bas Posted February 9, 2015 Share Posted February 9, 2015 Hi there, i have 'U' and 'V' wind components and wants to calculate monthly and seasonal average wind driection. I wonder what is the best way to do it? Thanks, Bas Link to comment Share on other sites More sharing options...
MONS Posted February 9, 2015 Share Posted February 9, 2015 Try this. Convert observed wind direction in degrees to radians Compute for each observation... N/S direction = y = cos(radians) * wind speed E/W direction = x = sin(radians) * wind speed Sum all Ys Sum all Xs Solve Excel function atan2(sum(x),sum(y)) Convert resultant to degrees If degrees < 0, add 360 Link to comment Share on other sites More sharing options...
bas Posted February 11, 2015 Author Share Posted February 11, 2015 Thanks a lot MONS, I will give it a try. Cheers, Link to comment Share on other sites More sharing options...
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