Earth Imaging Journal: Remote Sensing, Satellite Images, Satellite Imagery
Breaking News
Maptitude Team Provides Sponsorship for MGGG Geometry of Redistricting Workshops
NEWTON, MASSACHUSETTS (USA) - The Metric Geometry and Gerrymandering...
2017 South Australian Spatial Excellence Awards Winners Announced
The 2017 Asia Pacific Spatial Excellence Awards South Australia...
Cartegraph and CycloMedia Partner to Deliver Timely, Objective Asset Data to the Public Sector
Cartegraph, a leader in high-performance government software and services,...
Formal Partnership of HeiGIT/GIScience Heidelberg with Humanitarian OpenStreetMap Team (HOT) Announced
Today HeiGIT/GIScience Research Group Heidelberg and the Humanitarian OpenStreetMap...
ArcGIS Experts, GEO Jobe, Celebrates 18 Years in GIS Software Development, Services, UAV Mapping
Established in 1999, GEO Jobe is pleased to be...

Shown within the white box is the location of the crater in Victoria Land, East Antarctica, at about 73ºS and 156ºE. The color scale shows height derived from CryoSat data.

The European Space Agency’s CryoSat satellite has found a vast crater in Antarctica’s icy surface that may have been left behind when a lake lying under about 3 kilometers of ice suddenly drained.

Far below the thick ice sheet that covers Antarctica, there are lakes of fresh water without a direct connection to the ocean. These lakes are of great interest to scientists who are trying to understand water transport and ice dynamics beneath the frozen Antarctic surface—but this information isn’t easy to obtain.

One method is to drill holes through kilometers of ice to the water—a difficult endeavor in the harsh conditions of the polar regions. But instead of looking down toward the ice, a team of European scientists is looking to the sky to improve our understanding of subglacial water and its transport.

By combining new measurements acquired by CryoSat with older data from NASA’s ICESat satellite, the team has mapped the large crater left behind by a lake and even determined the scale of the flood that formed it.

Image courtesy of ESA/M. McMillan.

Read the full story.

Comments are closed.