Subject: | NSA/MMCR/C1 - Sensitivity Loss, Calibration Wrong |
DataStreams: | nsammcrspecmomC1.a0, nsammcrmomC1.00, nsammcrmomC1.b1
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Description: | Jay Mace compared data from CLOUDSAT to the MMCR and found significant discrepancies. It
appears that the MMCR has a sensitivity problem and is underreporting reflectivity by ~20
dBZ. A comparison with the MPL shows that this might be a gradual degradation, i.e.
there are no apparent shifts identifying when this might have occured. |
Suggestions: | Don't use the data until the problem is resolved. |
Measurements: | nsammcrmomC1.b1: - DataQualityStatus
- MinimumDetectableReflectivity
- AvgNoiseLevel
- NumFFT
- TWTStatusCode
- NumHeights
- CircularDepolarizationRatio
- ModeNum
- PulseWidth
- CalCheckLevel
- WindowingONOFF
- RadarConstant
- ReceiverMode
- alt
- base_time
- lat
- Reflectivity
- ModeDescription
- InterPulsePeriod
- lon
- ReceiverNumber
- DCFilterONOFF
- RxGain
- RangeCorrectedPower
- GateSpacing
- StartGateDelay
- NumSpectralAverages
- PeakTransmittedPowerAvg
- Rx290KLevel
- SpectralWidth
- NumCoherentIntegrations
- NoiseLevel
- TimeAvg
- Power
- time_offset
- ClutterHeight
- SkyNoiseLevel
- NumReceivers
- NyquistVelocity
- heights
- time
- SignalToNoiseRatio
- MeanDopplerVelocity
- RxCalTimeStamp
- CalCheckTime
- NumCodeBits
more
nsammcrspecmomC1.a0: - DataQualityStatus
- ClutterHeight
- Rx290KLevel
- StartGateDelay
- RadarConstant
- CalCheckLevel
- NumSpectralAverages
- RangeCorrectedPower
- SignalToNoiseRatio
- AvgNoiseLevel
- NumCodeBits
- Power
- Elevation
- ModeDescription
- NoiseLevel
- CircularDepolarizationRatio
- base_time
- WindowingONOFF
- ModeNum
- InterPulsePeriod
- CalibrationConstant
- RxCalTimeStamp
- GateSpacing
- Reflectivity
- NumCoherentIntegrations
- NumFFT
- RxGain
- MinimumDetectableReflectivity
- Heights
- time_offset
- NyquistVelocity
- NumHeights
- SpectralWidth
- PulseWidth
- lon
- DCFilterONOFF
- SkyNoiseLevel
- ReceiverMode
- MeanDopplerVelocity
- lat
- alt
- CalCheckTime
- NumReceivers
- ReceiverNumber
- Azimuth
- Spectra
more
nsammcrmomC1.00: - Raw data stream - documentation not supported
more
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