期刊
ANNALS OF GLACIOLOGY
卷 50, 期 51, 页码 35-41出版社
INT GLACIOL SOC
DOI: 10.3189/172756409789097496
关键词
-
资金
- US National Science Foundation [OPP-0440304, OPP-0440533]
The 2006/07 and 2007/08 US-ITASE traverses from Taylor Dome to South Pole in East Antarctica provided opportunities to survey the subglacial and englacial environments using 3 MHz and 200 MHz radar. We present first results of these new ground-based radar data. A prominent basal deformation layer indicates different ice-flow regimes for the northern and southern halves of the Byrd Glacier drainage. Buried dune stratigraphy that appears to be related to the megadunes towards the west occurs at depths of up to 1500 m. At least two new water-filled subglacial lakes were discovered, while two recently drained lakes identified from repeat ICESat surface elevation surveys appear to be devoid of water.
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