New Map of Antarctica Bedrock
A new dataset called Bedmap2 gives a clearer picture of Antarctica from the ice surface down to the bedrock below. Bedmap2 is a significant improvement on the previous collection of Antarctic data—known as Bedmap—that was produced more than 10 years ago. The product was a result of work led by the British Antarctic Survey, where researchers compiled decades worth of geophysical measurements, such as surface elevation measurements from NASA's Ice, Cloud and Land Elevation Satellite, known as ICESat, and ice thickness data collected by Operation IceBridge.
Visit this NASA site (https://www.nasa.gov/topics/earth/features/antarctic-map.html) to view a sliding bar image to see the ice cover vs. mapped bedrock, to download images and to view a video (also embedded below). to learn more about NASA's IceBridge program, visit: https://www.nasa.gov/topics/earth/features/antarctic-map.html.