The NASA IceBridge ATM L2 Icessn Elevation, Slope, and Roughness data set, available at the NASA National Snow and Ice Data Center Distributed Active Archive Center (NSIDC DAAC), has been updated through 25 November 2017.
This data set contains resampled and smoothed elevation measurements of Arctic and Antarctic sea ice, and Greenland, Antarctic Peninsula, and West Antarctic region land ice surface acquired using the NASA Airborne Topographic Mapper (ATM) instrumentation.
Data Set DOI: https://doi.org/10.5067/CPRXXK3F39RV