期刊
JOURNAL OF MAPS
卷 12, 期 5, 页码 892-903出版社
TAYLOR & FRANCIS LTD
DOI: 10.1080/17445647.2015.1097289
关键词
Antarctica; Dronning Maud Land; landscape evolution; subglacial geomorphology; subglacial mapping
资金
- Natural Environment Research Council (NERC) [NE/J018333/1]
- Natural Environment Research Council [NE/K003674/1, NE/J018333/1, NE/F014260/1] Funding Source: researchfish
- NERC [NE/F014260/1, NE/J018333/1, NE/K003674/1] Funding Source: UKRI
The surficial and subglacial geomorphology of similar to 220,000 km(2) of western Dronning Maud Land (WDML), Antarctica, is presented at a scale of 1: 750,000. The mapped area includes the Stancomb-Wills Glacier north of 75 degrees 25'S and follows the grounded ice margin to the Jutulstraumen Ice Stream at the Prime Meridian. Mapping of subglacial geomorphology builds upon recent methodological advances that use optical and passive satellite imagery of the ice surface to infer major elements of the subglacial topography. The hypothesised geomorphological map reveals an alpine glacial landscape at, and surrounding, every nunatak region, inferred through the presence of subaerial and subglacial cirques, aretes and closely spaced hanging valleys. A series of subglacial troughs are found to intersect the main Jutulstraumen-Penck troughs. The map is aimed at helping analyse patterns and processes of landscape evolution within WDML and provides greater detail of erosion patterns associated with former ice flow patterns.
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