Evolution of Melt Pond Volume on the Surface of the Greenland Ice Sheet
The presence of surface meltwater on ice caps and ice sheets is an important glaciological and climatological characteristic. We describe an algorithm for estimating the depth and hence volume of surface melt ponds using multispectral ASTER satellite imagery. The method relies on reasonable assumpti...
Main Authors: | , |
---|---|
Format: | Text |
Language: | unknown |
Published: |
DigitalCommons@UMaine
2007
|
Subjects: | |
Online Access: | https://digitalcommons.library.umaine.edu/ers_facpub/33 https://digitalcommons.library.umaine.edu/cgi/viewcontent.cgi?article=1032&context=ers_facpub |
id |
ftmaineuniv:oai:digitalcommons.library.umaine.edu:ers_facpub-1032 |
---|---|
record_format |
openpolar |
spelling |
ftmaineuniv:oai:digitalcommons.library.umaine.edu:ers_facpub-1032 2023-05-15T16:26:57+02:00 Evolution of Melt Pond Volume on the Surface of the Greenland Ice Sheet Sneed, W. A. Hamilton, Gordon S. 2007-02-14T08:00:00Z application/pdf https://digitalcommons.library.umaine.edu/ers_facpub/33 https://digitalcommons.library.umaine.edu/cgi/viewcontent.cgi?article=1032&context=ers_facpub unknown DigitalCommons@UMaine https://digitalcommons.library.umaine.edu/ers_facpub/33 https://digitalcommons.library.umaine.edu/cgi/viewcontent.cgi?article=1032&context=ers_facpub This Item is protected by copyright and/or related rights. You are free to use this Item in any way that is permitted by the copyright and related rights legislation that applies to your use. In addition, no permission is required from the rights-holder(s) for educational uses. For other uses, you need to obtain permission from the rights-holder(s). Earth Science Faculty Scholarship Earth Sciences text 2007 ftmaineuniv 2023-03-12T18:49:12Z The presence of surface meltwater on ice caps and ice sheets is an important glaciological and climatological characteristic. We describe an algorithm for estimating the depth and hence volume of surface melt ponds using multispectral ASTER satellite imagery. The method relies on reasonable assumptions about the albedo of the bottom surface of the ponds and the optical attenuation characteristics of the ponded meltwater. We apply the technique to sequences of satellite imagery acquired over the western margin of the Greenland Ice Sheet to derive changes in melt pond extent and volume during the period 2001 - 2004. Results show large intra- and interannual changes in ponded water volumes, and large volumes of liquid water stored in extensive slush zones. Text Greenland Ice Sheet The University of Maine: DigitalCommons@UMaine Greenland |
institution |
Open Polar |
collection |
The University of Maine: DigitalCommons@UMaine |
op_collection_id |
ftmaineuniv |
language |
unknown |
topic |
Earth Sciences |
spellingShingle |
Earth Sciences Sneed, W. A. Hamilton, Gordon S. Evolution of Melt Pond Volume on the Surface of the Greenland Ice Sheet |
topic_facet |
Earth Sciences |
description |
The presence of surface meltwater on ice caps and ice sheets is an important glaciological and climatological characteristic. We describe an algorithm for estimating the depth and hence volume of surface melt ponds using multispectral ASTER satellite imagery. The method relies on reasonable assumptions about the albedo of the bottom surface of the ponds and the optical attenuation characteristics of the ponded meltwater. We apply the technique to sequences of satellite imagery acquired over the western margin of the Greenland Ice Sheet to derive changes in melt pond extent and volume during the period 2001 - 2004. Results show large intra- and interannual changes in ponded water volumes, and large volumes of liquid water stored in extensive slush zones. |
format |
Text |
author |
Sneed, W. A. Hamilton, Gordon S. |
author_facet |
Sneed, W. A. Hamilton, Gordon S. |
author_sort |
Sneed, W. A. |
title |
Evolution of Melt Pond Volume on the Surface of the Greenland Ice Sheet |
title_short |
Evolution of Melt Pond Volume on the Surface of the Greenland Ice Sheet |
title_full |
Evolution of Melt Pond Volume on the Surface of the Greenland Ice Sheet |
title_fullStr |
Evolution of Melt Pond Volume on the Surface of the Greenland Ice Sheet |
title_full_unstemmed |
Evolution of Melt Pond Volume on the Surface of the Greenland Ice Sheet |
title_sort |
evolution of melt pond volume on the surface of the greenland ice sheet |
publisher |
DigitalCommons@UMaine |
publishDate |
2007 |
url |
https://digitalcommons.library.umaine.edu/ers_facpub/33 https://digitalcommons.library.umaine.edu/cgi/viewcontent.cgi?article=1032&context=ers_facpub |
geographic |
Greenland |
geographic_facet |
Greenland |
genre |
Greenland Ice Sheet |
genre_facet |
Greenland Ice Sheet |
op_source |
Earth Science Faculty Scholarship |
op_relation |
https://digitalcommons.library.umaine.edu/ers_facpub/33 https://digitalcommons.library.umaine.edu/cgi/viewcontent.cgi?article=1032&context=ers_facpub |
op_rights |
This Item is protected by copyright and/or related rights. You are free to use this Item in any way that is permitted by the copyright and related rights legislation that applies to your use. In addition, no permission is required from the rights-holder(s) for educational uses. For other uses, you need to obtain permission from the rights-holder(s). |
_version_ |
1766015981577043968 |