrpC1.b1
D120521.1NSA/MWRP/C1 - Reprocess: Incorrect calibrationnsamwrpC1.b1


DQRID : D041027.1
Start DateStart TimeEnd DateEnd Time
09/04/2005053109/06/20051857
09/10/2005005209/12/20051830
09/21/2005180510/12/20052311
06/23/2006180008/08/20062250
08/11/2006235908/14/20061454
10/09/2006210110/11/20061733
01/05/2007235801/08/20072019
02/28/2007230903/05/20070027
07/13/2007183812/08/20070125
01/04/2008235701/06/20081903
02/16/2008181802/21/20080006
02/23/2008100502/26/20082320
03/12/2008014304/09/20081540
04/10/2008184004/14/20081657
04/18/2008225804/21/20081422
04/27/2008184604/29/20080525
05/01/2008032805/28/20082241
10/14/2008165902/13/20092234
02/01/2011180004/04/20111300
04/09/2011000004/11/20111400
04/28/2011000010/19/20110000
04/10/2005000004/11/20051622
11/20/2004003911/22/20041851
10/07/2004085910/27/20041237
02/21/2004092502/23/20042238
Subject:
NSA/MWRP/C1 - Missing data
DataStreams:nsamwrpC1.b1
Description:
Data are missing and unrecoverable.
Measurements:nsamwrpC1.b1:
  • Pressure, level of free convection(levelFreeConvectionPres)
  • Temperature, virtual, vert. prof. sfc-10km, fr. wtr. vap. dens. and temp. prof.(virtualTemperature)
  • Pressure, lifting condensation level(liftingCondensationLevelPres)
  • Pressure, equilibrium level(equilibriumLevelPres)
  • dataQualityFlags
  • Density, water vapor, at instrument height (1 or 2 m)(surfaceWaterVaporDensity)
  • totalPrecipitableWater2RmsError
  • Humidity, relative, prof. from sfc.-10km, from water vap. dens. and temp. prof.(relativeHumidity)
  • Liquid water content, cloud, vert. prof. sfc.-10km, from Tbright stat. retrvl.(liquidWaterContent)
  • wetWindowFlag
  • Liquid water path, from Tbright at 23.835 and 30.0 GHz only, using stat. retrvl.(liquidWaterPath2)
  • Height, equilibrium level(equilibriumLevel)
  • infraredTemperature
  • Energy, potential, convective, available, from RUC model(cape)
  • time
  • time_offset
  • liquidWaterPathRmsError
  • waterVaporDensityRmsError
  • Barometric pressure(pressure)
  • blackbodyTemperature
  • Microwave brightness temperature(brightnessTemperature)
  • Liquid water path, from brightness temperatures using statistical retrieval(liquidWaterPath)
  • Retrieved water vapor mixing ratio(waterVaporMixingRatio)
  • alt
  • Pressure, barometric. at instrument height (1 or 2 m)(surfacePressure)
  • Height, lifting condensation level(liftingCondensationLevel)
  • Pressure, associated geometric height, at altitude, NGM model output(height)
  • Height, level of free convection(levelFreeConvection)
  • elevation
  • liquidWaterContentRmsError
  • Retrieved dewpoint temperature(dewpointTemperature)
  • Temperature, air, at instrument height (1 or 2 m)(surfaceTemperature)
  • Humidity, relative, at instrument height (1 or 2 m)(surfaceRelativeHumidity)
  • liquidWaterPath2RmsError
  • frequency
  • temperatureRmsError
  • Water vapor, total precipitable, derived from Tbright using stat. retrvl.(totalPrecipitableWater)
  • Air temperature(temperature)
  • base_time
  • Density, water vapor, prof. from sfc.-10 km, der. from Tbright stat. retrvl.(waterVaporDensity)
  • totalPrecipitableWaterRmsError
  • Height, cloud base, height where IR temp. matches retrieved temp. profile(cloudBaseHeight)
  • lon
  • lat
  • azimuth
  • Water vapor, tot. precipitable, from Tbright, 23.835 & 30.0 GHz, stat. retrvl.(totalPrecipitableWater2)


