Figure 60: mean wind-vector graph – Campbell Scientific CR3000 Micrologger User Manual
Page 196
Section 7. Installation
196
Figure 60: 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. 197)
) that
where
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