Topographically mediated ice stream subglacial drainage networks
نویسندگان
چکیده
منابع مشابه
Subglacial hydrology and ice stream margin locations
Fast flowing ice streams in West Antarctica are separated from the nearly stagnant ice in the adjacent ridge by zones of highly localized deformation known as shear margins. It is presently uncertain what mechanisms control the location of shear margins, and possibly allow them to migrate. In this paper we show how subglacial hydrological processes can select the shear margin location, leading ...
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The Institute Ice Stream (IIS) rests on a reverse-sloping bed, extending >150 km upstream into the ∼1.8 km deep Robin Subglacial Basin, placing it at the threshold of marine ice-sheet instability. Understanding IIS vulnerability has focused on the effect of grounding-line melting, which is forecast to increase significantly this century. Changes to ice-flow dynamics are also important to IIS st...
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ژورنال
عنوان ژورنال: Journal of Geophysical Research: Earth Surface
سال: 2016
ISSN: 2169-9003,2169-9011
DOI: 10.1002/2015jf003660