The MeritDEM implements its own getSamples function because of the custom HDF5 format the DEM is stored in. But this means that when the supplied coordinates are not in the same CRS as the the MeritDEM, there is no transform applied. Another way to say it is that the lat and lon supplied to the MeritDEM are assumed to be in the CRS of the MeritDEM and it is incumbent on the caller to perform the transform.
Since ICESat-2 is the primary source of coordinates for sampling the MeritDEM, this is not currently an issue because ICESat-2 and the MeritDEM are in the same CRS.
Related to #263
The MeritDEM implements its own getSamples function because of the custom HDF5 format the DEM is stored in. But this means that when the supplied coordinates are not in the same CRS as the the MeritDEM, there is no transform applied. Another way to say it is that the lat and lon supplied to the MeritDEM are assumed to be in the CRS of the MeritDEM and it is incumbent on the caller to perform the transform.
Since ICESat-2 is the primary source of coordinates for sampling the MeritDEM, this is not currently an issue because ICESat-2 and the MeritDEM are in the same CRS.