Grounding Event of Iceberg D28 and Its Interactions with Seabed Topography
Iceberg D28, a giant tabular iceberg that calved from Amery Ice Shelf in September 2019, grounded off Kemp Coast, East Antarctica, from August to September of 2020. The motion of the iceberg is characterized herein by time-series images captured by synthetic aperture radar (SAR) on Sentinel-1 and th...
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2021
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Online Access: | https://doi.org/10.3390/rs14010154 https://doaj.org/article/a47c5f6c6b3d4be0a0c3430b2562547b |
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ftdoajarticles:oai:doaj.org/article:a47c5f6c6b3d4be0a0c3430b2562547b 2023-05-15T13:22:08+02:00 Grounding Event of Iceberg D28 and Its Interactions with Seabed Topography Xuying Liu Xiao Cheng Qi Liang Teng Li Fukai Peng Zhaohui Chi Jiaying He 2021-12-01T00:00:00Z https://doi.org/10.3390/rs14010154 https://doaj.org/article/a47c5f6c6b3d4be0a0c3430b2562547b EN eng MDPI AG https://www.mdpi.com/2072-4292/14/1/154 https://doaj.org/toc/2072-4292 doi:10.3390/rs14010154 2072-4292 https://doaj.org/article/a47c5f6c6b3d4be0a0c3430b2562547b Remote Sensing, Vol 14, Iss 154, p 154 (2021) iceberg D28 iceberg draft iceberg grounding seabed topography iceberg dynamics satellite altimetry Science Q article 2021 ftdoajarticles https://doi.org/10.3390/rs14010154 2022-12-30T19:58:24Z Iceberg D28, a giant tabular iceberg that calved from Amery Ice Shelf in September 2019, grounded off Kemp Coast, East Antarctica, from August to September of 2020. The motion of the iceberg is characterized herein by time-series images captured by synthetic aperture radar (SAR) on Sentinel-1 and the moderate resolution imaging spectroradiometer (MODIS) boarded on Terra from 6 August to 15 September 2020. The thickness of iceberg D28 was estimated by utilizing data from altimeters on Cryosat-2, Sentinel-3, and ICESat-2. By using the iceberg draft and grounding point locations inferred from its motion, the maximum water depths at grounding points were determined, varying from 221.72 ± 21.77 m to 269.42 ± 25.66 m. The largest disagreements in seabed elevation inferred from the grounded iceberg and terrain models from the Bedmap2 and BedMachine datasets were over 570 m and 350 m, respectively, indicating a more complicated submarine topography in the study area than that presented by the existing seabed terrain models. Wind and sea water velocities from reanalysis products imply that the driving force from sea water is a more dominant factor than the wind in propelling iceberg D28 during its grounding, which is consistent with previous findings on iceberg dynamics. Article in Journal/Newspaper Amery Ice Shelf Antarc* Antarctica East Antarctica Ice Shelf Directory of Open Access Journals: DOAJ Articles Amery ENVELOPE(-94.063,-94.063,56.565,56.565) Amery Ice Shelf ENVELOPE(71.000,71.000,-69.750,-69.750) East Antarctica Kemp Coast ENVELOPE(58.000,58.000,-67.500,-67.500) Remote Sensing 14 1 154 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
iceberg D28 iceberg draft iceberg grounding seabed topography iceberg dynamics satellite altimetry Science Q |
spellingShingle |
iceberg D28 iceberg draft iceberg grounding seabed topography iceberg dynamics satellite altimetry Science Q Xuying Liu Xiao Cheng Qi Liang Teng Li Fukai Peng Zhaohui Chi Jiaying He Grounding Event of Iceberg D28 and Its Interactions with Seabed Topography |
topic_facet |
iceberg D28 iceberg draft iceberg grounding seabed topography iceberg dynamics satellite altimetry Science Q |
description |
Iceberg D28, a giant tabular iceberg that calved from Amery Ice Shelf in September 2019, grounded off Kemp Coast, East Antarctica, from August to September of 2020. The motion of the iceberg is characterized herein by time-series images captured by synthetic aperture radar (SAR) on Sentinel-1 and the moderate resolution imaging spectroradiometer (MODIS) boarded on Terra from 6 August to 15 September 2020. The thickness of iceberg D28 was estimated by utilizing data from altimeters on Cryosat-2, Sentinel-3, and ICESat-2. By using the iceberg draft and grounding point locations inferred from its motion, the maximum water depths at grounding points were determined, varying from 221.72 ± 21.77 m to 269.42 ± 25.66 m. The largest disagreements in seabed elevation inferred from the grounded iceberg and terrain models from the Bedmap2 and BedMachine datasets were over 570 m and 350 m, respectively, indicating a more complicated submarine topography in the study area than that presented by the existing seabed terrain models. Wind and sea water velocities from reanalysis products imply that the driving force from sea water is a more dominant factor than the wind in propelling iceberg D28 during its grounding, which is consistent with previous findings on iceberg dynamics. |
format |
Article in Journal/Newspaper |
author |
Xuying Liu Xiao Cheng Qi Liang Teng Li Fukai Peng Zhaohui Chi Jiaying He |
author_facet |
Xuying Liu Xiao Cheng Qi Liang Teng Li Fukai Peng Zhaohui Chi Jiaying He |
author_sort |
Xuying Liu |
title |
Grounding Event of Iceberg D28 and Its Interactions with Seabed Topography |
title_short |
Grounding Event of Iceberg D28 and Its Interactions with Seabed Topography |
title_full |
Grounding Event of Iceberg D28 and Its Interactions with Seabed Topography |
title_fullStr |
Grounding Event of Iceberg D28 and Its Interactions with Seabed Topography |
title_full_unstemmed |
Grounding Event of Iceberg D28 and Its Interactions with Seabed Topography |
title_sort |
grounding event of iceberg d28 and its interactions with seabed topography |
publisher |
MDPI AG |
publishDate |
2021 |
url |
https://doi.org/10.3390/rs14010154 https://doaj.org/article/a47c5f6c6b3d4be0a0c3430b2562547b |
long_lat |
ENVELOPE(-94.063,-94.063,56.565,56.565) ENVELOPE(71.000,71.000,-69.750,-69.750) ENVELOPE(58.000,58.000,-67.500,-67.500) |
geographic |
Amery Amery Ice Shelf East Antarctica Kemp Coast |
geographic_facet |
Amery Amery Ice Shelf East Antarctica Kemp Coast |
genre |
Amery Ice Shelf Antarc* Antarctica East Antarctica Ice Shelf |
genre_facet |
Amery Ice Shelf Antarc* Antarctica East Antarctica Ice Shelf |
op_source |
Remote Sensing, Vol 14, Iss 154, p 154 (2021) |
op_relation |
https://www.mdpi.com/2072-4292/14/1/154 https://doaj.org/toc/2072-4292 doi:10.3390/rs14010154 2072-4292 https://doaj.org/article/a47c5f6c6b3d4be0a0c3430b2562547b |
op_doi |
https://doi.org/10.3390/rs14010154 |
container_title |
Remote Sensing |
container_volume |
14 |
container_issue |
1 |
container_start_page |
154 |
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1766363406071234560 |