On Feb 3, 1:53 pm, "hank roberts" <[EMAIL PROTECTED]> wrote:
> William, can you talk about the lakes and rivers below the ice cap?
Hank, you might be interested in accessing the following link to
Science:
http://sciencenow.sciencemag.org/cgi/content/short/2007/206/1
The following is an excerpt:
Scientists have had major difficulties figuring out what causes
glaciers to break away from land because they don't have access to the
bottom where the action is, says Rob Larter, a marine geophysicist
with the British Antarctic Survey at the University of Cambridge in
the U.K. "All proposed mechanisms for fast glacier flow require an
ample supply of water at the ice bed," he wrote from the ship
yesterday. Sonar imaging has revealed what look like meltwater
channels beneath the Antarctic ice sheet. And last year, researchers
spotted signs of water moving beneath the Antarctic ice sheet in
satellite data (ScienceNOW, 19 April 2006).
John McCormick
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