Barotropic tides of the Southern Indian Ocean and the Amery Ice Shelf cavity
International audience The 8 main tidal constituents were computed using a finite element, hydrodynamic ocean tide model over the South Indian Ocean region. The discretization of the domain is of the order of 100 km over the deep ocean and a few hundred meters near the coast. Such refinement in the...
Published in: | Geophysical Research Letters |
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Main Authors: | , , , , |
Other Authors: | , , , , , , , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
HAL CCSD
2007
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Subjects: | |
Online Access: | https://hal.science/hal-00280378 https://hal.science/hal-00280378/document https://hal.science/hal-00280378/file/2007GL030900.pdf https://doi.org/10.1029/2007GL030900 |
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ftutoulouse3hal:oai:HAL:hal-00280378v1 |
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record_format |
openpolar |
institution |
Open Polar |
collection |
Université Toulouse III - Paul Sabatier: HAL-UPS |
op_collection_id |
ftutoulouse3hal |
language |
English |
topic |
[SDU]Sciences of the Universe [physics] |
spellingShingle |
[SDU]Sciences of the Universe [physics] Maraldi, Claire Galton-Fenzi, Benjamin Lyard, Florent Testut, Laurent Coleman, Richard Barotropic tides of the Southern Indian Ocean and the Amery Ice Shelf cavity |
topic_facet |
[SDU]Sciences of the Universe [physics] |
description |
International audience The 8 main tidal constituents were computed using a finite element, hydrodynamic ocean tide model over the South Indian Ocean region. The discretization of the domain is of the order of 100 km over the deep ocean and a few hundred meters near the coast. Such refinement in the grid resolution enables wave propagation and damping on the continental shelves to be solved correctly. The model used the GEBCO 1-minute global bathymetric grid which was improved with updated topographic data. The model solutions show good agreement with in-situ observations and Topex-Poseidon altimeter measurements and are significantly better than previously published solutions. We obtain a combined standard deviation of 1.4 cm for differences of our new regional model against independent observations compared to about 2.5 cm for the other tide models. The greatest improvements are found around the Kerguelen Islands, around Antarctica and beneath the Amery Ice Shelf and can be explained by the high grid resolution used and the particular attention given to the accuracy of the bathymetry in those regions. |
author2 |
Laboratoire d'études en Géophysique et océanographie spatiales (LEGOS) Institut de Recherche pour le Développement (IRD)-Université Toulouse III - Paul Sabatier (UT3) Université de Toulouse (UT)-Université de Toulouse (UT)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire Midi-Pyrénées (OMP) Université de Toulouse (UT)-Université de Toulouse (UT)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales Toulouse (CNES)-Centre National de la Recherche Scientifique (CNRS)-Météo-France-Institut de Recherche pour le Développement (IRD)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales Toulouse (CNES)-Centre National de la Recherche Scientifique (CNRS)-Météo-France-Centre National de la Recherche Scientifique (CNRS) Centre for Marine Science University of Tasmania Hobart, Australia (UTAS) CSIRO Marine and Atmospheric Research (CSIRO-MAR) Commonwealth Scientific and Industrial Research Organisation Canberra (CSIRO) Antarctic Climate and Ecosystems Cooperative Research Centre (ACE-CRC) Echanges Côte-Large (ECOLA) Université de Toulouse (UT)-Université de Toulouse (UT)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales Toulouse (CNES)-Centre National de la Recherche Scientifique (CNRS)-Météo-France-Institut de Recherche pour le Développement (IRD)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales Toulouse (CNES)-Centre National de la Recherche Scientifique (CNRS)-Météo-France-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD)-Université Toulouse III - Paul Sabatier (UT3) |
format |
Article in Journal/Newspaper |
author |
Maraldi, Claire Galton-Fenzi, Benjamin Lyard, Florent Testut, Laurent Coleman, Richard |
author_facet |
Maraldi, Claire Galton-Fenzi, Benjamin Lyard, Florent Testut, Laurent Coleman, Richard |
author_sort |
Maraldi, Claire |
title |
Barotropic tides of the Southern Indian Ocean and the Amery Ice Shelf cavity |
title_short |
Barotropic tides of the Southern Indian Ocean and the Amery Ice Shelf cavity |
title_full |
Barotropic tides of the Southern Indian Ocean and the Amery Ice Shelf cavity |
title_fullStr |
Barotropic tides of the Southern Indian Ocean and the Amery Ice Shelf cavity |
title_full_unstemmed |
Barotropic tides of the Southern Indian Ocean and the Amery Ice Shelf cavity |
title_sort |
barotropic tides of the southern indian ocean and the amery ice shelf cavity |
publisher |
HAL CCSD |
publishDate |
2007 |
url |
https://hal.science/hal-00280378 https://hal.science/hal-00280378/document https://hal.science/hal-00280378/file/2007GL030900.pdf https://doi.org/10.1029/2007GL030900 |
