Data Quality Reports for Session: 124330 User: sayer Completed: 11/16/2009

TABLE OF CONTENTS

DQR IDSubjectData Streams Affected
D020613.3TWP/C2 Installationtwparscl1clothC2.c1, twparsclbnd1clothC2.c1, twparsclcbh1clothC2.c1,
twpmmcrmode01v0071clothC2.c1, twpmmcrmode02v0041clothC2.c1, twpmmcrmode03v0051clothC2.c1,
twpmmcrmode04v0041clothC2.c1
D020823.38NSA/MMCR/C1 - No radar pulse transmissionnsaarscl1clothC1.c1, nsammcrcalC1.a1, nsammcrmode01v0091clothC1.c1,
nsammcrmode02v0061clothC1.c1, nsammcrmode03v0081clothC1.c1, nsammcrmode04v0061clothC1.c1,
nsammcrmomentsC1.a1, nsammcrmonC1.a1, nsammcrpowC1.a1
D020927.1SGP/ARSCL/C1 - ARSCL Cloud Bases and Low-level reflectivitiessgparscl1clothC1.c1, sgparsclbnd1clothC1.c1, sgparsclcbh1clothC1.c1


DQRID : D020613.3
Start DateStart TimeEnd DateEnd Time
11/01/1998000211/19/19982359
Subject:
TWP/C2  Installation
DataStreams:twparscl1clothC2.c1, twparsclbnd1clothC2.c1, twparsclcbh1clothC2.c1,
twpmmcrmode01v0071clothC2.c1, twpmmcrmode02v0041clothC2.c1, twpmmcrmode03v0051clothC2.c1,
twpmmcrmode04v0041clothC2.c1
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:twpmmcrmode01v0071clothC2.c1:
  • MPL Clothiaux et al. Algorithm Cloud Base Height(CloudBaseMplCloth)
  • BLC/VCEIL Clothiaux et al. Algorithm Cloud Base Height(CloudBaseCeilometerCloth)
  • MMCR Signal-to-Noise Ratio(SignaltoNoiseRatio)
  • MMCR Mean Doppler Velocity(MeanDopplerVelocity)
  • Microwave Radiometer Wet Window/Optical Rain Gauge Cloud Base Height(CloudBasePrecipitation)
  • Height of Center of Each Range Bin(Heights)
  • LASER Cloud Base Height Best Estimate(CloudBaseBestEstimate)
  • Time offset of tweaks from base_time(time_offset)
  • MPL Campbell et al. Algorithm Cloud Base Height(CloudBaseMplCamp)
  • BLC/VCEIL Standard Algorithm Cloud Base Height(CloudBaseCeilometerStd)
  • MMCR Reflectivity(Reflectivity)
  • MMCR Spectral Width(SpectralWidth)
  • base time(base_time)
  • MPL Scott Algorithm Cloud Base Height(CloudBaseMplScott)
twparsclbnd1clothC2.c1:
  • LASER Cloud Base Height Best Estimate(CloudBaseBestEstimate)
  • Bottom Height of Hydrometeor Layer from Composite (MMCR/Campbell et al. MPL)
    Algorithms(CloudLayerBottomHeightMplCamp)
  • Top Height of Hydrometeor Layer from Composite (MMCR/Campbell et al. MPL)
    Algorithms(CloudLayerTopHeightMplCamp)
  • Time offset of tweaks from base_time(time_offset)
  • Bottom Height of Hydrometeor Layer from Composite (MMCR/Clothiaux et al. MPL)
    Algorithms(CloudLayerBottomHeightMplCloth)
  • Top Height of Hydrometeor Layer from Composite (MMCR/Clothiaux et al. MPL)
    Algorithms(CloudLayerTopHeightMplCloth)
  • base time(base_time)
twparsclcbh1clothC2.c1:
  • Time offset of tweaks from base_time(time_offset)
  • BLC/VCEIL Standard Algorithm Cloud Base Height(CloudBaseCeilometerStd)
  • BLC/VCEIL Clothiaux et al. Algorithm Cloud Base Height(CloudBaseCeilometerCloth)
  • MPL Campbell et al. Algorithm Cloud Base Height(CloudBaseMplCamp)
  • base time(base_time)
  • MPL Clothiaux et al. Algorithm Cloud Base Height(CloudBaseMplCloth)
  • MPL Scott Algorithm Cloud Base Height(CloudBaseMplScott)
  • Microwave Radiometer Wet Window/Optical Rain Gauge Cloud Base Height(CloudBasePrecipitation)
twpmmcrmode02v0041clothC2.c1:
  • MMCR Signal-to-Noise Ratio(SignaltoNoiseRatio)
  • MPL Campbell et al. Algorithm Cloud Base Height(CloudBaseMplCamp)
  • MMCR Reflectivity(Reflectivity)
  • LASER Cloud Base Height Best Estimate(CloudBaseBestEstimate)
  • Height of Center of Each Range Bin(Heights)
  • MMCR Mean Doppler Velocity(MeanDopplerVelocity)
  • MPL Scott Algorithm Cloud Base Height(CloudBaseMplScott)
  • MPL Clothiaux et al. Algorithm Cloud Base Height(CloudBaseMplCloth)
  • Microwave Radiometer Wet Window/Optical Rain Gauge Cloud Base Height(CloudBasePrecipitation)
