DQRID : D150424.13
Start DateStart TimeEnd DateEnd Time
02/11/2015162007/07/20152200
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Subject:
OLI/RWP/M1 - Instrument slightly out of alignment
DataStreams:oli915rwpwindspecM1.a0, oli915rwpwindmomM1.a0, oli915rwpwindconM1.a1
Description:
Instrument is slightly out of alignment, by less than 2.5 deg:
Measurement of the alignment was made on the clutter fence and results in ambiguous 
results because the clutter fence was under stress, i e. it was "bent" somewhat; the antenna 
itself was not directly accessed.  The best estimate is that the antenna itself was tilted 
downward toward the west at approximately 2 degrees.  This is withing the directional 
accuracy of the instrument.  The vertical measurements will be affected by this tilt by a 
small amount.of the wind, positive toward the east.
Suggestions: 
null
Wcorrected = Wmeasured X (1 + (U) X 0.03), where U = west component
Measurements:oli915rwpwindmomM1.a0:
  • Array of heights for each sample time(height_t)
  • Beam azimuth angle(beam_azimuth)
  • Beam elevation angle(beam_elevation)
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oli915rwpwindconM1.a1:
  • Averaging interval(avgint)
  • Beam 3 radial wind speed(vel3)
  • Beam 4 radial wind speed(vel4)
  • V wind component(v_wind)
  • Beam 0 radial wind speed(vel0)
  • Beam 1 radial wind speed(vel1)
  • Easterly Wind Component(u_wind)
  • Beam 2 radial wind speed(vel2)
  • Height Index(range_gate)
  • Array of heights for each sample time(height_p)
more
oli915rwpwindspecM1.a0:
  • Beam azimuth angle(beam_azimuth)
  • Array of heights for each sample time(height_t)
  • Beam elevation angle(beam_elevation)
more

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