Install gmt-dcw by entering the following commands in the terminal:
sudo apt update sudo apt install gmt-dcw
Description:
Digital Chart of the World (DCW) for GMT
DCW-GMT is an enhancement to the original 1:1,000,000 scale vector basemap of the world available from the Princeton University Digital Map and Geospatial Information Center and from GeoCommunity at http://data.geocomm.com/readme/dcw/dcw.html. This data is for use by GMT, the Generic Mapping Tools.
Homepage: http://www.soest.hawaii.edu/pwessel/dcw/index.html
Version: 1.1.3-1
Section: universe/science