  • Time offset of tweaks from base_time(time_offset)
  • BLC/VCEIL Clothiaux et al. Algorithm Cloud Base Height(CloudBaseCeilometerCloth)
  • BLC/VCEIL Standard Algorithm Cloud Base Height(CloudBaseCeilometerStd)
  • base time(base_time)
  • MMCR Spectral Width(SpectralWidth)
twparscl1clothC2.c1:
  • Top Height of Hydrometeor Layer from Composite (MMCR/Clothiaux et al. MPL)
    Algorithms(CloudLayerTopHeightMplCloth)
  • Microwave Radiometer Wet Window/Optical Rain Gauge Cloud Base Height(CloudBasePrecipitation)
  • MMCR Spectral Width(SpectralWidth)
  • MPL Campbell et al. Algorithm Cloud Base Height(CloudBaseMplCamp)
  • BLC/VCEIL Standard Algorithm Cloud Base Height(CloudBaseCeilometerStd)
  • BLC/VCEIL Clothiaux et al. Algorithm Cloud Base Height(CloudBaseCeilometerCloth)
  • MPL Scott Algorithm Cloud Base Height(CloudBaseMplScott)
  • MMCR Reflectivity with Clutter Removed(ReflectivityNoClutter)
  • MMCR Mean Doppler Velocity(MeanDopplerVelocity)
  • MMCR Top Height of Lowest Detected Layer before Clutter Removal(RadarFirstTop)
  • Bottom Height of Hydrometeor Layer from Composite (MMCR/Clothiaux et al. MPL)
    Algorithms(CloudLayerBottomHeightMplCloth)
  • MMCR Mode I.D.(ModeId)
  • base time(base_time)
  • MPL Campbell et al. Algorithm Cloud Mask Occurrence(CloudMaskMplCamp)
  • MMCR Best Estimate of Hydrometeor Reflectivity(ReflectivityBestEstimate)
  • MPL Cloth et al. Algorithm Cloud Mask(CloudMaskMplCloth)
  • MMCR Reflectivity(Reflectivity)
  • Height of Center of Each Range Bin(Heights)
  • MPL Clothiaux et al. Algorithm Cloud Base Height(CloudBaseMplCloth)
  • Time offset of tweaks from base_time(time_offset)
  • Top Height of Hydrometeor Layer from Composite (MMCR/Campbell et al. MPL)
    Algorithms(CloudLayerTopHeightMplCamp)
  • MMCR Signal-to-Noise Ratio(SignaltoNoiseRatio)
  • Bottom Height of Hydrometeor Layer from Composite (MMCR/Campbell et al. MPL)
    Algorithms(CloudLayerBottomHeightMplCamp)
  • LASER Cloud Base Height Best Estimate(CloudBaseBestEstimate)
twpmmcrmode03v0051clothC2.c1:
  • MPL Clothiaux et al. Algorithm Cloud Base Height(CloudBaseMplCloth)
  • Height of Center of Each Range Bin(Heights)
  • Time offset of tweaks from base_time(time_offset)
  • BLC/VCEIL Clothiaux et al. Algorithm Cloud Base Height(CloudBaseCeilometerCloth)
  • MMCR Mean Doppler Velocity(MeanDopplerVelocity)
  • MPL Campbell et al. Algorithm Cloud Base Height(CloudBaseMplCamp)
  • MMCR Signal-to-Noise Ratio(SignaltoNoiseRatio)
  • base time(base_time)
  • Microwave Radiometer Wet Window/Optical Rain Gauge Cloud Base Height(CloudBasePrecipitation)
  • LASER Cloud Base Height Best Estimate(CloudBaseBestEstimate)
  • MMCR Reflectivity(Reflectivity)
  • MMCR Spectral Width(SpectralWidth)
  • MPL Scott Algorithm Cloud Base Height(CloudBaseMplScott)
  • BLC/VCEIL Standard Algorithm Cloud Base Height(CloudBaseCeilometerStd)
twpmmcrmode04v0041clothC2.c1:
  • MPL Clothiaux et al. Algorithm Cloud Base Height(CloudBaseMplCloth)
  • MPL Scott Algorithm Cloud Base Height(CloudBaseMplScott)
  • Microwave Radiometer Wet Window/Optical Rain Gauge Cloud Base Height(CloudBasePrecipitation)
  • MMCR Reflectivity(Reflectivity)
  • base time(base_time)
  • BLC/VCEIL Clothiaux et al. Algorithm Cloud Base Height(CloudBaseCeilometerCloth)
  • MMCR Mean Doppler Velocity(MeanDopplerVelocity)
  • BLC/VCEIL Standard Algorithm Cloud Base Height(CloudBaseCeilometerStd)
  • Height of Center of Each Range Bin(Heights)
  • LASER Cloud Base Height Best Estimate(CloudBaseBestEstimate)
  • MMCR Signal-to-Noise Ratio(SignaltoNoiseRatio)
  • Time offset of tweaks from base_time(time_offset)
  • MPL Campbell et al. Algorithm Cloud Base Height(CloudBaseMplCamp)
  • MMCR Spectral Width(SpectralWidth)

