Updating glacier inventories on the periphery of Antarctica and Greenland using multi-source data
Abstract Melting and calving of glaciers and ice caps in Antarctica and Greenland could potentially contribute significantly to global sea level rise. Updates to existing outlines that provide critical glacier baseline information in both regions could help in the analysis of particular changes in g...
Published in: | Annals of Glaciology |
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Cambridge University Press (CUP)
2024
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Online Access: | http://dx.doi.org/10.1017/aog.2023.75 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0260305523000757 |
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crcambridgeupr:10.1017/aog.2023.75 2024-06-09T07:38:26+00:00 Updating glacier inventories on the periphery of Antarctica and Greenland using multi-source data Liu, Xingchen An, Lu Hai, Gang Xie, Huan Li, Rongxing National Key Research and Development Program of China Fundamental Research Funds for the Central Universities 2024 http://dx.doi.org/10.1017/aog.2023.75 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0260305523000757 en eng Cambridge University Press (CUP) http://creativecommons.org/licenses/by/4.0/ Annals of Glaciology page 1-18 ISSN 0260-3055 1727-5644 journal-article 2024 crcambridgeupr https://doi.org/10.1017/aog.2023.75 2024-05-15T13:03:27Z Abstract Melting and calving of glaciers and ice caps in Antarctica and Greenland could potentially contribute significantly to global sea level rise. Updates to existing outlines that provide critical glacier baseline information in both regions could help in the analysis of particular changes in glacier parameters such as area and volume from time-series inventories. Here we synthesize previously established techniques and apply new multi-source datasets to update glacier outlines in selected test areas of Antarctica and Greenland, as well as to reduce uncertainties and errors during the mapping process. The workflow includes mapping glacier boundaries, subdividing glaciers by watersheds and assigning glacier attributes. Complicated glacier scenarios and updating challenges in polar regions are discussed and demonstrated by representative case studies. For the first time in Antarctica, we analyze the effect of terminus types on mapped glacier areas, and in Greenland we compare the differences with glacier mapping results using Landsat OLI and ETM+. With new data sources, the methods described in this study might help to create glacier outlines on a larger scale in Antarctica and Greenland. Although data sources can be substituted, the enormous amount of manual labor required to update glacier inventories remains a significant challenge. Article in Journal/Newspaper Annals of Glaciology Antarc* Antarctica glacier Greenland Cambridge University Press Greenland Annals of Glaciology 1 18 |
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Open Polar |
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Cambridge University Press |
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crcambridgeupr |
language |
English |
description |
Abstract Melting and calving of glaciers and ice caps in Antarctica and Greenland could potentially contribute significantly to global sea level rise. Updates to existing outlines that provide critical glacier baseline information in both regions could help in the analysis of particular changes in glacier parameters such as area and volume from time-series inventories. Here we synthesize previously established techniques and apply new multi-source datasets to update glacier outlines in selected test areas of Antarctica and Greenland, as well as to reduce uncertainties and errors during the mapping process. The workflow includes mapping glacier boundaries, subdividing glaciers by watersheds and assigning glacier attributes. Complicated glacier scenarios and updating challenges in polar regions are discussed and demonstrated by representative case studies. For the first time in Antarctica, we analyze the effect of terminus types on mapped glacier areas, and in Greenland we compare the differences with glacier mapping results using Landsat OLI and ETM+. With new data sources, the methods described in this study might help to create glacier outlines on a larger scale in Antarctica and Greenland. Although data sources can be substituted, the enormous amount of manual labor required to update glacier inventories remains a significant challenge. |
author2 |
National Key Research and Development Program of China Fundamental Research Funds for the Central Universities |
format |
Article in Journal/Newspaper |
author |
Liu, Xingchen An, Lu Hai, Gang Xie, Huan Li, Rongxing |
spellingShingle |
Liu, Xingchen An, Lu Hai, Gang Xie, Huan Li, Rongxing Updating glacier inventories on the periphery of Antarctica and Greenland using multi-source data |
author_facet |
Liu, Xingchen An, Lu Hai, Gang Xie, Huan Li, Rongxing |
author_sort |
Liu, Xingchen |
title |
Updating glacier inventories on the periphery of Antarctica and Greenland using multi-source data |
title_short |
Updating glacier inventories on the periphery of Antarctica and Greenland using multi-source data |
title_full |
Updating glacier inventories on the periphery of Antarctica and Greenland using multi-source data |
title_fullStr |
Updating glacier inventories on the periphery of Antarctica and Greenland using multi-source data |
title_full_unstemmed |
Updating glacier inventories on the periphery of Antarctica and Greenland using multi-source data |
title_sort |
updating glacier inventories on the periphery of antarctica and greenland using multi-source data |
publisher |
Cambridge University Press (CUP) |
publishDate |
2024 |
url |
http://dx.doi.org/10.1017/aog.2023.75 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0260305523000757 |
geographic |
Greenland |
geographic_facet |
Greenland |
genre |
Annals of Glaciology Antarc* Antarctica glacier Greenland |
genre_facet |
Annals of Glaciology Antarc* Antarctica glacier Greenland |
op_source |
Annals of Glaciology page 1-18 ISSN 0260-3055 1727-5644 |
op_rights |
http://creativecommons.org/licenses/by/4.0/ |
op_doi |
https://doi.org/10.1017/aog.2023.75 |
container_title |
Annals of Glaciology |
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1 |
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18 |
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1801372942969339904 |