Wind speed is required by SWAT+ when the Penman-Monteith equation is used to calculate potential evapotranspiration. Mean daily wind speed is generated in SWAT+ using a modified exponential equation:
1.3.6.1
where is the mean wind speed for the day (m s), is the average wind speed for the month (m s), and is a random number between 0.0 and 1.0.
Table 1:3-6: SWAT+ input variables that pertain to generation of wind speed.
Definition | Source Name | Input Name | Input File |
---|---|---|---|
Wind speed input: 'sim' for simulated or gage name
wgage
wnd
: Average wind speed in month (m/s)
windav
wnd_ave