DQRID : D070411.3
Start DateStart TimeEnd DateEnd Time
09/26/2006000004/05/20071659
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Subject:
SGP/RWP/C1 - no moments data are available
DataStreams:sgp915rwpwindmomC1.a0, sgp915rwptempmomC1.a0
Description:
When the upgrade to the Central Facility rwp was installed, the interpretation of the 
configuration file changed  such that it became necessary to explicitly require that moments 
data be saved within the raw spectral data file.  Previously this was not true.   The 
ingest operates in such a way that it just goes a certain number of bytes into the spectral 
data and takes the following section.  Thus bogus moments data files were bing ingested 
that had essentially no usable information insofar as moments data are concerned.  Thus 
there are no usable moments data files from this time period.  At this time I have not been 
able to determine a method to recreate the raw moments files from the spectral data in 
any straightforward manner that would result in files with the precise format as presently used.
Suggestions: 
null
Measurements:sgp915rwpwindmomC1.a0:
  • 1000 * log10(noise signal level)(noise)
  • Number of Valid Heights(nheight)
  • Oblique FFT bandwidth(oband)
  • Height of center of last range gate(rgl)
  • Number of Coherent Samples/Spectral Point(ncoh)
  • Pulse repetition frequency(prf)
  • North Latitude(lat)
  • Spectral Width: vert velocity(specw)
  • Range gate spacing(rgs)
  • Sample Rate(sampr)
  • Height Index(range_gate)
  • lon(lon)
  • base time in epoch(base_time)
  • Rx Bandwidth Switch Code(bswitch)
  • Individual Spectrum Integration Time(sitime)
  • Vertical FFT Bandwidth(vband)
  • Radial Velocity Spectral Resolution(vsr)
  • Time Domain Integration Time(tditime)
  • Height of Center of First Range Gate(rgf)
  • Beam Number(beam)
  • Number of Individual Spectra/Average Spectrum(nspc)
  • Signal-to-noise-ratio(snr)
  • Ave Time per Average Spectra. Also known as dwell.(spcavetime)
  • Time offset from base_time(time_offset)
  • Beam Elevation Angle(elevation)
  • Pulse length(plen)
  • Array of heights for each sample time(height_t)
  • -180.0 - +180.0(alt)
  • Interpulse period(ipp)
  • Number of pulse code bits(pcbits)
  • Mean atmospheric vertical velocity(mdf)
  • Delay Time to 1st Gate(dly)
more
sgp915rwptempmomC1.a0:
  • Height(height)
  • Signal-to-noise-ratio(snr)
  • Sample Rate(sampr)
  • base time in epoch(base_time)
  • Mean atmospheric vertical velocity(mdf)
  • 1000 * log10(noise signal level)(noise)
  • -180.0 - +180.0(alt)
  • Spectral Width: vert velocity(specw)
  • Range gate spacing(rgs)
  • North Latitude(lat)
  • Time offset from base_time(time_offset)
  • Beam 0 virtual temperature(virtual_temp)
  • lon(lon)
  • Acoustic Spectral Width(sspecw)
  • Mean Sound Speed(smdf)
  • Signal to Noise Ratio: acoustic(ssnr)
more

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