The Arctic and Antarctic Regional Masks for Sea Ice and Related Data Products, Version 1 data set is now available at the NASA National Snow and Ice Data Center Distributed Active Archive Center (NSIDC DAAC). This data product is a set of polar ocean region masks. The masks have been developed primarily to support sea ice products, but they are potentially useful for other applications. Files are available in netCDF-4, Shapefile, and CSV format and provided in the NSIDC Polar Stereographic North and South Grids and EASE2 North and South Grids at 3.125 km, 6.25 km, 12.5 km, and 25 km grid resolutions.
Data set DOI: https://doi.org/10.5067/CYW3O8ZUNIWC