Data Quality Report for Order ID: 186918
User ID: wangm1    Date completed: 2017-07-26
All DQRs
DQR ID Subject Affected Data Streams Data Quality Metric
D121018.1 SGP/KASACR/C1 - Reprocessed and Corrected: Mean Doppler Velocity sign reversed sgpkasacrrhiC1.a1 Reprocessed
 
DQR ID: D121018.1    (Back to Top)
Start Date Start Time End Date End Time Data Quality Metric
2011-03-14 14:00:00 2012-12-14 20:16:00 Reprocessed
Subject: SGP/KASACR/C1 - Reprocessed and Corrected: Mean Doppler Velocity sign reversed
Affected Datastreams: sgpkasacrrhiC1.a1
Description DATA REPROCESSED and CORRECTED: The signs of the mean_doppler_velocity field values were incorrect. The ARM convention for this field is that positive velocities indicate motion away from the radar. However, the velocity data in these files had their signs reversed, so that motion TOWARD the radar had a positive sign. The data was modified and archived in July 2017. Please retrieve the modified data for use in your analysis. You may find these data using the ARM Discovery tool at the following link: http://www.archive.arm.gov/discovery/#v/results/s/finst::kasacr/ffac::sgp.C1 ORIGINAL DQR CATEGORY: Yellow - Suspect REPROCESSED and CORRECTED DATA ARCHIVED: 2017-07 REPROCESS IDENTIFICATION NUMBER: RID 837 --------------------------------------------------- --- ORIGINAL DQR 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. --------------------------------------------------- --- ORIGINAL DQR 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
  • mean_doppler_velocity (Mean Doppler velocity)