Campbell CR850 - Figure 58: Mean Wind-Vector Graph

Section 7. Installation
192
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Figure 58: Mean wind-vector graph
where for polar sensors:
or, in the case of orthogonal sensors:
Resultant mean wind direction, Θu:
Standard deviation of wind direction, σ (Θu), using Campbell Scientific
algorithm:
The algorithm for σ (Θu) is developed by noting (FIGURE. Standard Deviation of
Direction
(p. 193) ) that
where