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DQRID : D090407.1
Start DateStart TimeEnd DateEnd Time
02/13/2009000004/15/20091950
Subject:
NSA/MWRP/C1 - Reprocessed: Negative bias in LWP
DataStreams:nsamwrpC1.b1
Description:
After the radiometer was installed at the site following extensive refurbishing the 
retrieved LWP had a large negative bias (~-0.07 mm). The calibration coefficients were modified 
and that resolved the problem. Data for February, March and part of April were 
reprocessed with the revised calibrations and archived in July.
Measurements:nsamwrpC1.b1:
  • Water vapor, total precipitable, derived from Tbright using stat. retrvl.(totalPrecipitableWater)
  • Liquid water path, from brightness temperatures using statistical retrieval(liquidWaterPath)
  • Microwave brightness temperature(brightnessTemperature)
  • Liquid water path, from Tbright at 23.835 and 30.0 GHz only, using stat. retrvl.(liquidWaterPath2)
  • Water vapor, tot. precipitable, from Tbright, 23.835 & 30.0 GHz, stat. retrvl.(totalPrecipitableWater2)


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DQRID : D090826.1
Start DateStart TimeEnd DateEnd Time
07/20/2009181708/26/20091950
Subject:
NSA/MWRP/C1 - Reprocess: V-band channels too cold
DataStreams:nsamwrpC1.b1
Description:
The calibrations of 7/20 and 7/29 were slightly affected by high humidity at the site. As 
a result the V-band channels were calibrated too cold.
On 8/26 I modified the mp.cfg file and reinstated the calibration coefficients derived on 
3/20/2009.

Data between 7/20 and 8/26 will be reprocessed with one set of calibration coefficients.
Measurements:nsamwrpC1.b1:
  • Temperature, virtual, vert. prof. sfc-10km, fr. wtr. vap. dens. and temp. prof.(virtualTemperature)
  • Air temperature(temperature)
  • Microwave brightness temperature(brightnessTemperature)


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DQRID : D100330.1
Start DateStart TimeEnd DateEnd Time
02/01/2010000003/05/20102200
Subject:
NSA/MWRP/C1 - Reprocessed: LN2 calibration
DataStreams:nsamwrpC1.b1
Description:
The instrument was calibrated on 3/5/2010. These latest calibration coefficients have been 
applied to February data as well to mitigate the high bias in LWP observed in February.  
Reprocessed data were archived April 2010.
Measurements:nsamwrpC1.b1:
  • Pressure, level of free convection(levelFreeConvectionPres)
  • Temperature, virtual, vert. prof. sfc-10km, fr. wtr. vap. dens. and temp. prof.(virtualTemperature)
  • Height, lifting condensation level(liftingCondensationLevel)
  • Pressure, lifting condensation level(liftingCondensationLevelPres)
  • Pressure, equilibrium level(equilibriumLevelPres)
  • Height, level of free convection(levelFreeConvection)
  • Liquid water content, cloud, vert. prof. sfc.-10km, from Tbright stat. retrvl.(liquidWaterContent)
  • Liquid water path, from Tbright at 23.835 and 30.0 GHz only, using stat. retrvl.(liquidWaterPath2)
  • Height, equilibrium level(equilibriumLevel)
  • Retrieved dewpoint temperature(dewpointTemperature)
  • Water vapor, total precipitable, derived from Tbright using stat. retrvl.(totalPrecipitableWater)
  • Density, water vapor, prof. from sfc.-10 km, der. from Tbright stat. retrvl.(waterVaporDensity)
  • Microwave brightness temperature(brightnessTemperature)
  • Liquid water path, from brightness temperatures using statistical retrieval(liquidWaterPath)
  • Retrieved water vapor mixing ratio(waterVaporMixingRatio)
  • Water vapor, tot. precipitable, from Tbright, 23.835 & 30.0 GHz, stat. retrvl.(totalPrecipitableWater2)


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DQRID : D100623.1
Start DateStart TimeEnd DateEnd Time
06/07/2010070006/16/20101845
Subject:
NSA/MWRP/C1 - IRT readings bias
DataStreams:nsamwrpC1.b1
Description:
The MWRP IRT appeared to not be reaching its lower limit (-50 C / 223.15 K). The readings 
stayed around 230 K although the sky was clear. On 6/16 the site technicians noticed that 
the gold mirror was scratched and appeared to have a deposit on it. The mirror was 
replaced and on 6/17 the lens was cleaned. These actions solved the problem.
Measurements:nsamwrpC1.b1:
  • infraredTemperature


