DQRID : D100208.14
Start DateStart TimeEnd DateEnd Time Data Quality Metric
01/25/2010142002/05/20102100Incorrect
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Subject:
NSA/TWR/C1 - Wind sensor data failures
DataStreams:nsatwrC1.b1
Description:
The wind speed and direction values for 2m, 10m and 20m dropped to zero at 14:20 GMT. The 
cause was a power failure due to failed power line.  Power spikes caused the wind sensors 
to revert to default settings for communications and measurements. The following is a 
list of dates that the various sensors came back online:
  2m wind problem ending on 01/28/2010 @ 2330GMT
 20m wind problem ending on 02/04/2010 @ 2230GMT
 10m wind problem ending on 02/05/2010 @ 2100GMT
  
40m winds were already failing and documented in DQPR 2262 and PIF P091030.1.  

The MET system was also affected and documented in DQPR 2337.
Suggestions: 
Measurements:nsatwrC1.b1:
  • qc_wspd_arith_mean
  • qc_wspd_vec_mean
  • qc_wdir_vec_mean
  • wspd_vec_mean
  • wspd_arith_mean
  • wdir_vec_std
  • wdir_vec_mean
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