Vaisala AWS330 - Wind Calculation Formulas; Wind Speed Average

User's Guide ______________________________________________________________________
280 _________________________________________________________________ M211296EN-A
Wind Calculation Formulas
Wind Speed Average
Instant wind speed average is calculated using the following formula (3 s
calculation):



n
i
i
nWSWSA
1
/)(
where
WSA = Wind speed average
Ws
i
= Wind speed instant value
N = Number of wind speed instant values
When the source is a calculated data table, the following formula is used
(2 and 10 minute calculations):



n
i
i
nWSATWSA
1
/)( (16)
where
WSA = Wind speed average
WSAT
i
= Wind speed average stored to data table
n = Number of wind speed average values