Calving Fronts of Antarctica: Mapping and Classification
Antarctica is surrounded by a variety of large, medium and small sized ice shelves, glacier tongues and coastal areas without offshore floating ice masses. We used the mosaic of the Radarsat-1 Antarctica Mapping Project (RAMP) Antarctic Mapping Mission 1 (AMM) to classify the coastline of Antarctica...
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Multidisciplinary Digital Publishing Institute (MDPI)
2013
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Online Access: | https://epic.awi.de/id/eprint/34462/ https://epic.awi.de/id/eprint/34462/1/wesche13.pdf http://www.mdpi.com/2072-4292/5/12/6305 https://hdl.handle.net/10013/epic.42696 https://hdl.handle.net/10013/epic.42696.d001 |
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ftawi:oai:epic.awi.de:34462 2023-05-15T13:40:26+02:00 Calving Fronts of Antarctica: Mapping and Classification Wesche, Christine Jansen, Daniela Dierking, Wolfgang 2013 application/pdf https://epic.awi.de/id/eprint/34462/ https://epic.awi.de/id/eprint/34462/1/wesche13.pdf http://www.mdpi.com/2072-4292/5/12/6305 https://hdl.handle.net/10013/epic.42696 https://hdl.handle.net/10013/epic.42696.d001 unknown Multidisciplinary Digital Publishing Institute (MDPI) https://epic.awi.de/id/eprint/34462/1/wesche13.pdf https://hdl.handle.net/10013/epic.42696.d001 Wesche, C. orcid:0000-0002-9786-4010 , Jansen, D. orcid:0000-0002-4412-5820 and Dierking, W. orcid:0000-0002-5031-648X (2013) Calving Fronts of Antarctica: Mapping and Classification , Remote Sensing, 5 (12), pp. 6305-6322 . doi:10.3390/rs5126305 <https://doi.org/10.3390/rs5126305> , hdl:10013/epic.42696 EPIC3Remote Sensing, Multidisciplinary Digital Publishing Institute (MDPI), 5(12), pp. 6305-6322, ISSN: 2072-4292 Article isiRev 2013 ftawi https://doi.org/10.3390/rs5126305 2021-12-24T15:39:10Z Antarctica is surrounded by a variety of large, medium and small sized ice shelves, glacier tongues and coastal areas without offshore floating ice masses. We used the mosaic of the Radarsat-1 Antarctica Mapping Project (RAMP) Antarctic Mapping Mission 1 (AMM) to classify the coastline of Antarctica in terms of surface structure patterns close to the calving front. With the aid of an automated edge detection method, complemented by manual control, the surface structures of all ice shelves and glacier tongues around Antarctica were mapped. We found dense and less dense patterns of surface structures unevenly distributed over the ice shelves and ice tongues. Dense surface patterns are frequent on fast flowing ice masses (ice streams), whereas most ice shelves show a dense surface pattern only close to the grounding line. Flow line analyses on ten ice shelves reveal that the time of residence of the ice along a flow path and—associated with it—the healing of surface crevasses can explain the different surface structure distribution close to the grounding line and the calving front on many ice shelves. Based on the surface structures relative to the calving front within a 15 km-wide seaward strip, the ice shelf fronts can be separated into three classes. The resulting map of the classified calving fronts around Antarctica and their description provide a detailed picture of crevasse formation and the observed dominant iceberg shapes. Article in Journal/Newspaper Antarc* Antarctic Antarctica Ice Shelf Ice Shelves Iceberg* Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center) Antarctic Remote Sensing 5 12 6305 6322 |
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Open Polar |
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Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center) |
op_collection_id |
ftawi |
language |
unknown |
description |
Antarctica is surrounded by a variety of large, medium and small sized ice shelves, glacier tongues and coastal areas without offshore floating ice masses. We used the mosaic of the Radarsat-1 Antarctica Mapping Project (RAMP) Antarctic Mapping Mission 1 (AMM) to classify the coastline of Antarctica in terms of surface structure patterns close to the calving front. With the aid of an automated edge detection method, complemented by manual control, the surface structures of all ice shelves and glacier tongues around Antarctica were mapped. We found dense and less dense patterns of surface structures unevenly distributed over the ice shelves and ice tongues. Dense surface patterns are frequent on fast flowing ice masses (ice streams), whereas most ice shelves show a dense surface pattern only close to the grounding line. Flow line analyses on ten ice shelves reveal that the time of residence of the ice along a flow path and—associated with it—the healing of surface crevasses can explain the different surface structure distribution close to the grounding line and the calving front on many ice shelves. Based on the surface structures relative to the calving front within a 15 km-wide seaward strip, the ice shelf fronts can be separated into three classes. The resulting map of the classified calving fronts around Antarctica and their description provide a detailed picture of crevasse formation and the observed dominant iceberg shapes. |
format |
Article in Journal/Newspaper |
author |
Wesche, Christine Jansen, Daniela Dierking, Wolfgang |
spellingShingle |
Wesche, Christine Jansen, Daniela Dierking, Wolfgang Calving Fronts of Antarctica: Mapping and Classification |
author_facet |
Wesche, Christine Jansen, Daniela Dierking, Wolfgang |
author_sort |
Wesche, Christine |
title |
Calving Fronts of Antarctica: Mapping and Classification |
title_short |
Calving Fronts of Antarctica: Mapping and Classification |
title_full |
Calving Fronts of Antarctica: Mapping and Classification |
title_fullStr |
Calving Fronts of Antarctica: Mapping and Classification |
title_full_unstemmed |
Calving Fronts of Antarctica: Mapping and Classification |
title_sort |
calving fronts of antarctica: mapping and classification |
publisher |
Multidisciplinary Digital Publishing Institute (MDPI) |
publishDate |
2013 |
url |
https://epic.awi.de/id/eprint/34462/ https://epic.awi.de/id/eprint/34462/1/wesche13.pdf http://www.mdpi.com/2072-4292/5/12/6305 https://hdl.handle.net/10013/epic.42696 https://hdl.handle.net/10013/epic.42696.d001 |
geographic |
Antarctic |
geographic_facet |
Antarctic |
genre |
Antarc* Antarctic Antarctica Ice Shelf Ice Shelves Iceberg* |
genre_facet |
Antarc* Antarctic Antarctica Ice Shelf Ice Shelves Iceberg* |
op_source |
EPIC3Remote Sensing, Multidisciplinary Digital Publishing Institute (MDPI), 5(12), pp. 6305-6322, ISSN: 2072-4292 |
op_relation |
https://epic.awi.de/id/eprint/34462/1/wesche13.pdf https://hdl.handle.net/10013/epic.42696.d001 Wesche, C. orcid:0000-0002-9786-4010 , Jansen, D. orcid:0000-0002-4412-5820 and Dierking, W. orcid:0000-0002-5031-648X (2013) Calving Fronts of Antarctica: Mapping and Classification , Remote Sensing, 5 (12), pp. 6305-6322 . doi:10.3390/rs5126305 <https://doi.org/10.3390/rs5126305> , hdl:10013/epic.42696 |
op_doi |
https://doi.org/10.3390/rs5126305 |
container_title |
Remote Sensing |
container_volume |
5 |
container_issue |
12 |
container_start_page |
6305 |
op_container_end_page |
6322 |
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1766133770395582464 |