Unrotate the wind components.
It converts u and v components of vector quantities relative to the defined grid in the direction of increasing x and y coordinates to u and v components relative to easterly and notherly direction. The original fields are overwritten.
2976 call l4f_category_log(this(igrid)%category,l4f_debug,
"C grid: search U/V/T points:"//to_char(igrid)//to_char(jgrid))
2977 call l4f_category_log(this(igrid)%category,l4f_debug,
"C grid: test delta: "//to_char(step_lon_t)//to_char(step_lat_t))
2980 if (this(igrid)%griddim == this(jgrid)%griddim ) cycle
2982 if (this(igrid)%griddim%dim%nx == this(jgrid)%griddim%dim%nx .and. &
2983 this(igrid)%griddim%dim%ny == this(jgrid)%griddim%dim%ny )
then
2985 call get_val(this(jgrid)%griddim,xmin=xmin, xmax=xmax, ymin=ymin, ymax=ymax,proj_type=type)