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Campbell Scientific CR200/CR200X-series Dataloggers User Manual

Page 134

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Section 11. Programming Resource Library

Scalar mean horizontal wind speed, S:

where in the case of orthogonal sensors:

Unit vector mean wind direction,

where

or, in the case of orthogonal sensors

where

Standard deviation of wind direction (Yamartino algorithm)

where,

and Ux and Uy are as defined above.

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