Quantification of Everest-region glacier velocities between 1992 and 2002, using satellite radar interferometry and feature tracking

H...............H

Show simple item record

dc.contributor.author Luckman, A.
dc.contributor.author Quincey, Duncan J.
dc.contributor.author Benn, D.
dc.date.accessioned 2010-12-15T10:52:33Z
dc.date.available 2010-12-15T10:52:33Z
dc.date.issued 2009-09
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
dc.identifier.issn 1727-5652
dc.identifier.other PURE: 155408
dc.identifier.other dspace: 2160/6006
dc.identifier.uri http://hdl.handle.net/2160/6006
dc.description Quincey, D. J., Luckman, A., Benn, D. (2009). Quantification of Everest-region glacier velocities between 1992 and 2002, using satellite radar interferometry and feature tracking. Journal of Glaciology, 55(192): 596-606. Sponsorship: Knowledge Transfer Project No. 3742 en
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
dc.format.extent 11 en
dc.language.iso eng
dc.relation.ispartof Journal of Glaciology en
dc.title Quantification of Everest-region glacier velocities between 1992 and 2002, using satellite radar interferometry and feature tracking en
dc.type Text en
dc.type.publicationtype Article (Journal) en
dc.identifier.doi http://dx.doi.org/10.3189/002214309789470987
dc.contributor.institution Institute of Geography & Earth Sciences en
dc.contributor.institution Centre for Glaciology en
dc.description.status Peer reviewed en


Files in this item

Files Size Format View

There are no files associated with this item.

This item appears in the following Collection(s)

Show simple item record

Search Cadair


Advanced Search

Browse

My Account