Data Quality Reports for Session: 178367 User: jgreen Completed: 07/11/2016

TABLE OF CONTENTS

DQR IDSubjectData Streams Affected
D140404.2TMP/MWACR/M1 - Instrument failuretmpmwacrM1.a1
D140506.3TMP/MWACR/M1 - Snow BuilduptmpmwacrM1.a1
D140905.6TMP/MWACR/M1 - Software failuretmpmwacrM1.a1
D150417.10TMP/MWACR/M1 - Possible antenna offset from zenithtmpmwacrM1.a1


DQRID : D140404.2
Start DateStart TimeEnd DateEnd Time
03/12/2014120003/25/20141559
Subject:
TMP/MWACR/M1 - Instrument failure
DataStreams:tmpmwacrM1.a1
Description:
During this period, there were gaps in the data due to restarts and subsequent computer 
hangups.  During this period, the radar clutter filter was not turned on causing a noisy 
signal when there were no significant radar returns.
Measurements:tmpmwacrM1.a1:
  • noise_figure
  • gain
  • Mean Doppler Velocity(mean_doppler_velocity)
  • Spectral width(spectral_width)
  • noise_sky
  • Daily values of reflectivity on each grid cell(reflectivity)

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DQRID : D140506.3
Start DateStart TimeEnd DateEnd Time
02/02/2014000002/03/20142359
03/19/2014000003/20/20142359
Subject:
TMP/MWACR/M1 - Snow Buildup
DataStreams:tmpmwacrM1.a1
Description:
There was potentially a build up of snow on the instrument causing large differences in 
the reflectivity as compared with the KAZR.
Measurements:tmpmwacrM1.a1:
  • Mean Doppler Velocity(mean_doppler_velocity)
  • Spectral width(spectral_width)
  • Daily values of reflectivity on each grid cell(reflectivity)

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DQRID : D140905.6
Start DateStart TimeEnd DateEnd Time
08/12/2014000008/17/20140628
08/01/2014072008/11/20141153
Subject:
TMP/MWACR/M1 - Software failure
DataStreams:tmpmwacrM1.a1
Description:
MWACR software failed during these periods
Measurements:tmpmwacrM1.a1:
  • Pitch angle of the ship(pitch)
  • Roll: starboard down positive(roll)
  • Altitude above mean sea level(alt)
  • North latitude(lat)
  • gps_timestamp
  • Mean Doppler Velocity(mean_doppler_velocity)
  • Pressure, associated geometric height, at altitude, NGM model output(height)
  • polarization
  • time
  • base_time
  • Heave: up positive(heave)
  • gps_velocity
  • East longitude(lon)
  • noise_figure
  • gain
  • gps_heading
  • Sway: toward port positive(sway)
  • Spectral width(spectral_width)
  • Heading from geodetic north, clockwise bow rotation(yaw)
  • noise_sky
  • time_offset
  • Surge: bow forward positive(surge)
  • Daily values of reflectivity on each grid cell(reflectivity)

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DQRID : D150417.10
Start DateStart TimeEnd DateEnd Time
01/12/2014000009/13/20142359
Subject:
TMP/MWACR/M1 - Possible antenna offset from zenith
DataStreams:tmpmwacrM1.a1
Description:
A preliminary analysis of vertically-pointing Doppler velocity from all four radars at the 
site (KAZR, MWACR, KaSACR and XSACR) suggests that MWACR may have  a systematic velocity 
bias.  The bias appears to depend on height and wind profile,  suggesting it could be 
caused by mispointing of the MWACR.  A more detailed study of the radars plus  sounding 
information indicates the MWACR is mispointed by approximately 1 degree from zenith, into 
azimuth direction of 75 degrees from North.
Measurements:tmpmwacrM1.a1:
  • Mean Doppler Velocity(mean_doppler_velocity)
  • Spectral width(spectral_width)
  • Daily values of reflectivity on each grid cell(reflectivity)

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