Resonant Diurnal Internal Tides in the North Atlantic: 2. Modeling
Abstract An unconstrained global ocean simulation for 2020 supports past observations of diurnal internal tides by acoustic tomography during the 1991–1992 Acoustic Mid‐Ocean Dynamics Experiment in the Western North Atlantic. Explicitly representing the tides, the simulation reproduces the functiona...
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ftdoajarticles:oai:doaj.org/article:560ee3b2459b4d278e4a36972048c58b 2024-09-15T18:21:55+00:00 Resonant Diurnal Internal Tides in the North Atlantic: 2. Modeling B. D. Dushaw D. Menemenlis 2023-02-01T00:00:00Z https://doi.org/10.1029/2022GL101193 https://doaj.org/article/560ee3b2459b4d278e4a36972048c58b EN eng Wiley https://doi.org/10.1029/2022GL101193 https://doaj.org/toc/0094-8276 https://doaj.org/toc/1944-8007 1944-8007 0094-8276 doi:10.1029/2022GL101193 https://doaj.org/article/560ee3b2459b4d278e4a36972048c58b Geophysical Research Letters, Vol 50, Iss 3, Pp n/a-n/a (2023) internal tides barotropic tides ocean acoustic tomography global ocean model model testing baroclinic tide dissipation Geophysics. Cosmic physics QC801-809 article 2023 ftdoajarticles https://doi.org/10.1029/2022GL101193 2024-08-05T17:49:23Z Abstract An unconstrained global ocean simulation for 2020 supports past observations of diurnal internal tides by acoustic tomography during the 1991–1992 Acoustic Mid‐Ocean Dynamics Experiment in the Western North Atlantic. Explicitly representing the tides, the simulation reproduces the functional form and resonant state of K1 and O1 internal‐tide standing waves, while providing a more realistic physical picture of them. The tomographic data were used to predict the tides in 2020. Not surprisingly, the characteristics of the barotropic and internal tides of the unconstrained simulation deviate from observations. The simulated barotropic tidal currents have excessive, irregular amplitude and lead the acoustic tidal predictions by about 2 hr. While internal‐tide phase coherence is apparent, the simulated internal‐tide variations were irregular in amplitude and phase, unlike the observations. The tomographic tidal measurements therefore provide a quantitative benchmark for improved model representation of tides, internal tides, and dissipation. Article in Journal/Newspaper North Atlantic Directory of Open Access Journals: DOAJ Articles Geophysical Research Letters 50 3 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
internal tides barotropic tides ocean acoustic tomography global ocean model model testing baroclinic tide dissipation Geophysics. Cosmic physics QC801-809 |
spellingShingle |
internal tides barotropic tides ocean acoustic tomography global ocean model model testing baroclinic tide dissipation Geophysics. Cosmic physics QC801-809 B. D. Dushaw D. Menemenlis Resonant Diurnal Internal Tides in the North Atlantic: 2. Modeling |
topic_facet |
internal tides barotropic tides ocean acoustic tomography global ocean model model testing baroclinic tide dissipation Geophysics. Cosmic physics QC801-809 |
description |
Abstract An unconstrained global ocean simulation for 2020 supports past observations of diurnal internal tides by acoustic tomography during the 1991–1992 Acoustic Mid‐Ocean Dynamics Experiment in the Western North Atlantic. Explicitly representing the tides, the simulation reproduces the functional form and resonant state of K1 and O1 internal‐tide standing waves, while providing a more realistic physical picture of them. The tomographic data were used to predict the tides in 2020. Not surprisingly, the characteristics of the barotropic and internal tides of the unconstrained simulation deviate from observations. The simulated barotropic tidal currents have excessive, irregular amplitude and lead the acoustic tidal predictions by about 2 hr. While internal‐tide phase coherence is apparent, the simulated internal‐tide variations were irregular in amplitude and phase, unlike the observations. The tomographic tidal measurements therefore provide a quantitative benchmark for improved model representation of tides, internal tides, and dissipation. |
format |
Article in Journal/Newspaper |
author |
B. D. Dushaw D. Menemenlis |
author_facet |
B. D. Dushaw D. Menemenlis |
author_sort |
B. D. Dushaw |
title |
Resonant Diurnal Internal Tides in the North Atlantic: 2. Modeling |
title_short |
Resonant Diurnal Internal Tides in the North Atlantic: 2. Modeling |
title_full |
Resonant Diurnal Internal Tides in the North Atlantic: 2. Modeling |
title_fullStr |
Resonant Diurnal Internal Tides in the North Atlantic: 2. Modeling |
title_full_unstemmed |
Resonant Diurnal Internal Tides in the North Atlantic: 2. Modeling |
title_sort |
resonant diurnal internal tides in the north atlantic: 2. modeling |
publisher |
Wiley |
publishDate |
2023 |
url |
https://doi.org/10.1029/2022GL101193 https://doaj.org/article/560ee3b2459b4d278e4a36972048c58b |
genre |
North Atlantic |
genre_facet |
North Atlantic |
op_source |
Geophysical Research Letters, Vol 50, Iss 3, Pp n/a-n/a (2023) |
op_relation |
https://doi.org/10.1029/2022GL101193 https://doaj.org/toc/0094-8276 https://doaj.org/toc/1944-8007 1944-8007 0094-8276 doi:10.1029/2022GL101193 https://doaj.org/article/560ee3b2459b4d278e4a36972048c58b |
op_doi |
https://doi.org/10.1029/2022GL101193 |
container_title |
Geophysical Research Letters |
container_volume |
50 |
container_issue |
3 |
_version_ |
1810460950709403648 |