uvcurv2orth

rotation of u and v vectors from curvilinear grid to orthogonal grid

[ur,vr] = uvcurv2orth(x,y, u,v)

rotate curvilinear vector field to orthogonal vector field the output is calculated for the original curvilinear locations.
input:
x - a 2D array with x locations (long)
y - a 2D array with y locations (lat)
u - curvilinear direction u vector field
v - curvilinear direction v vector field
(1,1 is south west corner for all arrays)

output:
u and v arrays of the input array size with the vector components on orthogonal grid (long and lat)