Antarctica 2005-2006: Reactivation of Kamb Ice Stream
Once flowing at about 400 m/yr, Kamb Ice Stream stopped completely on its lower reaches about 140 years ago. To investigate the possibility that this ice stream could resume flowing, a team composed of Slawek Tulaczyk (U.C. Santa Cruz), Ian Joughin (UW), Rickard Petterssen (then at St. Olafs), Poul Christofferson (then at U. Aberystwyth), Marion Bougamont (then at U. Bristol), and Camas Tung (UCSC) traveled to Antarctica in December 2005.
They spent a month on the ice stream at two camps performing GPS surveys to measure ice motion and radar surveys to measure ice thickness and bed characteristics (e.g., wet or frozen). Comparison with previously collected velocity data, shows the ice steam is maintaining its slow pace. One GPS showed vertical motion associated with the filling of a sub-glacial lake.
 Mount Discovery, Antarctica |
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