Evidence for subglacial ponding across Taylor Glacier, Dry Valleys, Antarctica
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چکیده
منابع مشابه
Bacterial diversity associated with Blood Falls, a subglacial outflow from the Taylor Glacier, Antarctica.
Blood Falls is the surface manifestation of brine released from below the Taylor Glacier, McMurdo Dry Valleys, Antarctica. Geochemical analyses of Blood Falls show that this brine is of a marine origin. The discovery that 74% of clones and isolates from Blood Falls share high 16S rRNA gene sequence homology with phylotypes from marine systems supports this contention. The bacterial 16S rRNA gen...
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The cold polar glaciers of the McMurdo Dry Valleys (MCMDV), Antarctica, are characterized by low accumulation (10 cmw.e. a), high sublimation (7–9 cmw.e. a) and low melt rates (1–3 cmw.e. a) (Fountain and others, 1998). Meltwater production and flow is limited to the near surface of these cold polar glaciers, where the average ice temperature at 15m depth is –178C. Meltwater flow, as on other g...
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[1] We present measurements of ice thickness, gravimetry and surface elevation on Pine Island Glacier, West Antarctica, separated by a period of 49 years. At one station, on the main trunk of the glacier we measured a surface elevation lowering with no significant change in ice thickness. We interpret these as indicating subglacial erosion of 31.8 13.4 m at this location, at a mean rate over th...
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ژورنال
عنوان ژورنال: Annals of Glaciology
سال: 2004
ISSN: 0260-3055,1727-5644
DOI: 10.3189/172756404781813970