HYCOM

hycom_1.ncl: A simple color plot.

gsn_csm_contour_map_ce is the plot interface that creates a contour plot on a cylindrical equidistant projection.

cnFillOn = True, turns on the color while cnLinesOn = False, turns off the contour lines

hycom_2.ncl: A slice plot.

gsn_csm_contour is the plot interface that creates a contour plot.

trYReverse is the resource that will reverse the y-axis.