I want to put my data on a map with coastline but I don't know how to do it.(adsbygoogle = window.adsbygoogle || []).push({});

my data has a value on each (lat, lon). I can draw the figure by surf command and indicate it's coordinate by using meshgrid. I want this figure contains coastline so I used hold on to keep the original figure and then draw a coastline by gshhs command onto this diagram.

But this doesn't work. all I've got is a single vertical line in the figure. Anyone has an idea how to improve?

Thanks a lot in advance.

forgot to say, I'm doing all these on matlab

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# Mesh my data with latitude and longitude

Can you offer guidance or do you also need help?

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