NSA/TWR/C1 - Wind sensor data failures

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.

• Quality check results on field: Wind speed arithmetic mean(qc_wspd_arith_mean)
• Quality check results on field: Wind speed vector mean(qc_wspd_vec_mean)
• Quality check results on field: Wind direction vector mean(qc_wdir_vec_mean)
• Wind speed vector mean(wspd_vec_mean)
• Wind speed arithmetic mean(wspd_arith_mean)
• Wind direction vector mean standard deviation(wdir_vec_std)
• Wind direction vector mean(wdir_vec_mean)