###	Bathymetry of the Antarctic continental shelf and ice shelf cavities from a 3D inversion of circumpolar gravity anomalies constrained by other data

###	Data downloaded from https://doi.org/10.5061/dryad.rbnzs7hkc on 2025-05-13
	Rignot, Eric; Millan, Romain; Charrassin, Raphaelle; Scheinert, Mirko (2024). Bathymetry of the Antarctic continental shelf and ice shelf cavities from a 3D inversion of circumpolar gravity anomalies constrained by other data [Dataset]. Dryad. doi:10.5061/dryad.rbnzs7hkc

###	Processing steps:

	1. Reproject to EPSG:3031
	gdalwarp -t_srs EPSG:3031 -r bilinear input.tif output.tif

	2. Convert to Cloud-Optimised-Geotiff
	gdal_translate input.tif output.tif -of COG -r bilinear -co COMPRESS=DEFLATE -co BIGTIFF=IF_SAFTER

	3. Create derivatives (hillshade, aspect, slope)
	gdaldem hillshade -of COG input.tif output.tif -compute_edges -z 1 -az 315 -alt 45 -co COMPRESS=DEFLATE -co BIGTIFF=IF_SAFTER	
	gdaldem aspect -of COG input.tif output.tif -co COMPRESS=DEFLATE -co BIGTIFF=IF_SAFTER	
	gdaldem slope -of COG input.tif output.tif -co COMPRESS=DEFLATE -co BIGTIFF=IF_SAFTER