Recent high-resolution surface velocity and elevation change at a high-altitude, debris-covered glacier: Chacraraju, Peru

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dc.contributor.author Clemmens, Samuel
dc.contributor.author Hubbard, Bryn
dc.date.accessioned 2011-01-06T14:47:38Z
dc.date.available 2011-01-06T14:47:38Z
dc.date.issued 2011-01-06
dc.identifier.citation Clemmens , S & Hubbard , B 2011 , ' Recent high-resolution surface velocity and elevation change at a high-altitude, debris-covered glacier: Chacraraju, Peru ' Journal of Glaciology , pp. 479-486 . en
dc.identifier.other PURE: 165542
dc.identifier.other dspace: 2160/6065
dc.identifier.uri http://hdl.handle.net/2160/6065
dc.description Hubbard, B., Clemmens, S. (2008). Recent high-resolution surface velocity and elevation change at a high-altitude, debris-covered glacier: Chacraraju, Peru. Journal of Glaciology, 54(186): 479-486. en
dc.description.abstract Surface-elevation change and ice velocities have been measured over the debris-covered tongue of Chacraraju, Peru. Elevation change was measured by reflectorless survey at a 1m horizontal resolution over three separate areas of the glacier between 2004 and 2005. Area-averaged change revealed general lowering, with two of the surveyed areas experiencing surface lowering of 0.58 and 0.77 m, and the third a rise of 0.07 m. Combining all three areas (43 216m2) resulted in a mean net lowering of 0.43ma¿1, which is at the higher end of the range of long-term studies in the region. Velocity was measured over 7 days by the repeated optical survey of 12 prisms attached to stakes inserted directly into the glacier¿s surface. Results indicate that velocity increases approximately with distance squared from the glacier¿s terminus, from en
dc.format.extent 8 en
dc.language.iso eng
dc.relation.ispartof Journal of Glaciology en
dc.title Recent high-resolution surface velocity and elevation change at a high-altitude, debris-covered glacier: Chacraraju, Peru en
dc.type Text en
dc.type.publicationtype Article (Journal) en
dc.contributor.institution Institute of Geography & Earth Sciences en
dc.description.status Peer reviewed en


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