Add computation of sine and cosine of wind rotation angle at U and V points
This commit adds code in geogrid to compute the sine and cosine of the wind
rotation angle at the U- and V-staggered points in the grid. The new fields
are written to geogrid output as SINALPHA_U, COSALPHA_U, SINALPHA_V, and
COSALPHA_V. These fields are currently only used by the code to initialize
WRF from MPAS output.
M geogrid/src/process_tile_module.F
M geogrid/src/output_module.F
git-svn-id: https://svn-wrf-wps.cgd.ucar.edu/trunk@942 86b71a92-4018-0410-97f8-d555beccfc3a