Posted on: Monday, May 14, 2012 1:50 AM
|This is a reprint of a news release posted by the National Science Foundation on May 4, 2012.
Researchers determine that although glaciers continue to increase in velocity, the rate at which they can dump ice into the ocean is limited.
The north branch of Jakobshavn Isbrae is in the upper left corner of the image, with several newly calved icebergs in front of it. The larger, faster moving, south branch is located near the upper right corner. Prior to about 2003, both branches merged to create a large floating ice tongue that extended beyond the iceberg covered area visible in this image. Since the 1990, the glacier calving front (terminus) has retreated about 18 km (11 miles). Now, it is only in the winter that both branches sometimes merge to form a much smaller seasonal ice tongue, which breaks up in the spring.
Credit: Polar Science Center, Applied Physics Laboratory, University of Washington