ACCURACY ASSESSMENT OF RECENT GLOBAL OCEAN TIDE MODELS AROUND ANTARCTICA
Due to the coverage limitation of T/P-series altimeters, the lack of bathymetric data under large ice shelves, and the inaccurate definitions of coastlines and grounding lines, the accuracy of ocean tide models around Antarctica is poorer than those in deep oceans. Using tidal measurements from tide...
Published in: | The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences |
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ftcopernicus:oai:publications.copernicus.org:isprs-archives61964 2023-05-15T13:22:07+02:00 ACCURACY ASSESSMENT OF RECENT GLOBAL OCEAN TIDE MODELS AROUND ANTARCTICA Lei, J. Li, F. Zhang, S. Ke, H. Zhang, Q. Li, W. 2018-01-15 application/pdf https://doi.org/10.5194/isprs-archives-XLII-2-W7-1521-2017 https://www.int-arch-photogramm-remote-sens-spatial-inf-sci.net/XLII-2-W7/1521/2017/ eng eng doi:10.5194/isprs-archives-XLII-2-W7-1521-2017 https://www.int-arch-photogramm-remote-sens-spatial-inf-sci.net/XLII-2-W7/1521/2017/ eISSN: 2194-9034 Text 2018 ftcopernicus https://doi.org/10.5194/isprs-archives-XLII-2-W7-1521-2017 2019-12-24T09:51:03Z Due to the coverage limitation of T/P-series altimeters, the lack of bathymetric data under large ice shelves, and the inaccurate definitions of coastlines and grounding lines, the accuracy of ocean tide models around Antarctica is poorer than those in deep oceans. Using tidal measurements from tide gauges, gravimetric data and GPS records, the accuracy of seven state-of-the-art global ocean tide models (DTU10, EOT11a, GOT4.8, FES2012, FES2014, HAMTIDE12, TPXO8) is assessed, as well as the most widely-used conventional model FES2004. Four regions (Antarctic Peninsula region, Amery ice shelf region, Filchner-Ronne ice shelf region and Ross ice shelf region) are separately reported. The standard deviations of eight main constituents between the selected models are large in polar regions, especially under the big ice shelves, suggesting that the uncertainty in these regions remain large. Comparisons with in situ tidal measurements show that the most accurate model is TPXO8, and all models show worst performance in Weddell sea and Filchner-Ronne ice shelf regions. The accuracy of tidal predictions around Antarctica is gradually improving. Text Amery Ice Shelf Antarc* Antarctic Antarctic Peninsula Antarctica Filchner Ronne Ice Shelf Filchner-Ronne Ice Shelf Ice Shelf Ice Shelves Ronne Ice Shelf Ross Ice Shelf Weddell Sea Copernicus Publications: E-Journals Amery ENVELOPE(-94.063,-94.063,56.565,56.565) Amery Ice Shelf ENVELOPE(71.000,71.000,-69.750,-69.750) Antarctic Antarctic Peninsula Ronne Ice Shelf ENVELOPE(-61.000,-61.000,-78.500,-78.500) Ross Ice Shelf Weddell Weddell Sea The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences XLII-2/W7 1521 1528 |
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Open Polar |
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Copernicus Publications: E-Journals |
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ftcopernicus |
language |
English |
description |
Due to the coverage limitation of T/P-series altimeters, the lack of bathymetric data under large ice shelves, and the inaccurate definitions of coastlines and grounding lines, the accuracy of ocean tide models around Antarctica is poorer than those in deep oceans. Using tidal measurements from tide gauges, gravimetric data and GPS records, the accuracy of seven state-of-the-art global ocean tide models (DTU10, EOT11a, GOT4.8, FES2012, FES2014, HAMTIDE12, TPXO8) is assessed, as well as the most widely-used conventional model FES2004. Four regions (Antarctic Peninsula region, Amery ice shelf region, Filchner-Ronne ice shelf region and Ross ice shelf region) are separately reported. The standard deviations of eight main constituents between the selected models are large in polar regions, especially under the big ice shelves, suggesting that the uncertainty in these regions remain large. Comparisons with in situ tidal measurements show that the most accurate model is TPXO8, and all models show worst performance in Weddell sea and Filchner-Ronne ice shelf regions. The accuracy of tidal predictions around Antarctica is gradually improving. |
format |
Text |
author |
Lei, J. Li, F. Zhang, S. Ke, H. Zhang, Q. Li, W. |
spellingShingle |
Lei, J. Li, F. Zhang, S. Ke, H. Zhang, Q. Li, W. ACCURACY ASSESSMENT OF RECENT GLOBAL OCEAN TIDE MODELS AROUND ANTARCTICA |
author_facet |
Lei, J. Li, F. Zhang, S. Ke, H. Zhang, Q. Li, W. |
author_sort |
Lei, J. |
title |
ACCURACY ASSESSMENT OF RECENT GLOBAL OCEAN TIDE MODELS AROUND ANTARCTICA |
title_short |
ACCURACY ASSESSMENT OF RECENT GLOBAL OCEAN TIDE MODELS AROUND ANTARCTICA |
title_full |
ACCURACY ASSESSMENT OF RECENT GLOBAL OCEAN TIDE MODELS AROUND ANTARCTICA |
title_fullStr |
ACCURACY ASSESSMENT OF RECENT GLOBAL OCEAN TIDE MODELS AROUND ANTARCTICA |
title_full_unstemmed |
ACCURACY ASSESSMENT OF RECENT GLOBAL OCEAN TIDE MODELS AROUND ANTARCTICA |
title_sort |
accuracy assessment of recent global ocean tide models around antarctica |
publishDate |
2018 |
url |
https://doi.org/10.5194/isprs-archives-XLII-2-W7-1521-2017 https://www.int-arch-photogramm-remote-sens-spatial-inf-sci.net/XLII-2-W7/1521/2017/ |
long_lat |
ENVELOPE(-94.063,-94.063,56.565,56.565) ENVELOPE(71.000,71.000,-69.750,-69.750) ENVELOPE(-61.000,-61.000,-78.500,-78.500) |
geographic |
Amery Amery Ice Shelf Antarctic Antarctic Peninsula Ronne Ice Shelf Ross Ice Shelf Weddell Weddell Sea |
geographic_facet |
Amery Amery Ice Shelf Antarctic Antarctic Peninsula Ronne Ice Shelf Ross Ice Shelf Weddell Weddell Sea |
genre |
Amery Ice Shelf Antarc* Antarctic Antarctic Peninsula Antarctica Filchner Ronne Ice Shelf Filchner-Ronne Ice Shelf Ice Shelf Ice Shelves Ronne Ice Shelf Ross Ice Shelf Weddell Sea |
genre_facet |
Amery Ice Shelf Antarc* Antarctic Antarctic Peninsula Antarctica Filchner Ronne Ice Shelf Filchner-Ronne Ice Shelf Ice Shelf Ice Shelves Ronne Ice Shelf Ross Ice Shelf Weddell Sea |
op_source |
eISSN: 2194-9034 |
op_relation |
doi:10.5194/isprs-archives-XLII-2-W7-1521-2017 https://www.int-arch-photogramm-remote-sens-spatial-inf-sci.net/XLII-2-W7/1521/2017/ |
op_doi |
https://doi.org/10.5194/isprs-archives-XLII-2-W7-1521-2017 |
container_title |
The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences |
container_volume |
XLII-2/W7 |
container_start_page |
1521 |
op_container_end_page |
1528 |
_version_ |
1766363329478000640 |