Data Quality Reports for Session: 124351 User: sayer Completed: 11/17/2009

TABLE OF CONTENTS

DQR IDSubjectData Streams Affected
D020823.37NSA/MMCR/C1 - Pulse controller failed due to water damagensaarscl1clothC1.c1, nsammcrcalC1.a1, nsammcrmode01v0091clothC1.c1,
nsammcrmode02v0061clothC1.c1, nsammcrmode03v0081clothC1.c1, nsammcrmode04v0061clothC1.c1,
nsammcrmomentsC1.a1, nsammcrmonC1.a1, nsammcrpowC1.a1
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
D020823.39NSA/MMCR/C1 - MUX failurensaarscl1clothC1.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
D080415.1TWP/ARSCL/C2 - Bad MMCR datatwparscl1clothC2.c1, twparsclbnd1clothC2.c1, twpmmcrmode01v0071clothC2.c1,
twpmmcrmode02v0041clothC2.c1, twpmmcrmode03v0051clothC2.c1, twpmmcrmode04v0041clothC2.c1


DQRID : D020823.37
Start DateStart TimeEnd DateEnd Time
06/04/1999043007/21/19992300
Subject:
NSA/MMCR/C1 - Pulse controller failed due to water damage
DataStreams:nsaarscl1clothC1.c1, nsammcrcalC1.a1, nsammcrmode01v0091clothC1.c1,
nsammcrmode02v0061clothC1.c1, nsammcrmode03v0081clothC1.c1, nsammcrmode04v0061clothC1.c1,
nsammcrmomentsC1.a1, nsammcrmonC1.a1, nsammcrpowC1.a1
Description:
Instrument had water damage that fried the pulse controller
card.  Images appear normal, but no clouds were detected
during this period because no radar pulse was being emitted.

