Long melt seasons on ice shelves of the Antarctic Peninsula: an analysis using satellite-based microwave emission measurements ...
We have examined the record of melt-season duration on the Antarctic Peninsula using two techniques for detecting the presence of a melt signal in microwave-emission time series covering the period 1978–2000. We have obtained similar estimates of melt-season length using the cross-polarized gradient...
Main Authors: | , , |
---|---|
Format: | Article in Journal/Newspaper |
Language: | unknown |
Published: |
Cambridge University Press
2017
|
Subjects: | |
Online Access: | https://dx.doi.org/10.13016/m2rn4f-xsek https://mdsoar.org/handle/11603/24299 |
id |
ftdatacite:10.13016/m2rn4f-xsek |
---|---|
record_format |
openpolar |
spelling |
ftdatacite:10.13016/m2rn4f-xsek 2023-08-27T04:05:16+02:00 Long melt seasons on ice shelves of the Antarctic Peninsula: an analysis using satellite-based microwave emission measurements ... Fahnestock, Mark A. Abdalati, Waleed Shuman, Christopher 2017 https://dx.doi.org/10.13016/m2rn4f-xsek https://mdsoar.org/handle/11603/24299 unknown Cambridge University Press Public Domain Mark 1.0 This work was written as part of one of the author's official duties as an Employee of the United States Government and is therefore a work of the United States Government. In accordance with 17 U.S.C. 105, no copyright protection is available for such works under U.S. Law. http://creativecommons.org/publicdomain/mark/1.0/ Text Collection article 2017 ftdatacite https://doi.org/10.13016/m2rn4f-xsek 2023-08-07T14:24:23Z We have examined the record of melt-season duration on the Antarctic Peninsula using two techniques for detecting the presence of a melt signal in microwave-emission time series covering the period 1978–2000. We have obtained similar estimates of melt-season length using the cross-polarized gradient ratio (XPGR) technique and calibrations previously applied in Greenland and a technique which detects the jump in emission caused by melt without using a sensor- and frequency-dependent threshold value. The close correspondence between results from the two techniques on peninsula ice shelves suggests that the XPGR analysis can be used over the length of the time series. The results show that the long melt seasons of 1992/93 and several later years were exceptional occurrences on the northern parts of the Larsen Ice Shelf. These melt seasons were followed by disintegration events, supporting a possible cause-and-effect relationship. ... Article in Journal/Newspaper Antarc* Antarctic Antarctic Peninsula Greenland Ice Shelf Ice Shelves Larsen Ice Shelf DataCite Metadata Store (German National Library of Science and Technology) Antarctic The Antarctic Antarctic Peninsula Greenland Larsen Ice Shelf ENVELOPE(-62.500,-62.500,-67.500,-67.500) |
institution |
Open Polar |
collection |
DataCite Metadata Store (German National Library of Science and Technology) |
op_collection_id |
ftdatacite |
language |
unknown |
description |
We have examined the record of melt-season duration on the Antarctic Peninsula using two techniques for detecting the presence of a melt signal in microwave-emission time series covering the period 1978–2000. We have obtained similar estimates of melt-season length using the cross-polarized gradient ratio (XPGR) technique and calibrations previously applied in Greenland and a technique which detects the jump in emission caused by melt without using a sensor- and frequency-dependent threshold value. The close correspondence between results from the two techniques on peninsula ice shelves suggests that the XPGR analysis can be used over the length of the time series. The results show that the long melt seasons of 1992/93 and several later years were exceptional occurrences on the northern parts of the Larsen Ice Shelf. These melt seasons were followed by disintegration events, supporting a possible cause-and-effect relationship. ... |
format |
Article in Journal/Newspaper |
author |
Fahnestock, Mark A. Abdalati, Waleed Shuman, Christopher |
spellingShingle |
Fahnestock, Mark A. Abdalati, Waleed Shuman, Christopher Long melt seasons on ice shelves of the Antarctic Peninsula: an analysis using satellite-based microwave emission measurements ... |
author_facet |
Fahnestock, Mark A. Abdalati, Waleed Shuman, Christopher |
author_sort |
Fahnestock, Mark A. |
title |
Long melt seasons on ice shelves of the Antarctic Peninsula: an analysis using satellite-based microwave emission measurements ... |
title_short |
Long melt seasons on ice shelves of the Antarctic Peninsula: an analysis using satellite-based microwave emission measurements ... |
title_full |
Long melt seasons on ice shelves of the Antarctic Peninsula: an analysis using satellite-based microwave emission measurements ... |
title_fullStr |
Long melt seasons on ice shelves of the Antarctic Peninsula: an analysis using satellite-based microwave emission measurements ... |
title_full_unstemmed |
Long melt seasons on ice shelves of the Antarctic Peninsula: an analysis using satellite-based microwave emission measurements ... |
title_sort |
long melt seasons on ice shelves of the antarctic peninsula: an analysis using satellite-based microwave emission measurements ... |
publisher |
Cambridge University Press |
publishDate |
2017 |
url |
https://dx.doi.org/10.13016/m2rn4f-xsek https://mdsoar.org/handle/11603/24299 |
long_lat |
ENVELOPE(-62.500,-62.500,-67.500,-67.500) |
geographic |
Antarctic The Antarctic Antarctic Peninsula Greenland Larsen Ice Shelf |
geographic_facet |
Antarctic The Antarctic Antarctic Peninsula Greenland Larsen Ice Shelf |
genre |
Antarc* Antarctic Antarctic Peninsula Greenland Ice Shelf Ice Shelves Larsen Ice Shelf |
genre_facet |
Antarc* Antarctic Antarctic Peninsula Greenland Ice Shelf Ice Shelves Larsen Ice Shelf |
op_rights |
Public Domain Mark 1.0 This work was written as part of one of the author's official duties as an Employee of the United States Government and is therefore a work of the United States Government. In accordance with 17 U.S.C. 105, no copyright protection is available for such works under U.S. Law. http://creativecommons.org/publicdomain/mark/1.0/ |
op_doi |
https://doi.org/10.13016/m2rn4f-xsek |
_version_ |
1775356949347434496 |