10/6/13 7, twh
The Compared 2D sonics at 10m are nominally aligned with the 3m CSAT. I have measured the CSAT orientations with the DataScope. I will compare the wind directions of the 2D sonics with the CSATs to determine the orientation of the 2D sonics.
FAR:
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Time
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Dir.10m
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SD
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dir.3m
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SD
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10m-3m
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Spd.10m
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SD
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(deg)
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(deg)
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(deg)
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(deg)
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(deg)
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(m/s)
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(m/s)
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10/5 18:00 - 00:00
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338
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11
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326
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14
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12
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3.72
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0.54
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10/4 00:00 - 06:00
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304
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18
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299
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20
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5
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3.92
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0.76
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sonic 10m wind directions to 3m sonic in order to orient 2D sonics. Only used winds from +/- 20 degrees from CSAT u axis and 10m wind speeds > 3 m/s (at FAR).
Selected the median value of Dir.10m - dir.3m. At FAR this is 3.2 +/- 4.6 degrees. See attached. 
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