DQRID : D000504.5
Start DateStart TimeEnd DateEnd Time
11/25/1999045004/02/20000000
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Subject:
TWP/SMET/C1 - Wind Direction alignment method
DataStreams:twpsmet60sC1.a1, twpsmet60sC1.b1, twpsmet60sC1.00
Description:
During RESET10 we discovered a problem with wind direction from WIND1 (upper
anemometer).  During RESET8, WIND1 was corrected by rotating the alignment
ring instead of the anemometer.  This resulted in a better agreement between
the 2 anemometers, but is not the correct way to align an anemometer. The
alignment ring was readjusted for true north and the anemometer reset in
the proper slot (the original problem).
Suggestions: 
Data should be unaffected.
Measurements:twpsmet60sC1.b1:
  • Wind #1 speed vector average(wind1_spd_vec_avg)
  • Wind #1 direction vector average(wind1_dir_vec_avg)
  • Wind #1 direction standard deviation(wind1_dir_sd)
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twpsmet60sC1.a1:
  • Wind #1 direction standard deviation(wind1_dir_sd)
  • Wind #1 speed vector average(wind1_spd_vec_avg)
  • Wind #1 direction vector average(wind1_dir_vec_avg)
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twpsmet60sC1.00:
  • (Raw data stream - documentation not supported)
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