Data Quality Reports for Session: 108974 User: kjohnson Completed: 11/19/2007

TABLE OF CONTENTS

DQR IDSubjectData Streams Affected
D030616.5TWP/MMCR/C1 - Sensitivity DroptwpmmcrcalC1.a1, twpmmcrmomentsC1.a1
D060522.1TWP/SMET/C1 - Upper wind speed sensor failuretwpsmet60sC1.b1
D060817.3TWP/SMET/C1 - Reprocess: Barometric Data Changed from hPa to kPatwpsmet60sC1.b1
D061011.2TWP/SMET/C1 - Reprocess: Tipping bucket rain gauge addedtwpsmet60sC1.b1


DQRID : D030616.5
Start DateStart TimeEnd DateEnd Time
05/28/2003034505/29/20031630
05/31/2003040006/02/20031500
06/09/2003080006/10/20031700
06/26/2003140006/26/20032359
06/29/2003170006/29/20031800
07/18/2003063007/18/20031430
07/20/2003021507/20/20030400
08/01/2003200008/01/20032359
08/17/2003043008/18/20030530
09/16/2003103009/16/20031400
09/16/2003154509/17/20030130
09/22/2003223009/23/20031600
10/09/2003033010/09/20031900
11/20/2003080011/20/20031600
01/11/2004083001/11/20041000
01/22/2004080001/22/20040900
01/27/2004050001/27/20040830
01/27/2004170001/28/20040315
04/11/2004053004/11/20041430
05/23/2004233006/01/20040030
06/02/2004104506/02/20042030
09/13/2004000009/16/20042359
09/18/2004110009/19/20042359
09/28/2004141509/28/20042000
10/08/2004160010/09/20041900
10/18/2004063010/18/20042130
11/03/2004223011/04/20042330
12/13/2004073012/13/20040945
01/04/2005013001/04/20052359
01/05/2005233001/07/20051100
01/21/2005090001/21/20051530
02/08/2005230002/10/20051030
02/13/2005033002/14/20051600
02/21/2005154502/22/20051545
02/22/2005173002/22/20052359
05/24/2005030005/24/20052359
06/15/2005173006/18/20050200
06/19/2005053006/23/20052300
06/27/2005214506/27/20052230
07/07/2005233007/11/20052030
11/11/2005000011/11/20052359
11/12/2005123011/16/20050400
12/12/2005210012/12/20052200
12/13/2005023012/14/20052359
12/15/2005043012/15/20051530
12/16/2005030012/17/20052359
12/18/2005063012/19/20052359
01/01/2006213001/10/20060100
02/06/2006133002/08/20060030
02/16/2006040002/16/20062359
03/01/2006000003/01/20060630
03/04/2006060003/04/20062359
03/06/2006033003/06/20060445
03/07/2006000003/07/20060730
03/08/2006043003/08/20062359
03/17/2006033003/18/20060700
03/25/2006070003/26/20060330
04/10/2006050004/11/20060830
04/13/2006080004/16/20060830
04/17/2006050004/17/20062359
04/22/2006220004/24/20062359
06/09/2006083006/11/20060100
09/12/2006013009/12/20061300
09/13/2006000009/13/20061530
09/14/2006000009/14/20061830
09/15/2006010009/15/20061130
09/16/2006000009/16/20060400
09/16/2006150009/16/20062000
09/21/2006010009/21/20061600
09/22/2006113009/25/20061500
09/27/2006210010/13/20060030
Subject:
TWP/MMCR/C1 - Sensitivity Drop
DataStreams:twpmmcrcalC1.a1, twpmmcrmomentsC1.a1
Description:
Intermittent problem of sensitivity drop during the specified periods.
Measurements:twpmmcrmomentsC1.a1:
  • Inter-Pulse Period(InterPulsePeriod)
  • Delay to First Range Gate(StartGateDelay)
  • 10000 * [SpectralWidth(m/s) / NyquistVelocity(m/s)](SpectralWidthValue)
  • 10000 * [MeanDopperVelocity(m/s) / NyquistVelocity(m/s)](MeanDopplerValue)
  • Number of Ffts(NumFft)
  • Number of Spectra Averaged(NumSpectraAveraged)
  • Pulse Width(PulseWidth)
  • Number of Coherent Integrations(NumCoherentIntegrations)
  • Height of Center of Each Range Bin(Heights)
  • RadarWaveLength(m) / [4 * InterPulsePeriod(s) * NumCoherentIntegrations](NyquistVelocity)
  • Gate Spacing(GateSpacing)
  • Delay thgrough Rx(Delay)
  • Number of Code Bits(NumCodeBits)
  • Number of Gate Heights(NumHeights)
  • Rx bandwidtch switch code(Switch)
  • Signal to Noise Ratio(SignalToNoiseRatio)
  • 1000 * log10 (noise signal level)(Noise)
twpmmcrcalC1.a1:
  • Partial Decoding Loss(PartialDecodingLoss)
  • Transmitter Path Loss(TransmitterPathLoss)
  • Gate Spacing(GateSpacing)
  • Coded Pulse Loss(CodedPulseLoss)
  • Height of Center of Each Range Bin(Heights)
  • Number of Gate Heights(NumHeights)
  • Number of Code Bits(NumCodeBits)
  • Peak Transmitted Power(PeakTransmittedPower)
  • Delay to First Range Gate(StartGateDelay)
  • Receiver Calib Noise Crv Cal. Power Values(RxCalibrationNoiseCrv)
  • Receiver Cal Noise Crv Sig Power Values(RxCalibrationNoiseCrvSignal)
  • Circulator #1 Attenuation(CirculatorAttenuation1)
  • MMCR Reflectivity(Reflectivity)
  • Pulse Width(PulseWidth)
  • Number of Ffts(NumFft)
  • Receiver Path Loss(ReceiverPathLoss)
  • Range Corrected, Calibrated Power(RangeCorrectedCalibratedPower)
  • Number of Coherent Integrations(NumCoherentIntegrations)
  • Number of Spectra Averaged(NumSpectraAveraged)
  • Inter-Pulse Period(InterPulsePeriod)

