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[netCDF #IKQ-879398]: caluclating wind direction from U and V components

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  • Subject: [netCDF #IKQ-879398]: caluclating wind direction from U and V components
  • Date: Mon, 25 Jun 2007 13:02:42 -0600
Hi Rich,

If you're using NCO operators like ncap, then the atan() function returns its 
result in radians, not degrees, so you should adjust your formula 
appropriately.  That seems like a reasonable way to do it.  I think this would 
not necessarily be a good question for the netcdfgroup mailing list, because 
it's not really about netCDF, but about converting from cartesian to polar 
coordinates. There also may be some knowledge needed of whether the u and v 
components of wind speed are relative to the grid or relative to true north and 
true east.

--Russ

Russ Rew                                         UCAR Unidata Program
address@hidden                     http://www.unidata.ucar.edu



Ticket Details
===================
Ticket ID: IKQ-879398
Department: Support netCDF
Priority: Normal
Status: Closed