Hi Jimmy, I found your post very informative, so I was hoping you could help me with a problem. I'm having issues attempting to plot a ship track on top of an already made geotiff image from Antarctica. The issue i believe is that it is stereographic, so i cannot use geotiff2mstruct. I am able to get the track on the ice image using profwd however the track is not exactly in the right spot. Also I cannot figure out how to get the latitude and longitude on the axes, the file has intrinsic or world x,y. Any advice?