dem.py currently downloads GeoTiffs and creates a vrt. The Copernicus DEM for NISAR is now also provided as a vrt, so the code could be simplified.
https://github.com/ASFHyP3/nisar-docs/blob/dem/data-products/supporting-data/nisar-dem.md#subsetting-via-global-vrt-mosaics
dem.pycurrently downloads GeoTiffs and creates a vrt. The Copernicus DEM for NISAR is now also provided as a vrt, so the code could be simplified.https://github.com/ASFHyP3/nisar-docs/blob/dem/data-products/supporting-data/nisar-dem.md#subsetting-via-global-vrt-mosaics