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 Top Height of Lowest Detected Layer before Clutter Removal(RadarFirstTop)
  • MMCR Mode I.D.(ModeId)
  • Top Height of Hydrometeor Layer from Composite (MMCR/Clothiaux et al. MPL)
    Algorithms(CloudLayerTopHeightMplCloth)
  • MMCR Spectral Width(SpectralWidth)
  • MMCR Reflectivity with Clutter Removed(ReflectivityNoClutter)
  • Top Height of Hydrometeor Layer from Composite (MMCR/Campbell et al. MPL)
    Algorithms(CloudLayerTopHeightMplCamp)
  • MMCR Best Estimate of Hydrometeor Reflectivity(ReflectivityBestEstimate)
  • Bottom Height of Hydrometeor Layer from Composite (MMCR/Clothiaux et al. MPL)
    Algorithms(CloudLayerBottomHeightMplCloth)
  • MMCR Signal-to-Noise Ratio(SignaltoNoiseRatio)
  • MMCR Mean Doppler Velocity(MeanDopplerVelocity)
  • 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)
  • Peak Transmitted Power(PeakTransmittedPower)
  • Circulator #1 Attenuation(CirculatorAttenuation1)
  • Pulse Width(PulseWidth)
  • Number of Code Bits(NumCodeBits)
  • Gate Spacing(GateSpacing)
  • Number of Spectra Averaged(NumSpectraAveraged)
  • Height of Center of Each Range Bin(Heights)
  • Transmitter Path Loss(TransmitterPathLoss)
  • Receiver Path Loss(ReceiverPathLoss)
  • Partial Decoding Loss(PartialDecodingLoss)
  • Coded Pulse Loss(CodedPulseLoss)
  • Number of Coherent Integrations(NumCoherentIntegrations)
nsammcrmode03v0081clothC1.c1:
  • MMCR Mean Doppler Velocity(MeanDopplerVelocity)
  • MMCR Reflectivity(Reflectivity)
  • MMCR Signal-to-Noise Ratio(SignaltoNoiseRatio)
  • MMCR Spectral Width(SpectralWidth)
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 Mean Doppler Velocity(MeanDopplerVelocity)
  • MMCR Signal-to-Noise Ratio(SignaltoNoiseRatio)
  • MMCR Spectral Width(SpectralWidth)
nsammcrmonC1.a1:
  • External IF Mod/Rec +12V(ExtIFModPlus12Volts)
  • Radar PC -12V(RadarPCMinus12Volts)
  • Radar PC +12V(RadarPCPlus12Volts)
  • Interface Box +28V(InterfaceBoxPlus28Volts)
  • Time Nanoseconds since the second(TimeNanoSeconds)
  • Radar PC -5V(RadarPCMinus5Volts)
  • Interface Box -15V(InterfaceBoxMinus15Volts)
  • IF Mod/Rec +15V(IFModPlus15Volts)
  • 2GHz Phase-lock(2GHzPhaseLock)
  • Interface Box +5V #1(InterfaceBoxPlus5Volts1)
  • DMS PC +12V(DMSPCPlus12Volts)
  • Interface Box +15V(InterfaceBoxPlus15Volts)
  • RF CUD Receiver +12V(RFCUDRecPlus12Volts)
  • 16.4GHz Phase-lock(16GHzPhaseLock)
  • RF CUD +15V(RFCUDPlus15Volts)
  • DMS PC -12V(DMSPCMinus12Volts)
  • Temperature, Circulator #2(TempCirc2)
  • Switch Fault(SwitchFault)
  • Radar PC +5V(RadarPCPlus5Volts)
  • Pulse Width Fault(PulseWidthFault)
  • DMS PC -5V(DMSPCMinus5Volts)
  • Temperature, Circulator #1(TempCirc1)
  • A/D Calibrated Voltage(ADCalVoltage)
  • External IF Mod/Rec +15V(ExtIFModPlus15Volts)
  • Interface Box -5V(InterfaceBoxMinus5Volts)
  • Interface Box +5V #2(InterfaceBoxPlus5Volts2)
  • RF CUD Transmitter +12V(RFCUDTxPlus12Volts)
  • IF Mod/Rec -15V(IFModMinus15Volts)
  • 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)
  • Height of Center of Each Range Bin(Heights)
  • Number of Spectra Averaged(NumSpectraAveraged)
  • 10000 * [SpectralWidth(m/s) / NyquistVelocity(m/s)](SpectralWidthValue)
  • Rx bandwidtch switch code(Switch)
  • RadarWaveLength(m) / [4 * InterPulsePeriod(s) * NumCoherentIntegrations](NyquistVelocity)
  • Delay to First Range Gate(StartGateDelay)
  • 10000 * [MeanDopperVelocity(m/s) / NyquistVelocity(m/s)](MeanDopplerValue)
  • Delay thgrough Rx(Delay)
  • Number of Gate Heights(NumHeights)
  • Pulse Width(PulseWidth)
  • Number of Ffts(NumFft)
  • Number of Code Bits(NumCodeBits)
  • 1000 * log10 (noise signal level)(Noise)
  • Inter-Pulse Period(InterPulsePeriod)
  • Gate Spacing(GateSpacing)
  • Signal to Noise Ratio(SignalToNoiseRatio)

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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 : D020823.39
Start DateStart TimeEnd DateEnd Time
03/17/1999090003/18/19992359
Subject:
NSA/MMCR/C1 - MUX failure
DataStreams:nsaarscl1clothC1.c1, nsammcrcalC1.a1, nsammcrmode01v0091clothC1.c1,
nsammcrmode02v0061clothC1.c1, nsammcrmode03v0081clothC1.c1, nsammcrmode04v0061clothC1.c1,
nsammcrmomentsC1.a1, nsammcrmonC1.a1, nsammcrpowC1.a1
Description:
Data values dropped to background clear sky (noise level).
Other cloud instruments indicated it was cloudy. The MUX
card was replaced and good data started flowing again at 
00 GMT on 3/19.

