Acceleration and spatial rheology of Larsen C Ice Shelf, Antarctic Peninsula
作者： A. Khazendar , E. Rignot , E. Larour
DOI: 10.1029/2011GL046775
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摘要: The disintegration of several Antarctic Peninsula ice shelves has focused attention on the state Larsen C Ice Shelf. Here, we use satellite observations to map shelf speed from years 2000, 2006 and 2008 apply inverse modeling examine spatial pattern ice-shelf stiffness. Results show that northern half been accelerating since speeding up by 15% between 2000 alone. distribution stiffness exhibits large variations link tributary glacier flow fractures. Our results reveal down-flow promontories is consistently softer, with exception Churchill where infer a stabilizing role for marine ice. We conclude although not facing imminent collapse, it undergoing significant change in form acceleration spatially related thinning fracture. Copyright © 2011 American Geophysical Union.
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