long_lat |
ENVELOPE(-94.063,-94.063,56.565,56.565) ENVELOPE(71.000,71.000,-69.750,-69.750) |
geographic |
Kerguelen Kerguelen Islands Indian Amery Amery Ice Shelf |
geographic_facet |
Kerguelen Kerguelen Islands Indian Amery Amery Ice Shelf |
genre |
Amery Ice Shelf Antarc* Antarctica Ice Shelf Kerguelen Islands |
genre_facet |
Amery Ice Shelf Antarc* Antarctica Ice Shelf Kerguelen Islands |
op_source |
ISSN: 0094-8276 EISSN: 1944-8007 Geophysical Research Letters https://hal.science/hal-00280378 Geophysical Research Letters, 2007, 34, p. 1-5. ISSN 0094-8276. ⟨10.1029/2007GL030900⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1029/2007GL030900 hal-00280378 https://hal.science/hal-00280378 https://hal.science/hal-00280378/document https://hal.science/hal-00280378/file/2007GL030900.pdf doi:10.1029/2007GL030900 |
op_rights |
info:eu-repo/semantics/OpenAccess |
op_doi |
https://doi.org/10.1029/2007GL030900 |
container_title |
Geophysical Research Letters |
container_volume |
34 |
container_issue |
18 |
_version_ |
1785552755396444160 |
spelling |
ftutoulouse3hal:oai:HAL:hal-00280378v1 2023-12-17T10:18:14+01:00 Barotropic tides of the Southern Indian Ocean and the Amery Ice Shelf cavity Maraldi, Claire Galton-Fenzi, Benjamin Lyard, Florent Testut, Laurent Coleman, Richard Laboratoire d'études en Géophysique et océanographie spatiales (LEGOS) Institut de Recherche pour le Développement (IRD)-Université Toulouse III - Paul Sabatier (UT3) Université de Toulouse (UT)-Université de Toulouse (UT)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire Midi-Pyrénées (OMP) Université de Toulouse (UT)-Université de Toulouse (UT)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales Toulouse (CNES)-Centre National de la Recherche Scientifique (CNRS)-Météo-France-Institut de Recherche pour le Développement (IRD)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales Toulouse (CNES)-Centre National de la Recherche Scientifique (CNRS)-Météo-France-Centre National de la Recherche Scientifique (CNRS) Centre for Marine Science University of Tasmania Hobart, Australia (UTAS) CSIRO Marine and Atmospheric Research (CSIRO-MAR) Commonwealth Scientific and Industrial Research Organisation Canberra (CSIRO) Antarctic Climate and Ecosystems Cooperative Research Centre (ACE-CRC) Echanges Côte-Large (ECOLA) Université de Toulouse (UT)-Université de Toulouse (UT)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales Toulouse (CNES)-Centre National de la Recherche Scientifique (CNRS)-Météo-France-Institut de Recherche pour le Développement (IRD)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales Toulouse (CNES)-Centre National de la Recherche Scientifique (CNRS)-Météo-France-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD)-Université Toulouse III - Paul Sabatier (UT3) 2007 https://hal.science/hal-00280378 https://hal.science/hal-00280378/document https://hal.science/hal-00280378/file/2007GL030900.pdf https://doi.org/10.1029/2007GL030900 en eng HAL CCSD American Geophysical Union info:eu-repo/semantics/altIdentifier/doi/10.1029/2007GL030900 hal-00280378 https://hal.science/hal-00280378 https://hal.science/hal-00280378/document https://hal.science/hal-00280378/file/2007GL030900.pdf doi:10.1029/2007GL030900 info:eu-repo/semantics/OpenAccess ISSN: 0094-8276 EISSN: 1944-8007 Geophysical Research Letters https://hal.science/hal-00280378 Geophysical Research Letters, 2007, 34, p. 1-5. ISSN 0094-8276. ⟨10.1029/2007GL030900⟩ [SDU]Sciences of the Universe [physics] info:eu-repo/semantics/article Journal articles 2007 ftutoulouse3hal https://doi.org/10.1029/2007GL030900 2023-11-22T18:01:12Z International audience The 8 main tidal constituents were computed using a finite element, hydrodynamic ocean tide model over the South Indian Ocean region. The discretization of the domain is of the order of 100 km over the deep ocean and a few hundred meters near the coast. Such refinement in the grid resolution enables wave propagation and damping on the continental shelves to be solved correctly. The model used the GEBCO 1-minute global bathymetric grid which was improved with updated topographic data. The model solutions show good agreement with in-situ observations and Topex-Poseidon altimeter measurements and are significantly better than previously published solutions. We obtain a combined standard deviation of 1.4 cm for differences of our new regional model against independent observations compared to about 2.5 cm for the other tide models. The greatest improvements are found around the Kerguelen Islands, around Antarctica and beneath the Amery Ice Shelf and can be explained by the high grid resolution used and the particular attention given to the accuracy of the bathymetry in those regions. Article in Journal/Newspaper Amery Ice Shelf Antarc* Antarctica Ice Shelf Kerguelen Islands Université Toulouse III - Paul Sabatier: HAL-UPS Kerguelen Kerguelen Islands Indian Amery ENVELOPE(-94.063,-94.063,56.565,56.565) Amery Ice Shelf ENVELOPE(71.000,71.000,-69.750,-69.750) Geophysical Research Letters 34 18 |