DQRID : D121018.3
Start DateStart TimeEnd DateEnd Time Data Quality Metric
03/14/2011140012/14/20122024Suspect
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Subject:
NSA/KASACR/C1 - Mean Doppler Velocity sign reversed
DataStreams:nsakasacrppiC1.a1, nsakasacrspeccmaskcopolC1.a0, nsakasacrrhiC1.a1, nsakasacrawrhiC1.a1,
nsakasacrvptC1.a1, nsakasacrspeccmaskxpolC1.a0, nsakasacrcwrhiC1.a1,
nsakasacrhsrhiC1.a1, nsakasacrblrhiC1.a1
Description:
The signs of the mean_doppler_velocity field values are incorrect.  The ARM convention 
for this field is that positive velocities indicate motion away from the radar.  However, 
the velocity data in these files have their signs reversed, so that motion TOWARD the 
radar has a positive sign.
Suggestions: 
Multipy the mean_doppler_velocity values by -1 prior to using the data.  This will 

result in motion away from the radar having a positive sign.
Measurements:nsakasacrblrhiC1.a1:
  • mean_doppler_velocity
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nsakasacrppiC1.a1:
  • mean_doppler_velocity
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nsakasacrcwrhiC1.a1:
  • mean_doppler_velocity
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nsakasacrspeccmaskcopolC1.a0:
  • mean_doppler_velocity
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nsakasacrvptC1.a1:
  • mean_doppler_velocity
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nsakasacrhsrhiC1.a1:
  • mean_doppler_velocity
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nsakasacrspeccmaskxpolC1.a0:
  • mean_doppler_velocity
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nsakasacrrhiC1.a1:
  • mean_doppler_velocity
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nsakasacrawrhiC1.a1:
  • mean_doppler_velocity
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