Continued deceleration of Whillans Ice Stream, West Antarctica

Details Continued deceleration of Whillans Ice Stream, West Antarctica Continued deceleration of Whillans Ice Stream, West Antarctica

Nov 2005

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005georl..3222501j&link_type=abstract

Geophysical Research Letters, Volume 32, Issue 22, CiteID L22501

Physics

10

Cryosphere: Ice Sheets, Cryosphere: Ice Streams, Cryosphere: Glaciology (1621, 1827, 1863), Geographic Location: Antarctica (4207)

Scientific paper

Earlier observations indicated that Whillans Ice Stream slowed from 1973 to 1997. We collected new GPS observations of the ice stream's speed in 2003 and 2004. These data show that the ice stream is continuing to decelerate at rates of about 0.6%/yr2, with faster rates near the grounding line. Our data also indicate that the deceleration extends over the full width of the ice plain. Extrapolation of the deceleration trend suggests the ice stream could stagnate sometime between the middle of the 21st and 22nd Centuries.

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