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DQRID : D101109.1
Start DateStart TimeEnd DateEnd Time
09/21/2010000011/15/20102113
Subject:
NSA/MWRP/C1 - Reprocess: Incorrect calibration
DataStreams:nsamwrpC1.b1
Description:
The calibration of the MWRP drifted starting on September 21. The drift caused a negative 
LWP. On 10/21 I modified the calibration of the 30 GHz channel in an attempt to correct 
for the negative bias in LWP. The change in the calibration however caused an excessive 
increase in the PWV retrievals. The original calibration values were reinstated on 10/29. I 
then recomputed the temperature coefficients as well as the noise diode injection 
temperature from tip curves and uploaded the new values on Nov 15 2010.
Measurements:nsamwrpC1.b1:
  • Water vapor, total precipitable, derived from Tbright using stat. retrvl.(totalPrecipitableWater)
  • Density, water vapor, prof. from sfc.-10 km, der. from Tbright stat. retrvl.(waterVaporDensity)
  • Humidity, relative, prof. from sfc.-10km, from water vap. dens. and temp. prof.(relativeHumidity)
  • Liquid water content, cloud, vert. prof. sfc.-10km, from Tbright stat. retrvl.(liquidWaterContent)
  • Liquid water path, from brightness temperatures using statistical retrieval(liquidWaterPath)
  • Microwave brightness temperature(brightnessTemperature)
  • Retrieved water vapor mixing ratio(waterVaporMixingRatio)
  • Liquid water path, from Tbright at 23.835 and 30.0 GHz only, using stat. retrvl.(liquidWaterPath2)
  • Water vapor, tot. precipitable, from Tbright, 23.835 & 30.0 GHz, stat. retrvl.(totalPrecipitableWater2)


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DQRID : D110201.2
Start DateStart TimeEnd DateEnd Time
11/24/2010000002/01/20111800
Subject:
NSA/MWRP/C1 - Calibration drift
DataStreams:nsamwrpC1.b1
Description:
The radiometer showed increased drift in the K-band calibration. Several attempts to 
correct for the drift did not return the expected result.  

Instrument was removed from service 20110201 and returned to vendor for repair.

Data are erratic; data use during the indicated time is not recommended.
Measurements:nsamwrpC1.b1:
  • Water vapor, total precipitable, derived from Tbright using stat. retrvl.(totalPrecipitableWater)
  • Temperature, virtual, vert. prof. sfc-10km, fr. wtr. vap. dens. and temp. prof.(virtualTemperature)
  • Height, lifting condensation level(liftingCondensationLevel)
  • Height, level of free convection(levelFreeConvection)
  • Density, water vapor, prof. from sfc.-10 km, der. from Tbright stat. retrvl.(waterVaporDensity)
  • Humidity, relative, prof. from sfc.-10km, from water vap. dens. and temp. prof.(relativeHumidity)
  • Liquid water content, cloud, vert. prof. sfc.-10km, from Tbright stat. retrvl.(liquidWaterContent)
  • Liquid water path, from brightness temperatures using statistical retrieval(liquidWaterPath)
  • Microwave brightness temperature(brightnessTemperature)
  • Liquid water path, from Tbright at 23.835 and 30.0 GHz only, using stat. retrvl.(liquidWaterPath2)
  • Water vapor, tot. precipitable, from Tbright, 23.835 & 30.0 GHz, stat. retrvl.(totalPrecipitableWater2)


