MOA-derived Structural Feature Map of the Ross Ice Shelf
The surface of the Ross Ice Shelf (RIS) is textured by flow stripes, crevasses and other fea- tures related to ice flow and deformation. Here, moderate resolution optical satellite images are used to map and classify regions of the RIS characterized by different surface textures. Because the texture...
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U.S. Antarctic Program (USAP) Data Center
2021
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ftdatacite:10.15784/601432 2023-05-15T13:30:27+02:00 MOA-derived Structural Feature Map of the Ross Ice Shelf Hulbe, Christina Ledoux, Christine 2021 https://dx.doi.org/10.15784/601432 https://www.usap-dc.org/view/dataset/601432 en eng U.S. Antarctic Program (USAP) Data Center Creative Commons Attribution 4.0 International https://creativecommons.org/licenses/by/4.0/legalcode cc-by-4.0 CC-BY Cryosphere Antarctica dataset Dataset 2021 ftdatacite https://doi.org/10.15784/601432 2021-11-05T12:55:41Z The surface of the Ross Ice Shelf (RIS) is textured by flow stripes, crevasses and other fea- tures related to ice flow and deformation. Here, moderate resolution optical satellite images are used to map and classify regions of the RIS characterized by different surface textures. Because the textures arise from ice deformation, the map is used to identify structural provinces with common deformation history. We classify four province types: regions associated with large outlet glaciers, shear zones, exten- sion downstream of obstacles and suture zones between provinces with different upstream sources. Adjacent provinces with contrasting histories are in some locations deforming at different rates, suggest- ing that our province map is also an ice fabric map. Structural provinces have more complicated shapes in the part of the ice shelf fed by West Antarctic ice streams than in the part fed by outlet glaciers from the Transantarctic Mountains. The map may be used to infer past variations in stress conditions and flow events that cannot be inferred from flow traces alone. Dataset Antarc* Antarctic Antarctica Ice Shelf Ross Ice Shelf DataCite Metadata Store (German National Library of Science and Technology) Antarctic Ross Ice Shelf Transantarctic Mountains Sion ENVELOPE(13.758,13.758,66.844,66.844) Moa ENVELOPE(157.950,157.950,-80.767,-80.767) |
institution |
Open Polar |
collection |
DataCite Metadata Store (German National Library of Science and Technology) |
op_collection_id |
ftdatacite |
language |
English |
topic |
Cryosphere Antarctica |
spellingShingle |
Cryosphere Antarctica Hulbe, Christina Ledoux, Christine MOA-derived Structural Feature Map of the Ross Ice Shelf |
topic_facet |
Cryosphere Antarctica |
description |
The surface of the Ross Ice Shelf (RIS) is textured by flow stripes, crevasses and other fea- tures related to ice flow and deformation. Here, moderate resolution optical satellite images are used to map and classify regions of the RIS characterized by different surface textures. Because the textures arise from ice deformation, the map is used to identify structural provinces with common deformation history. We classify four province types: regions associated with large outlet glaciers, shear zones, exten- sion downstream of obstacles and suture zones between provinces with different upstream sources. Adjacent provinces with contrasting histories are in some locations deforming at different rates, suggest- ing that our province map is also an ice fabric map. Structural provinces have more complicated shapes in the part of the ice shelf fed by West Antarctic ice streams than in the part fed by outlet glaciers from the Transantarctic Mountains. The map may be used to infer past variations in stress conditions and flow events that cannot be inferred from flow traces alone. |
format |
Dataset |
author |
Hulbe, Christina Ledoux, Christine |
author_facet |
Hulbe, Christina Ledoux, Christine |
author_sort |
Hulbe, Christina |
title |
MOA-derived Structural Feature Map of the Ross Ice Shelf |
title_short |
MOA-derived Structural Feature Map of the Ross Ice Shelf |
title_full |
MOA-derived Structural Feature Map of the Ross Ice Shelf |
title_fullStr |
MOA-derived Structural Feature Map of the Ross Ice Shelf |
title_full_unstemmed |
MOA-derived Structural Feature Map of the Ross Ice Shelf |
title_sort |
moa-derived structural feature map of the ross ice shelf |
publisher |
U.S. Antarctic Program (USAP) Data Center |
publishDate |
2021 |
url |
https://dx.doi.org/10.15784/601432 https://www.usap-dc.org/view/dataset/601432 |
long_lat |
ENVELOPE(13.758,13.758,66.844,66.844) ENVELOPE(157.950,157.950,-80.767,-80.767) |
geographic |
Antarctic Ross Ice Shelf Transantarctic Mountains Sion Moa |
geographic_facet |
Antarctic Ross Ice Shelf Transantarctic Mountains Sion Moa |
genre |
Antarc* Antarctic Antarctica Ice Shelf Ross Ice Shelf |
genre_facet |
Antarc* Antarctic Antarctica Ice Shelf Ross Ice Shelf |
op_rights |
Creative Commons Attribution 4.0 International https://creativecommons.org/licenses/by/4.0/legalcode cc-by-4.0 |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.15784/601432 |
_version_ |
1766008950742843392 |