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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Format: | Article in Journal/Newspaper |
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Online Access: | https://doi.org/10.5194/isprs-archives-XLII-2-W7-1521-2017 https://doaj.org/article/26a365e1d29d430dabdce37f4b74f0b7 |
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ftdoajarticles:oai:doaj.org/article:26a365e1d29d430dabdce37f4b74f0b7 2023-05-15T13:22:07+02:00 ACCURACY ASSESSMENT OF RECENT GLOBAL OCEAN TIDE MODELS AROUND ANTARCTICA J. Lei F. Li S. Zhang H. Ke Q. Zhang W. Li 2017-09-01T00:00:00Z https://doi.org/10.5194/isprs-archives-XLII-2-W7-1521-2017 https://doaj.org/article/26a365e1d29d430dabdce37f4b74f0b7 EN eng Copernicus Publications https://www.int-arch-photogramm-remote-sens-spatial-inf-sci.net/XLII-2-W7/1521/2017/isprs-archives-XLII-2-W7-1521-2017.pdf https://doaj.org/toc/1682-1750 https://doaj.org/toc/2194-9034 doi:10.5194/isprs-archives-XLII-2-W7-1521-2017 1682-1750 2194-9034 https://doaj.org/article/26a365e1d29d430dabdce37f4b74f0b7 The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, Vol XLII-2-W7, Pp 1521-1528 (2017) Technology T Engineering (General). Civil engineering (General) TA1-2040 Applied optics. Photonics TA1501-1820 article 2017 ftdoajarticles https://doi.org/10.5194/isprs-archives-XLII-2-W7-1521-2017 2022-12-31T14:49:15Z 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. Article in Journal/Newspaper 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 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) 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 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
Technology T Engineering (General). Civil engineering (General) TA1-2040 Applied optics. Photonics TA1501-1820 |
spellingShingle |
Technology T Engineering (General). Civil engineering (General) TA1-2040 Applied optics. Photonics TA1501-1820 J. Lei F. Li S. Zhang H. Ke Q. Zhang W. Li ACCURACY ASSESSMENT OF RECENT GLOBAL OCEAN TIDE MODELS AROUND ANTARCTICA |
topic_facet |
Technology T Engineering (General). Civil engineering (General) TA1-2040 Applied optics. Photonics TA1501-1820 |
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 |
Article in Journal/Newspaper |
author |
J. Lei F. Li S. Zhang H. Ke Q. Zhang W. Li |
author_facet |
J. Lei F. Li S. Zhang H. Ke Q. Zhang W. Li |
author_sort |
J. Lei |
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 |
publisher |
Copernicus Publications |
publishDate |
2017 |
url |
https://doi.org/10.5194/isprs-archives-XLII-2-W7-1521-2017 https://doaj.org/article/26a365e1d29d430dabdce37f4b74f0b7 |
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 |
The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, Vol XLII-2-W7, Pp 1521-1528 (2017) |
op_relation |
https://www.int-arch-photogramm-remote-sens-spatial-inf-sci.net/XLII-2-W7/1521/2017/isprs-archives-XLII-2-W7-1521-2017.pdf https://doaj.org/toc/1682-1750 https://doaj.org/toc/2194-9034 doi:10.5194/isprs-archives-XLII-2-W7-1521-2017 1682-1750 2194-9034 https://doaj.org/article/26a365e1d29d430dabdce37f4b74f0b7 |
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_ |
1766363388362883072 |