Satellite-derived volume loss rates and glacier speeds for the Juneau Icefield, Alaska ...
Abstract We provide a high-resolution map of elevation change rates at the Juneau Icefield (JIF), southeastern Alaska, in order to quantify its contribution to sea-level rise between 2000 and 2009/2013. We also produce the first high-resolution map of ice speeds at the JIF, which we use to constrain...
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ftdatacite:10.17615/ksd6-7663 2024-03-31T07:52:52+00:00 Satellite-derived volume loss rates and glacier speeds for the Juneau Icefield, Alaska ... Willis, Michael J. Melkonian, Andrew K. Pritchard, Matthew E. 2014 https://dx.doi.org/10.17615/ksd6-7663 https://cdr.lib.unc.edu/concern/articles/kk91fv77v en eng The University of North Carolina at Chapel Hill University Libraries In Copyright http://rightsstatements.org/vocab/InC/1.0/ Text article-journal Article ScholarlyArticle 2014 ftdatacite https://doi.org/10.17615/ksd6-7663 2024-03-04T11:41:33Z Abstract We provide a high-resolution map of elevation change rates at the Juneau Icefield (JIF), southeastern Alaska, in order to quantify its contribution to sea-level rise between 2000 and 2009/2013. We also produce the first high-resolution map of ice speeds at the JIF, which we use to constrain flux and look for acceleration. We calculate using stacked digital elevation models (DEMs) from the Advanced Spaceborne Thermal Emission and Reflection Radiometer (ASTER) instrument and the Shuttle Radar Topography Mission (SRTM), taking into account SRTM C-band penetration via comparison with SRTM X-band elevations. Overall, the JIF is losing mass less rapidly (0.13 ± 0.12 m w.e. a –1 ) than other Alaskan icefields (0.79 m w.e. a –1 ). We determine glacier speeds using pixel-tracking on optical image pairs acquired from 2001 to 2010 by ASTER, from radar image pairs acquired between 2007 and 2011 and from radar interferometry in 1995. We detect seasonal speed variations but no interannual acceleration, ruling out ... Text glacier Alaska DataCite Metadata Store (German National Library of Science and Technology) Juneau Icefield ENVELOPE(-134.254,-134.254,58.916,58.916) |
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Open Polar |
collection |
DataCite Metadata Store (German National Library of Science and Technology) |
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ftdatacite |
language |
English |
description |
Abstract We provide a high-resolution map of elevation change rates at the Juneau Icefield (JIF), southeastern Alaska, in order to quantify its contribution to sea-level rise between 2000 and 2009/2013. We also produce the first high-resolution map of ice speeds at the JIF, which we use to constrain flux and look for acceleration. We calculate using stacked digital elevation models (DEMs) from the Advanced Spaceborne Thermal Emission and Reflection Radiometer (ASTER) instrument and the Shuttle Radar Topography Mission (SRTM), taking into account SRTM C-band penetration via comparison with SRTM X-band elevations. Overall, the JIF is losing mass less rapidly (0.13 ± 0.12 m w.e. a –1 ) than other Alaskan icefields (0.79 m w.e. a –1 ). We determine glacier speeds using pixel-tracking on optical image pairs acquired from 2001 to 2010 by ASTER, from radar image pairs acquired between 2007 and 2011 and from radar interferometry in 1995. We detect seasonal speed variations but no interannual acceleration, ruling out ... |
format |
Text |
author |
Willis, Michael J. Melkonian, Andrew K. Pritchard, Matthew E. |
spellingShingle |
Willis, Michael J. Melkonian, Andrew K. Pritchard, Matthew E. Satellite-derived volume loss rates and glacier speeds for the Juneau Icefield, Alaska ... |
author_facet |
Willis, Michael J. Melkonian, Andrew K. Pritchard, Matthew E. |
author_sort |
Willis, Michael J. |
title |
Satellite-derived volume loss rates and glacier speeds for the Juneau Icefield, Alaska ... |
title_short |
Satellite-derived volume loss rates and glacier speeds for the Juneau Icefield, Alaska ... |
title_full |
Satellite-derived volume loss rates and glacier speeds for the Juneau Icefield, Alaska ... |
title_fullStr |
Satellite-derived volume loss rates and glacier speeds for the Juneau Icefield, Alaska ... |
title_full_unstemmed |
Satellite-derived volume loss rates and glacier speeds for the Juneau Icefield, Alaska ... |
title_sort |
satellite-derived volume loss rates and glacier speeds for the juneau icefield, alaska ... |
publisher |
The University of North Carolina at Chapel Hill University Libraries |
publishDate |
2014 |
url |
https://dx.doi.org/10.17615/ksd6-7663 https://cdr.lib.unc.edu/concern/articles/kk91fv77v |
long_lat |
ENVELOPE(-134.254,-134.254,58.916,58.916) |
geographic |
Juneau Icefield |
geographic_facet |
Juneau Icefield |
genre |
glacier Alaska |
genre_facet |
glacier Alaska |
op_rights |
In Copyright http://rightsstatements.org/vocab/InC/1.0/ |
op_doi |
https://doi.org/10.17615/ksd6-7663 |
_version_ |
1795032248361156608 |