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DQRID : D020823.38
Start DateStart TimeEnd DateEnd Time
12/14/1998143012/14/19981445
01/15/1999030001/15/19990320
02/28/1999083002/28/19990900
Subject:
NSA/MMCR/C1 - No radar pulse transmission
DataStreams:nsaarscl1clothC1.c1, nsammcrcalC1.a1, nsammcrmode01v0091clothC1.c1,
nsammcrmode02v0061clothC1.c1, nsammcrmode03v0081clothC1.c1, nsammcrmode04v0061clothC1.c1,
nsammcrmomentsC1.a1, nsammcrmonC1.a1, nsammcrpowC1.a1
Description:
A fault in transmission occurred so no radar pulse was emitted and therefore no return 
signal, only noise, was received.

Note from Karen Johnson: the ARSCL and MMCRMODE data fields
may or may not be suspect, depending on whether ARSCL correctly
identified the MMCR data as bad.
Measurements:nsaarscl1clothC1.c1:
  • MMCR Mode I.D.(ModeId)
  • MMCR Spectral Width(SpectralWidth)
  • MMCR Reflectivity with Clutter Removed(ReflectivityNoClutter)
  • MMCR Best Estimate of Hydrometeor Reflectivity(ReflectivityBestEstimate)
  • MMCR Mean Doppler Velocity(MeanDopplerVelocity)
  • MMCR Top Height of Lowest Detected Layer before Clutter Removal(RadarFirstTop)
  • Top Height of Hydrometeor Layer from Composite (MMCR/Clothiaux et al. MPL)
    Algorithms(CloudLayerTopHeightMplCloth)
  • Top Height of Hydrometeor Layer from Composite (MMCR/Campbell et al. MPL)
    Algorithms(CloudLayerTopHeightMplCamp)
  • Bottom Height of Hydrometeor Layer from Composite (MMCR/Clothiaux et al. MPL)
    Algorithms(CloudLayerBottomHeightMplCloth)
  • MMCR Signal-to-Noise Ratio(SignaltoNoiseRatio)
  • Bottom Height of Hydrometeor Layer from Composite (MMCR/Campbell et al. MPL)
    Algorithms(CloudLayerBottomHeightMplCamp)
  • MMCR Reflectivity(Reflectivity)
nsammcrcalC1.a1:
  • Number of Ffts(NumFft)
  • Receiver Cal Noise Crv Sig Power Values(RxCalibrationNoiseCrvSignal)
  • Range Corrected, Calibrated Power(RangeCorrectedCalibratedPower)
  • Receiver Calib Noise Crv Cal. Power Values(RxCalibrationNoiseCrv)
  • MMCR Reflectivity(Reflectivity)
  • Delay to First Range Gate(StartGateDelay)
  • Number of Gate Heights(NumHeights)
  • Inter-Pulse Period(InterPulsePeriod)
  • Circulator #1 Attenuation(CirculatorAttenuation1)
  • Number of Code Bits(NumCodeBits)
  • Gate Spacing(GateSpacing)
  • Height of Center of Each Range Bin(Heights)
  • Receiver Path Loss(ReceiverPathLoss)
  • Partial Decoding Loss(PartialDecodingLoss)
  • Number of Coherent Integrations(NumCoherentIntegrations)
  • Peak Transmitted Power(PeakTransmittedPower)
  • Pulse Width(PulseWidth)
  • Number of Spectra Averaged(NumSpectraAveraged)
  • Transmitter Path Loss(TransmitterPathLoss)
  • Coded Pulse Loss(CodedPulseLoss)
nsammcrmode03v0081clothC1.c1:
  • MMCR Signal-to-Noise Ratio(SignaltoNoiseRatio)
  • MMCR Spectral Width(SpectralWidth)
  • MMCR Mean Doppler Velocity(MeanDopplerVelocity)
  • MMCR Reflectivity(Reflectivity)
nsammcrmode02v0061clothC1.c1:
