I have a point shapefile, with each point representing the location of a weather station and storing values for wind SPEED and DIRECTION (in degrees).
My goal is to create a continous surface (raster) for wind direction by interpolating the two wind's components (X and Y) derived using the sine and cosine of the wind direction as described here: http://mmc2.geofisica.unam.mx/cursos/geoest/Articulos/Geostatistics/Non-Linear%20Surface%20Interpolations.htm:
where H is the wind speed, q is the wind direction (in degrees).
I did some web searches, and I found a very good comment from @whuber (Generating wind direction raster using its U and V components in ArcGIS Desktop?), who was suggesting to use the ATan2 function.
Would the following formula (where v and u are the two wind's components, corresponding to the Y and X components in the first cited web source) suffice to achieve the mentioned goal?:
(ATan2(v, u) / (2*3.14159265) + 0.5) * 360