• NSIDC's website will undergo planned maintenance on Wednesday, January 15, from 10 a.m. to 12 p.m. (U.S. Mountain Time). During this time, the NSIDC.org website and most NSIDC data access may be briefly unavailable.

Data Access Tool

Use the selectors below to search and filter by time range and/or geographic area

Selected Data Set Information

Note: To select a different data set, close this window (or tab) and navigate to the data set landing page you want.

Data Set ID:
BLATM2
Data Set Summary:
This data set contains resampled and smoothed elevation measurements of Arctic and Antarctic sea ice, as well as Greenland, Arctic, Patagonia, and Antarctic region land ice surface acquired using the NASA Airborne Topographic Mapper (ATM) instrumentation.