Greenland: Bringing together remote sensing and fieldwork.
With global land and sea temperatures rising, the importance of accurate monitoring of the world's ice sheets is increasing. Satellite radar altimetry can be used to measure elevation changes of ice sheets from which mass balance can be derived. In the percolation zone of ice sheets, summer mel...
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Taylor and Francis
2008
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Online Access: | http://nora.nerc.ac.uk/id/eprint/5918/ https://nora.nerc.ac.uk/id/eprint/5918/1/Parryetal2008.pdf https://doi.org/10.1080/14702540802411840 |
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ftnerc:oai:nora.nerc.ac.uk:5918 2024-06-09T07:46:22+00:00 Greenland: Bringing together remote sensing and fieldwork. Parry, Victoria Nienow, Peter Mair, Douglas Scott, Julian 2008 text http://nora.nerc.ac.uk/id/eprint/5918/ https://nora.nerc.ac.uk/id/eprint/5918/1/Parryetal2008.pdf https://doi.org/10.1080/14702540802411840 en eng Taylor and Francis https://nora.nerc.ac.uk/id/eprint/5918/1/Parryetal2008.pdf Parry, Victoria; Nienow, Peter; Mair, Douglas; Scott, Julian. 2008 Greenland: Bringing together remote sensing and fieldwork. Scottish Geographical Journal, 124 (2). 211-217. https://doi.org/10.1080/14702540802411840 <https://doi.org/10.1080/14702540802411840> Glaciology Publication - Article PeerReviewed 2008 ftnerc https://doi.org/10.1080/14702540802411840 2024-05-15T08:52:26Z With global land and sea temperatures rising, the importance of accurate monitoring of the world's ice sheets is increasing. Satellite radar altimetry can be used to measure elevation changes of ice sheets from which mass balance can be derived. In the percolation zone of ice sheets, summer melt which percolates into the snowpack and refreezes causes a re-distribution of mass through densification, which can result in elevation changes which are not representative of changes in mass balance. We present data collected in the percolation zone of the Greenland Ice Sheet prior to and post the processes of summer melt, percolation and refreezing. Data from nine sites along two 1-km transects show that in 2004 there was a 31.6% increase in accumulation over the summer, but due to surface melting percolation and refreezing the average snowpack density increased by 26.2%, resulting in only a 5.3% increase in elevation. Our results indicate that in areas of substantial seasonal melt and refreezing, densification rates must be accurately quantified if mass balance estimates are to be usefully derived from surface elevation change. Article in Journal/Newspaper Greenland Ice Sheet Natural Environment Research Council: NERC Open Research Archive Greenland Scottish Geographical Journal 124 2-3 211 217 |
institution |
Open Polar |
collection |
Natural Environment Research Council: NERC Open Research Archive |
op_collection_id |
ftnerc |
language |
English |
topic |
Glaciology |
spellingShingle |
Glaciology Parry, Victoria Nienow, Peter Mair, Douglas Scott, Julian Greenland: Bringing together remote sensing and fieldwork. |
topic_facet |
Glaciology |
description |
With global land and sea temperatures rising, the importance of accurate monitoring of the world's ice sheets is increasing. Satellite radar altimetry can be used to measure elevation changes of ice sheets from which mass balance can be derived. In the percolation zone of ice sheets, summer melt which percolates into the snowpack and refreezes causes a re-distribution of mass through densification, which can result in elevation changes which are not representative of changes in mass balance. We present data collected in the percolation zone of the Greenland Ice Sheet prior to and post the processes of summer melt, percolation and refreezing. Data from nine sites along two 1-km transects show that in 2004 there was a 31.6% increase in accumulation over the summer, but due to surface melting percolation and refreezing the average snowpack density increased by 26.2%, resulting in only a 5.3% increase in elevation. Our results indicate that in areas of substantial seasonal melt and refreezing, densification rates must be accurately quantified if mass balance estimates are to be usefully derived from surface elevation change. |
format |
Article in Journal/Newspaper |
author |
Parry, Victoria Nienow, Peter Mair, Douglas Scott, Julian |
author_facet |
Parry, Victoria Nienow, Peter Mair, Douglas Scott, Julian |
author_sort |
Parry, Victoria |
title |
Greenland: Bringing together remote sensing and fieldwork. |
title_short |
Greenland: Bringing together remote sensing and fieldwork. |
title_full |
Greenland: Bringing together remote sensing and fieldwork. |
title_fullStr |
Greenland: Bringing together remote sensing and fieldwork. |
title_full_unstemmed |
Greenland: Bringing together remote sensing and fieldwork. |
title_sort |
greenland: bringing together remote sensing and fieldwork. |
publisher |
Taylor and Francis |
publishDate |
2008 |
url |
http://nora.nerc.ac.uk/id/eprint/5918/ https://nora.nerc.ac.uk/id/eprint/5918/1/Parryetal2008.pdf https://doi.org/10.1080/14702540802411840 |
geographic |
Greenland |
geographic_facet |
Greenland |
genre |
Greenland Ice Sheet |
genre_facet |
Greenland Ice Sheet |
op_relation |
https://nora.nerc.ac.uk/id/eprint/5918/1/Parryetal2008.pdf Parry, Victoria; Nienow, Peter; Mair, Douglas; Scott, Julian. 2008 Greenland: Bringing together remote sensing and fieldwork. Scottish Geographical Journal, 124 (2). 211-217. https://doi.org/10.1080/14702540802411840 <https://doi.org/10.1080/14702540802411840> |
op_doi |
https://doi.org/10.1080/14702540802411840 |
container_title |
Scottish Geographical Journal |
container_volume |
124 |
container_issue |
2-3 |
container_start_page |
211 |
op_container_end_page |
217 |
_version_ |
1801376189754900480 |