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DQRID : D060522.1
Start DateStart TimeEnd DateEnd Time
05/09/2006000010/14/20060237
Subject:
TWP/SMET/C1 - Upper wind speed sensor failure
DataStreams:twpsmet60sC1.b1
Description:
The upper wind speed sensor was binding at low wind speeds.  Comparison to the lower wind 
sensor showed that the upper sensor flat-lines for long periods of time.  The upper 
anemometer was replaced.
Measurements:twpsmet60sC1.b1:
  • Wind #1 speed standard deviation(wind1_spd_sd)
  • Wind #1 speed maximum gust(wind1_spd_max_gust)
  • Wind #1 direction standard deviation(wind1_dir_sd)
  • Wind #1 speed arithmetic average(wind1_spd_arith_avg)
  • Wind #1 speed maximum(wind1_spd_max)
  • Wind #1 direction vector average(wind1_dir_vec_avg)
  • Wind #1 speed vector average(wind1_spd_vec_avg)
  • Wind #1 speed minimum(wind1_spd_min)

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DQRID : D060817.3
Start DateStart TimeEnd DateEnd Time
10/09/1996000007/13/20062225
Subject:
TWP/SMET/C1 - Reprocess: Barometric Data Changed from hPa to kPa
DataStreams:twpsmet60sC1.b1
Description:
Barometric pressure data was converted from hPa to kPa in order to standardize the 
measurement units among ARM sites and to conform to accepted standard units determined by the 
scientific community.
Measurements:twpsmet60sC1.b1:
  • Barometric Pressure(atmos_pressure)

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DQRID : D061011.2
Start DateStart TimeEnd DateEnd Time
10/09/1996000010/17/20060000
Subject:
TWP/SMET/C1 - Reprocess: Tipping bucket rain gauge added
DataStreams:twpsmet60sC1.b1
Description:
A tipping bucket rain gauge was added to the TWP.C1 SMET suite of instruments on 20061017. 
 Effective 20060926, two new variables (count and rain amount) were added to the end of 
the twpsmet60sC1.b1 datastream.  Between 9/26 and 10/17, the data for these two variables 
are filled with zeros.  Users should not use the data during this period as the zeros 
are not representative of the rain fall at the site.  When reprocessing of this datastream 
occurs these variables will be added for the 19961009-20060926 and data from 
19961009-20061017 will be filled with -9999 (missing).
Measurements:twpsmet60sC1.b1:
  • base time(base_time)

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