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 Top Height of Lowest Detected Layer before Clutter Removal(RadarFirstTop)
  • MMCR Mode I.D.(ModeId)
  • Top Height of Hydrometeor Layer from Composite (MMCR/Clothiaux et al. MPL)
    Algorithms(CloudLayerTopHeightMplCloth)
  • MMCR Spectral Width(SpectralWidth)
  • MMCR Reflectivity with Clutter Removed(ReflectivityNoClutter)
  • Top Height of Hydrometeor Layer from Composite (MMCR/Campbell et al. MPL)
    Algorithms(CloudLayerTopHeightMplCamp)
  • MMCR Best Estimate of Hydrometeor Reflectivity(ReflectivityBestEstimate)
  • Bottom Height of Hydrometeor Layer from Composite (MMCR/Clothiaux et al. MPL)
    Algorithms(CloudLayerBottomHeightMplCloth)
  • MMCR Signal-to-Noise Ratio(SignaltoNoiseRatio)
  • MMCR Mean Doppler Velocity(MeanDopplerVelocity)
  • 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)
  • Peak Transmitted Power(PeakTransmittedPower)
  • Circulator #1 Attenuation(CirculatorAttenuation1)
  • Pulse Width(PulseWidth)
  • Number of Code Bits(NumCodeBits)
  • Gate Spacing(GateSpacing)
  • Number of Spectra Averaged(NumSpectraAveraged)
  • Height of Center of Each Range Bin(Heights)
  • Transmitter Path Loss(TransmitterPathLoss)
  • Receiver Path Loss(ReceiverPathLoss)
  • Partial Decoding Loss(PartialDecodingLoss)
  • Coded Pulse Loss(CodedPulseLoss)
  • Number of Coherent Integrations(NumCoherentIntegrations)
nsammcrmode03v0081clothC1.c1:
  • MMCR Mean Doppler Velocity(MeanDopplerVelocity)
  • MMCR Reflectivity(Reflectivity)
  • MMCR Signal-to-Noise Ratio(SignaltoNoiseRatio)
  • MMCR Spectral Width(SpectralWidth)
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 Mean Doppler Velocity(MeanDopplerVelocity)
  • MMCR Signal-to-Noise Ratio(SignaltoNoiseRatio)
  • MMCR Spectral Width(SpectralWidth)
nsammcrmonC1.a1:
  • External IF Mod/Rec +12V(ExtIFModPlus12Volts)
  • Radar PC -12V(RadarPCMinus12Volts)
  • Radar PC +12V(RadarPCPlus12Volts)
  • Interface Box +28V(InterfaceBoxPlus28Volts)
  • Time Nanoseconds since the second(TimeNanoSeconds)
  • Radar PC -5V(RadarPCMinus5Volts)
  • Interface Box -15V(InterfaceBoxMinus15Volts)
  • IF Mod/Rec +15V(IFModPlus15Volts)
  • 2GHz Phase-lock(2GHzPhaseLock)
  • Interface Box +5V #1(InterfaceBoxPlus5Volts1)
  • DMS PC +12V(DMSPCPlus12Volts)
  • Interface Box +15V(InterfaceBoxPlus15Volts)
  • RF CUD Receiver +12V(RFCUDRecPlus12Volts)
  • 16.4GHz Phase-lock(16GHzPhaseLock)
  • RF CUD +15V(RFCUDPlus15Volts)
  • DMS PC -12V(DMSPCMinus12Volts)
  • Temperature, Circulator #2(TempCirc2)
  • Switch Fault(SwitchFault)
  • Radar PC +5V(RadarPCPlus5Volts)
  • Pulse Width Fault(PulseWidthFault)
  • DMS PC -5V(DMSPCMinus5Volts)
  • Temperature, Circulator #1(TempCirc1)
  • A/D Calibrated Voltage(ADCalVoltage)
  • External IF Mod/Rec +15V(ExtIFModPlus15Volts)
  • Interface Box -5V(InterfaceBoxMinus5Volts)
  • Interface Box +5V #2(InterfaceBoxPlus5Volts2)
  • RF CUD Transmitter +12V(RFCUDTxPlus12Volts)
  • IF Mod/Rec -15V(IFModMinus15Volts)
  • 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)
  • Height of Center of Each Range Bin(Heights)
  • Number of Spectra Averaged(NumSpectraAveraged)
  • 10000 * [SpectralWidth(m/s) / NyquistVelocity(m/s)](SpectralWidthValue)
  • Rx bandwidtch switch code(Switch)
  • RadarWaveLength(m) / [4 * InterPulsePeriod(s) * NumCoherentIntegrations](NyquistVelocity)
  • Delay to First Range Gate(StartGateDelay)
  • 10000 * [MeanDopperVelocity(m/s) / NyquistVelocity(m/s)](MeanDopplerValue)
  • Delay thgrough Rx(Delay)
  • Number of Gate Heights(NumHeights)
  • Pulse Width(PulseWidth)
  • Number of Ffts(NumFft)
  • Number of Code Bits(NumCodeBits)
  • 1000 * log10 (noise signal level)(Noise)
  • Inter-Pulse Period(InterPulsePeriod)
  • Gate Spacing(GateSpacing)
  • Signal to Noise Ratio(SignalToNoiseRatio)

