Formula for wind speed and direction - U V vectors

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Formula for wind speed and direction - U V vectors

Postby mt_tech » Mon Nov 26, 2018 6:12 pm

I have been searching around to find a formula or script that calculates wind speed and directions from the u and V vectors that the WRF model outputs.

To my surprise this is not as straight forward as I thought it would be.
First of all I found this article http://www-k12.atmos.washington.edu/~ov ... winds.html that states that I have to perform a calculation on each vector in order to align them properly.

Then again the same article has no formula that actually calculates the wind speed and direction.
Can anyone point me to a resource that presents a scripts that takes U10 and V10 and actually calculates:
a. wind speed in m/s
b. wind direction from true north
mt_tech
 
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