wind_speed_height_correction#
- hydrometlib.evapotranspiration.wind_speed_height_correction(ws, measured_height)[source]#
Convert wind speed to 2m height [m s-1]
\[u_2 = u_z \cdot \frac{4.87}{\ln(67.8 \, z - 5.42)}\]where \(u_z\) is the wind speed measured at height \(z\) [m].
References
FAO-56 Chapter 3 (eq. 47) https://www.fao.org/4/x0490e/x0490e07.htm#wind%20profile%20relationship
- Parameters:
ws (
Expr) – Wind speed measured atmeasured_height[m s-1]measured_height (
Expr) – Site attribute - height above ground the wind was measured at [m]
- Return type:
Expr- Returns:
Expression or Series to calculate wind speed height correction