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DQRID : D110511.1
Start DateStart TimeEnd DateEnd Time
04/04/2011130004/27/20111100
Subject:
NSA/MWRP/C1 - Incorrect brightness temperatures
DataStreams:nsamwrpC1.b1
Description:
The radiometer was reinstalled on 4/3/2011 but the 30 GHz data immediately appeared 
extremely noisy. The problem appears related to noise diode instability.
Measurements:nsamwrpC1.b1:
  • Pressure, level of free convection(levelFreeConvectionPres)
  • Temperature, virtual, vert. prof. sfc-10km, fr. wtr. vap. dens. and temp. prof.(virtualTemperature)
  • Height, lifting condensation level(liftingCondensationLevel)
  • Pressure, lifting condensation level(liftingCondensationLevelPres)
  • Pressure, equilibrium level(equilibriumLevelPres)
  • Height, level of free convection(levelFreeConvection)
  • Humidity, relative, prof. from sfc.-10km, from water vap. dens. and temp. prof.(relativeHumidity)
  • Liquid water content, cloud, vert. prof. sfc.-10km, from Tbright stat. retrvl.(liquidWaterContent)
  • Liquid water path, from Tbright at 23.835 and 30.0 GHz only, using stat. retrvl.(liquidWaterPath2)
  • Height, equilibrium level(equilibriumLevel)
  • Retrieved dewpoint temperature(dewpointTemperature)
  • Water vapor, total precipitable, derived from Tbright using stat. retrvl.(totalPrecipitableWater)
  • Air temperature(temperature)
  • Density, water vapor, prof. from sfc.-10 km, der. from Tbright stat. retrvl.(waterVaporDensity)
  • Microwave brightness temperature(brightnessTemperature)
  • Liquid water path, from brightness temperatures using statistical retrieval(liquidWaterPath)
  • Retrieved water vapor mixing ratio(waterVaporMixingRatio)
  • Water vapor, tot. precipitable, from Tbright, 23.835 & 30.0 GHz, stat. retrvl.(totalPrecipitableWater2)


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DQRID : D120130.1
Start DateStart TimeEnd DateEnd Time
10/19/2011000001/14/20120600
Subject:
NSA/MWRP/C1 - Reprocess: Incorrect calibration coefficients
DataStreams:nsamwrpC1.b1
Description:
The radiometer data need to be reprocessed with new calibrations.
Measurements:nsamwrpC1.b1:
  • Pressure, level of free convection(levelFreeConvectionPres)
  • Temperature, virtual, vert. prof. sfc-10km, fr. wtr. vap. dens. and temp. prof.(virtualTemperature)
  • Height, lifting condensation level(liftingCondensationLevel)
  • Pressure, lifting condensation level(liftingCondensationLevelPres)
  • Pressure, equilibrium level(equilibriumLevelPres)
  • Height, level of free convection(levelFreeConvection)
  • Humidity, relative, prof. from sfc.-10km, from water vap. dens. and temp. prof.(relativeHumidity)
  • Liquid water content, cloud, vert. prof. sfc.-10km, from Tbright stat. retrvl.(liquidWaterContent)
  • Liquid water path, from Tbright at 23.835 and 30.0 GHz only, using stat. retrvl.(liquidWaterPath2)
  • Height, equilibrium level(equilibriumLevel)
  • Retrieved dewpoint temperature(dewpointTemperature)
  • Water vapor, total precipitable, derived from Tbright using stat. retrvl.(totalPrecipitableWater)
  • Air temperature(temperature)
  • Density, water vapor, prof. from sfc.-10 km, der. from Tbright stat. retrvl.(waterVaporDensity)
  • Height, cloud base, height where IR temp. matches retrieved temp. profile(cloudBaseHeight)
  • Microwave brightness temperature(brightnessTemperature)
  • Liquid water path, from brightness temperatures using statistical retrieval(liquidWaterPath)
  • Retrieved water vapor mixing ratio(waterVaporMixingRatio)
  • Water vapor, tot. precipitable, from Tbright, 23.835 & 30.0 GHz, stat. retrvl.(totalPrecipitableWater2)


