Campbell-scientific CR3000 Micrologger Manuale Utente Pagina 196

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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, u:
Standard deviation of wind direction, (u), using Campbell Scientific
algorithm:
The algorithm for (u) is developed by noting (FIGURE. Standard Deviation of
Direction
(p. 197) ) that
where
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