Geoid heat map from file using pygmt

Q&A PyGMT Q&A
1

Hello,
I have a csv file with: latitude, longitude, geoid_height
I have troubles finding a solution for how I can plot a map showing the geoid height for earth (or any location really) as a “heat map” Is there any good resources (examples or videos) of how i can do this?
I tried searching for a while, but did not find what I was looking for :confused:
Appreciate the help

2

Hi @gis_sebb!! Welcome to the GMT Forum!!

What type of map do you want to make? If you want a heat-map type, then in this forum there are many posts.

1 Like
3

Thanks for the reply @Esteban82 :grinning:

geoid_height_model
geoid_height_model800×468 51.6 KB

I was thinking something like this.
I was searching in the forum, but did not find something similar. Maybe I have not looked enough or for the right topic (?)

4

Maybe drop the name heat map. That’s not something we use around here. Search for grdimage. There are lots of examples. But to start with you need a grid with the data (not a heat :grinning_face_with_smiling_eyes:)

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5

@Joaquim Yeah that makes more sense, heatmap is definitely not the right term, hehe!:slight_smile:
grdimage is probably what i need! I will look for that, thanks