[Wrf-users] Doubt regarding Wind speed measurement in WRF-ARW model output

[dipak sahu]

Dear sir
   I've one doubt regarding wind speed calculation in WRF-ARW model output
by using GrADS. I'm using WRF-ARW model since last 2-3yrs for my PhD pupose.
Always it one doubt in my mind regading the calculation of wind speed and
wind direction in model output through GrADS.
1- Suppose history interval was set in my model run as 1hr,and after
postprocessing i want to know the wind speed at t=12th hour of forecast. So
how it gives the value? Is it gives the instant wind speed value at that
time or the average wind speed of some past time? Because after my model
comparison with observation , I found that the observation wind speed and
model wind speed has a huge gap.

with regards

Dipak


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