  • MMCR Reflectivity(Reflectivity)
  • MMCR Spectral Width(SpectralWidth)
  • MMCR Mean Doppler Velocity(MeanDopplerVelocity)
  • MMCR Signal-to-Noise Ratio(SignaltoNoiseRatio)
nsammcrmode01v0091clothC1.c1:
  • MMCR Reflectivity(Reflectivity)
  • MMCR Spectral Width(SpectralWidth)
  • MMCR Mean Doppler Velocity(MeanDopplerVelocity)
  • MMCR Signal-to-Noise Ratio(SignaltoNoiseRatio)
nsammcrmonC1.a1:
  • Time Nanoseconds since the second(TimeNanoSeconds)
  • Radar PC -5V(RadarPCMinus5Volts)
  • Interface Box -15V(InterfaceBoxMinus15Volts)
  • IF Mod/Rec +15V(IFModPlus15Volts)
  • Interface Box +5V #1(InterfaceBoxPlus5Volts1)
  • 16.4GHz Phase-lock(16GHzPhaseLock)
  • Switch Fault(SwitchFault)
  • Radar PC +5V(RadarPCPlus5Volts)
  • Indoor Humidity(IndoorHumidity)
  • DMS PC -5V(DMSPCMinus5Volts)
  • A/D Calibrated Voltage(ADCalVoltage)
  • Interface Box +5V #2(InterfaceBoxPlus5Volts2)
  • RF CUD Transmitter +12V(RFCUDTxPlus12Volts)
  • IF Mod/Rec -15V(IFModMinus15Volts)
  • External IF Mod/Rec +12V(ExtIFModPlus12Volts)
  • Radar PC -12V(RadarPCMinus12Volts)
  • Radar PC +12V(RadarPCPlus12Volts)
  • Interface Box +28V(InterfaceBoxPlus28Volts)
  • Outdoor Temperature(OutdoorTemperature)
  • 2GHz Phase-lock(2GHzPhaseLock)
  • DMS PC +12V(DMSPCPlus12Volts)
  • Interface Box +15V(InterfaceBoxPlus15Volts)
  • RF CUD Receiver +12V(RFCUDRecPlus12Volts)
  • RF CUD +15V(RFCUDPlus15Volts)
  • DMS PC -12V(DMSPCMinus12Volts)
  • Temperature, Circulator #2(TempCirc2)
  • Indoor Temperature(IndoorTemperature)
  • Pulse Width Fault(PulseWidthFault)
  • Temperature, Circulator #1(TempCirc1)
  • External IF Mod/Rec +15V(ExtIFModPlus15Volts)
  • Interface Box -5V(InterfaceBoxMinus5Volts)
  • DMS PC +5V(DMSPCPlus5Volts)
nsammcrmode04v0061clothC1.c1:
  • MMCR Reflectivity(Reflectivity)
  • MMCR Mean Doppler Velocity(MeanDopplerVelocity)
  • MMCR Spectral Width(SpectralWidth)
  • MMCR Signal-to-Noise Ratio(SignaltoNoiseRatio)
nsammcrpowC1.a1:
  • Transmitted RF Power(TransmittedRFPower)
  • Time Nanoseconds since the second(TimeNanoSeconds)
nsammcrmomentsC1.a1:
  • Number of Coherent Integrations(NumCoherentIntegrations)
  • Rx bandwidtch switch code(Switch)
  • Delay to First Range Gate(StartGateDelay)
  • 10000 * [MeanDopperVelocity(m/s) / NyquistVelocity(m/s)](MeanDopplerValue)
  • Pulse Width(PulseWidth)
  • Number of Code Bits(NumCodeBits)
  • Inter-Pulse Period(InterPulsePeriod)
  • Signal to Noise Ratio(SignalToNoiseRatio)
  • Height of Center of Each Range Bin(Heights)
  • Number of Spectra Averaged(NumSpectraAveraged)
  • 10000 * [SpectralWidth(m/s) / NyquistVelocity(m/s)](SpectralWidthValue)
  • RadarWaveLength(m) / [4 * InterPulsePeriod(s) * NumCoherentIntegrations](NyquistVelocity)
  • Delay thgrough Rx(Delay)
  • Number of Gate Heights(NumHeights)
  • Number of Ffts(NumFft)
  • 1000 * log10 (noise signal level)(Noise)
  • Gate Spacing(GateSpacing)

