For those of us interested in the ocean floor/bathymetry for Antarctica, have a look at the recently released BedMachine Antarctica v1. The result of a massive collaborative effort, it is now available at the NSIDC. The citation for the resource is:
Morlighem et al. Deep glacial troughs and stabilizing ridges unveiled beneath the margins of the Antarctic ice sheet. Nature Geoscience (2019) doi:10.1038/s41561-019-0510-8 (https://www.nature.com/articles/s41561-019-0510-8)
APECSSA 