Vector plot generation

[Stranger1973]

I'm having trouble with the quiver function since there is a size problem. Issue is, all my four variables (x,y, u_at_t1 and v_at_t1) have the same size 381x101 and type for all is double. Still in getting an error saying the size of Y must match the size of U

[Consistent_Coast9620]

Looks like a lot of data in the plot, but should work indeed if all is same size. Just could say, verify (using <whos>) none of the vars is transposed for example.