Geotiff reprojection from WGS84 to GRS80 ellipsoid shows no curvature
Looking to take this geotiff...
https://cdn.star.nesdis.noaa.gov/GOES16/ABI/FD/GEOCOLOR/GOES16-ABI-FD-GEOCOLOR-10848x10848.tif
... & make it look like the images shown on the g16 full disk page here:
https://www.star.nesdis.noaa.gov/goes/fulldisk.php?sat=G16
The geotiff loads fine, but when I reproject to GRS80, save .png with .prj data, unload all, then open the .png, I see no curvature on the latitudnal lines.
What's the trick to get this to work?
Answers
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Perhaps the better question would be, how to get GM to export a raster in the globe view with curvature of the earth?
I need the exported projection to display spherically like the images below.
The thumbnail on our ingest software shows the goes east view as GRS80.
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Got it... reprojected to Orthographic & specified central longitude & latitude for map center. It certainly wasn't GRS80.
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Of course... spoke too soon.
The projection is not orthographic either. Needs to show curvature on both lat & lon grid lines. Tried Azimuthal Equidistant & Gnomonic... still can't get the fulldisk geotiff to rectify & match fulldisk jpeg downloads from star.nesdis site.
Also tried some G16 netCDF files from here...
https://home.chpc.utah.edu/~u0553130/Brian_Blaylock/cgi-bin/goes16_download.cgi
Getting unsupported HDF5 dataset on open data with GM.
Frustrating. Thanks NOAA... just need an geotiff example matching the projection shown in your image downloads.
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