Articles | Volume 19, issue 4
https://doi.org/10.5194/os-19-1315-2023
© Author(s) 2023. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/os-19-1315-2023
© Author(s) 2023. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Research article
| 
29 Aug 2023
Research article |
| 29 Aug 2023
| 29 Aug 2023
Regional modeling of internal-tide dynamics around New Caledonia – Part 1: Coherent internal-tide characteristics and sea surface height signature
Arne Bendinger
CORRESPONDING AUTHOR
Université de Toulouse, LEGOS (CNES/CNRS/IRD/UPS), Toulouse, France
Sophie Cravatte
Université de Toulouse, LEGOS (CNES/CNRS/IRD/UPS), Toulouse, France
IRD, Centre IRD de Nouméa, New Caledonia
Lionel Gourdeau
Université de Toulouse, LEGOS (CNES/CNRS/IRD/UPS), Toulouse, France
Laurent Brodeau
Université Grenoble Alpes, CNRS, INRAE, IRD, Grenoble INP, Institut des Géosciences de l'Environnement, Grenoble, France
now at: DATLAS, Grenoble, France
Aurélie Albert
Université Grenoble Alpes, CNRS, INRAE, IRD, Grenoble INP, Institut des Géosciences de l'Environnement, Grenoble, France
Michel Tchilibou
Université de Toulouse, LEGOS (CNES/CNRS/IRD/UPS), Toulouse, France
now at: CLS, Ramonville-Saint-Agne, France
Florent Lyard
Université de Toulouse, LEGOS (CNES/CNRS/IRD/UPS), Toulouse, France
Clément Vic
Laboratoire d’Océanographie Physique et Spatiale, Univ. Brest, CNRS, Ifremer, IRD, Plouzané, France
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Short summary
New Caledonia is a hot spot of internal-tide generation due to complex bathymetry. Regional modeling quantifies the coherent internal tide and shows that most energy is converted in shallow waters and on very steep slopes. The region is a challenge for observability of balanced dynamics due to strong internal-tide sea surface height (SSH) signatures at similar wavelengths. Correcting the SSH for the coherent internal tide may increase the observability of balanced motion to < 100 km.
New Caledonia is a hot spot of internal-tide generation due to complex bathymetry. Regional...