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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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DQRID : D080415.1
Start DateStart TimeEnd DateEnd Time
12/20/1999000012/29/19992359
Subject:
TWP/ARSCL/C2 - Bad MMCR data
DataStreams:twparscl1clothC2.c1, twparsclbnd1clothC2.c1, twpmmcrmode01v0071clothC2.c1,
twpmmcrmode02v0041clothC2.c1, twpmmcrmode03v0051clothC2.c1, twpmmcrmode04v0041clothC2.c1
Description:
The MMCR was not operating properly during this period so the data should not have been 
used in determining cloud boundaries or radar moments.
Measurements:twpmmcrmode01v0071clothC2.c1:
  • MMCR Reflectivity(Reflectivity)
  • MMCR Signal-to-Noise Ratio(SignaltoNoiseRatio)
  • MMCR Mean Doppler Velocity(MeanDopplerVelocity)
  • MMCR Spectral Width(SpectralWidth)
twparsclbnd1clothC2.c1:
  • 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)
  • 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)
twpmmcrmode02v0041clothC2.c1:
  • MMCR Signal-to-Noise Ratio(SignaltoNoiseRatio)
  • MMCR Mean Doppler Velocity(MeanDopplerVelocity)
  • MMCR Reflectivity(Reflectivity)
  • MMCR Spectral Width(SpectralWidth)
twparscl1clothC2.c1:
  • Top Height of Hydrometeor Layer from Composite (MMCR/Clothiaux et al. MPL)
    Algorithms(CloudLayerTopHeightMplCloth)
  • MMCR Reflectivity(Reflectivity)
  • MMCR Spectral Width(SpectralWidth)
  • MMCR Reflectivity with Clutter Removed(ReflectivityNoClutter)
  • MMCR Mean Doppler Velocity(MeanDopplerVelocity)
  • Top Height of Hydrometeor Layer from Composite (MMCR/Campbell et al. MPL)
    Algorithms(CloudLayerTopHeightMplCamp)
  • 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 Signal-to-Noise Ratio(SignaltoNoiseRatio)
  • Bottom Height of Hydrometeor Layer from Composite (MMCR/Campbell et al. MPL)
    Algorithms(CloudLayerBottomHeightMplCamp)
  • MMCR Best Estimate of Hydrometeor Reflectivity(ReflectivityBestEstimate)
twpmmcrmode03v0051clothC2.c1:
  • MMCR Signal-to-Noise Ratio(SignaltoNoiseRatio)
  • MMCR Reflectivity(Reflectivity)
  • MMCR Mean Doppler Velocity(MeanDopplerVelocity)
  • MMCR Spectral Width(SpectralWidth)
twpmmcrmode04v0041clothC2.c1:
  • MMCR Reflectivity(Reflectivity)
  • MMCR Signal-to-Noise Ratio(SignaltoNoiseRatio)
  • MMCR Spectral Width(SpectralWidth)
  • MMCR Mean Doppler Velocity(MeanDopplerVelocity)

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