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dc.contributor.author A. en_US
dc.contributor.author Duncan J. en_US
dc.contributor.author D. en_US
dc.date.accessioned 2010-12-15T10:52:33Z
dc.date.available 2010-12-15T10:52:33Z
dc.date.issued 2009-09 en_US
dc.identifier http://dx.doi.org/10.3189/002214309789470987 en_US
dc.identifier.citation Luckman , A , Quincey , D J & Benn , D 2009 , ' Quantification of Everest-region glacier velocities between 1992 and 2002, using satellite radar interferometry and feature tracking ' Journal of Glaciology , pp. 596-606 . , 10.3189/002214309789470987 en_US
dc.identifier.other PURE: 155408 en_US
dc.identifier.other dspace: 2160/6006 en_US
dc.identifier.uri http://hdl.handle.net/2160/6006
dc.description.abstract Many glacier snouts in the Himalaya are known to be stagnant and exhibiting low surface gradients, conditions that are conducive to the formation of glacial lakes impounded either by the terminal moraine or by the remnant glacier snout. In this study, we use interferometry and feature-tracking techniques to quantify the extent of stagnation in 20 glaciers across the Everest (Qomolangma; Sagarmatha) region, and subsequently we examine the relationship between local catchment topography and ice dynamics. The results show that only one of the studied glaciers, Kangshung Glacier, is dynamic across its entire surface, with flow rates greater than 40 m a-1 being recorded in high-elevation areas. Twelve other glaciers show some evidence of flow, but are generally characterized by long, stagnant tongues, indicating widespread recession and in situ decay. The remaining seven glaciers show no evidence of flow in any of the available datasets. Hypsometric data suggest that catchment topography plays an important role in controlling glacier flow regimes, with those fed by wide, high-altitude accumulation areas showing the most extensive active ice, and those originating at low elevations exhibiting large areas of stagnant ice. Surface profiles extracted from a SRTM digital elevation model indicate that stagnant snouts are characterized by very low ( en_US
dc.format.extent 11 en_US
dc.relation.ispartof Journal of Glaciology en_US
dc.title Quantification of Everest-region glacier velocities between 1992 and 2002, using satellite radar interferometry and feature tracking en_US
dc.contributor.pbl Institute of Geography & Earth Sciences en_US
dc.contributor.pbl Centre for Glaciology en_US


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