Etopo website has removed the XYZ output format. In order to convert the GeoTIFF files into the conventional XYZ files for the numerical model, such as COMCOT tsunami model, I wrote a simple m code for converting GeoTIFF to XYZ.
Tso-Ren (2021). geotiff2xyz (https://www.mathworks.com/matlabcentral/fileexchange/88957-geotiff2xyz), MATLAB Central File Exchange. Retrieved .
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