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DQRID : D120221.1
Start DateStart TimeEnd DateEnd Time
01/14/2012060002/03/20122300
Subject:
NSA/MWRP/C1 - Rapid calibration drift
DataStreams:nsamwrpC1.b1
Description:
The radiometer calibration was rapidly drifting. Brightness temperatures as well as 
retrievals are incorrect.
Measurements:nsamwrpC1.b1:
  • Pressure, level of free convection(levelFreeConvectionPres)
  • Temperature, virtual, vert. prof. sfc-10km, fr. wtr. vap. dens. and temp. prof.(virtualTemperature)
  • Height, lifting condensation level(liftingCondensationLevel)
  • Pressure, lifting condensation level(liftingCondensationLevelPres)
  • Pressure, equilibrium level(equilibriumLevelPres)
  • Height, level of free convection(levelFreeConvection)
  • Liquid water content, cloud, vert. prof. sfc.-10km, from Tbright stat. retrvl.(liquidWaterContent)
  • Liquid water path, from Tbright at 23.835 and 30.0 GHz only, using stat. retrvl.(liquidWaterPath2)
  • Height, equilibrium level(equilibriumLevel)
  • Energy, potential, convective, available, from RUC model(cape)
  • Retrieved dewpoint temperature(dewpointTemperature)
  • Water vapor, total precipitable, derived from Tbright using stat. retrvl.(totalPrecipitableWater)
  • Air temperature(temperature)
  • Density, water vapor, prof. from sfc.-10 km, der. from Tbright stat. retrvl.(waterVaporDensity)
  • Height, cloud base, height where IR temp. matches retrieved temp. profile(cloudBaseHeight)
  • Microwave brightness temperature(brightnessTemperature)
  • Liquid water path, from brightness temperatures using statistical retrieval(liquidWaterPath)
  • Retrieved water vapor mixing ratio(waterVaporMixingRatio)
  • Water vapor, tot. precipitable, from Tbright, 23.835 & 30.0 GHz, stat. retrvl.(totalPrecipitableWater2)


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DQRID : D120328.1
Start DateStart TimeEnd DateEnd Time
02/26/2012000003/23/20122359
Subject:
NSA/MWRP/C1 - Calibration temperature dependence
DataStreams:nsamwrpC1.b1
Description:
The calibration was showing a noticeable temperature dependence that was not corrected by 
the calibration coefficients. Between 2/26 and 3/23 the quality of the data and of the 
retrievals is degraded.
Measurements:nsamwrpC1.b1:
  • Water vapor, total precipitable, derived from Tbright using stat. retrvl.(totalPrecipitableWater)
  • Temperature, virtual, vert. prof. sfc-10km, fr. wtr. vap. dens. and temp. prof.(virtualTemperature)
  • Air temperature(temperature)
  • Density, water vapor, prof. from sfc.-10 km, der. from Tbright stat. retrvl.(waterVaporDensity)
  • Humidity, relative, prof. from sfc.-10km, from water vap. dens. and temp. prof.(relativeHumidity)
  • Liquid water content, cloud, vert. prof. sfc.-10km, from Tbright stat. retrvl.(liquidWaterContent)
  • Liquid water path, from brightness temperatures using statistical retrieval(liquidWaterPath)
  • Microwave brightness temperature(brightnessTemperature)
  • Retrieved water vapor mixing ratio(waterVaporMixingRatio)
  • Liquid water path, from Tbright at 23.835 and 30.0 GHz only, using stat. retrvl.(liquidWaterPath2)
  • Water vapor, tot. precipitable, from Tbright, 23.835 & 30.0 GHz, stat. retrvl.(totalPrecipitableWater2)


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DQRID : D120521.1
Start DateStart TimeEnd DateEnd Time
04/13/2012182204/25/20121608
Subject:
NSA/MWRP/C1 - Reprocess: Incorrect calibration
DataStreams:nsamwrpC1.b1
Description:
The LN2 calibration was only partially successful, some the K-band channels did not 
calibrate properly. On 4/25 new coefficients were derived from tip curves and were uploaded.
Measurements:nsamwrpC1.b1:
  • Water vapor, total precipitable, derived from Tbright using stat. retrvl.(totalPrecipitableWater)
  • Temperature, virtual, vert. prof. sfc-10km, fr. wtr. vap. dens. and temp. prof.(virtualTemperature)
  • Density, water vapor, prof. from sfc.-10 km, der. from Tbright stat. retrvl.(waterVaporDensity)
  • Liquid water content, cloud, vert. prof. sfc.-10km, from Tbright stat. retrvl.(liquidWaterContent)
  • Liquid water path, from brightness temperatures using statistical retrieval(liquidWaterPath)
  • Microwave brightness temperature(brightnessTemperature)
  • Retrieved water vapor mixing ratio(waterVaporMixingRatio)
  • Liquid water path, from Tbright at 23.835 and 30.0 GHz only, using stat. retrvl.(liquidWaterPath2)
  • Water vapor, tot. precipitable, from Tbright, 23.835 & 30.0 GHz, stat. retrvl.(totalPrecipitableWater2)


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