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DQRID : D020927.1
Start DateStart TimeEnd DateEnd Time
12/01/1996000002/04/20002359
Subject:
SGP/ARSCL/C1 - ARSCL Cloud Bases and Low-level reflectivities
DataStreams:sgparscl1clothC1.c1, sgparsclbnd1clothC1.c1, sgparsclcbh1clothC1.c1
Description:
Prior to February 4, 2000, the ARSCL data set incorporated data from the
Beaufort Laser Ceilometer as one of its inputs.  Because of the BLC's
high spatial resolution, this data was often chosen by ARSCL as the
"CloudBaseBestEstimate" for boundary layer clouds. It was subsequently
determined that the BLC cloud base was biased, with the BLC reporting
cloud base heights that are 122 meters too high.

The bias error will be corrected when the entire ARSCL data set is
reprocessed as part of release_4.  (The release version number is included
the the netCDF global comments).   This reprocessing will also include a
small correction the the MMCR near-field reflectivities.  This correction
is less than 1 dB except for hydrometers within 200 meters of the surface.

Thanks to Roger Marchand for helping bracket this problem.
Measurements:sgparsclbnd1clothC1.c1:
  • LASER Cloud Base Height Best Estimate(CloudBaseBestEstimate)
sgparsclcbh1clothC1.c1:
  • BLC/VCEIL Clothiaux et al. Algorithm Cloud Base Height(CloudBaseCeilometerCloth)
  • BLC/VCEIL Standard Algorithm Cloud Base Height(CloudBaseCeilometerStd)
sgparscl1clothC1.c1:
  • MMCR Reflectivity(Reflectivity)
  • LASER Cloud Base Height Best Estimate(CloudBaseBestEstimate)
  • MMCR Best Estimate of Hydrometeor Reflectivity(ReflectivityBestEstimate)
  • BLC/VCEIL Standard Algorithm Cloud Base Height(CloudBaseCeilometerStd)
  • BLC/VCEIL Clothiaux et al. Algorithm Cloud Base Height(CloudBaseCeilometerCloth)

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