, with the contents of four lines changed to

vsz= 0.06  ; Size (length) of reference vector
vsp=  4.   ; Speed         of reference vector
vd = 0.02   ; Distance between vectors
curly_on= 1 ;

in order to modify the sizes of the vectors. The figure below was then made by issuing the command:

transport.sh 4dmap hycom_031_uv.nc hycom_031_h.nc u v thknss 18 120

Example 2: As example 1, but with more contours

The next figure was made by issuing the same command as in Example 1, after the file userdef.ncl was copied from