DQRID : D130718.4
Start DateStart TimeEnd DateEnd Time
06/26/2012000007/10/20131600
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Subject:
NSA/KASACR/C1 - Reprocess: Intermittent missing spectra data
DataStreams:nsakasacrspeccmaskxpolC1.a0, nsakasacrspeccmaskcopolC1.a0
Description:
Raw spectra file sizes were being unintentionally limited due to an entry in a radar 
configuration file, causing spectra file splits during data collection.  However, the 
corresponding moments files were not splitting. During the ingest and cloud masking processing, 
when spectra files were being matched with corresponding raw moments files, only the first 
spectra file in a vertically-pointing scan period was matching with the a moments file.  
This caused the remaining (usually two) size-limited spectra files not to be ingested. 
Generally, spectra for only 10 minutes of each 25-minute vertically pointing time period 
have been ingested.  The remaining spectra files remain in raw format at the archive.
Suggestions: 
null
Measurements:nsakasacrspeccmaskcopolC1.a0:
  • Mean doppler velocity(mean_doppler_velocity)
  • North Latitude(lat)
  • Beam Elevation Angle(elevation)
  • Locator Mask for Spectra(locator_mask)
  • Spectral velocity bins(velocity_bins)
  • lon(lon)
  • time_in_seconds_since_volume_start(time)
  • base time in epoch(base_time)
  • Time offset from base_time(time_offset)
  • Signal-to-noise ratio(signal_to_noise_ratio)
  • reflectivity(reflectivity)
  • Doppler spectrum width (second moment of the doppler spectrum)(spectral_width)
  • Distance to the center of the corresponding range bin(range)
  • Azimuth of Radar Ray(azimuth)
  • Spectra(spectra)
  • -180.0 - +180.0(alt)
more
nsakasacrspeccmaskxpolC1.a0:
  • Locator Mask for Spectra(locator_mask)
  • -180.0 - +180.0(alt)
  • Time offset from base_time(time_offset)
  • reflectivity(reflectivity)
  • Azimuth of Radar Ray(azimuth)
  • base time in epoch(base_time)
  • Spectra(spectra)
  • Signal-to-noise ratio(signal_to_noise_ratio)
  • Doppler spectrum width (second moment of the doppler spectrum)(spectral_width)
  • Mean doppler velocity(mean_doppler_velocity)
  • lon(lon)
  • Distance to the center of the corresponding range bin(range)
  • Beam Elevation Angle(elevation)
  • Spectral velocity bins(velocity_bins)
  • North Latitude(lat)
  • time_in_seconds_since_volume_start(time)
more

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