Can one hear supercontinents in the tides of ocean planets?
| Title: | Can one hear supercontinents in the tides of ocean planets? |
|---|---|
| Authors: | Auclair-Desrotour, Pierre, Farhat, Mohammad, Boué, Gwenaël, Gastineau, Mickaël, Laskar, Jacques |
| Publication Year: | 2023 |
| Collection: | Astrophysics Physics (Other) |
| Subject Terms: | Astrophysics - Earth and Planetary Astrophysics, Physics - Atmospheric and Oceanic Physics, Physics - Geophysics |
| More Details: | Recent observations and theoretical progress made about the history of the Earth-Moon system suggest that tidal dissipation in oceans primarily drives the long term evolution of orbital systems hosting ocean planets. Particularly, they emphasise the key role played by the geometry of land-ocean distributions in this mechanism. However, the complex way continents affect oceanic tides still remains to be elucidated. In the present study, we investigate the impact of a single supercontinent on the tidal response of an ocean planet and the induced tidally dissipated energy. The adopted approach is based on the linear tidal theory. By simplifying the continent to a spherical cap of given angular radius and position on the globe, we proceed to a harmonic analysis of the whole planet's tidal response including the coupling with the solid part due to ocean loading and self-attraction variations. In this framework, tidal flows are formulated analytically in terms of explicitly defined oceanic eigenmodes, as well as the resulting tidal Love numbers, dissipated power, and torque. The analysis highlights the symmetry breaking effect of the continent, which makes the dependence of tidal quantities on the tidal frequency become highly irregular. The metric introduced to quantify this continentality effect reveals abrupt transitions between polar and non-polar configurations, and between small-sized and medium-sized continents. Additionally, it predicts that a continent similar to South America or smaller (30{\deg}-angular radius) does not alter qualitatively the tidal response of a global ocean whatever its position on the planet. Comment: 35 pages, 13 figures, 5 tables. Accepted for publication in Astronomy & Astrophysics |
| Document Type: | Working Paper |
| Access URL: | http://arxiv.org/abs/2310.06635 |
| Accession Number: | edsarx.2310.06635 |
| Database: | arXiv |
| FullText | Text: Availability: 0 CustomLinks: – Url: http://arxiv.org/abs/2310.06635 Name: EDS - Arxiv Category: fullText Text: View this record from Arxiv MouseOverText: View this record from Arxiv – Url: https://resolver.ebsco.com/c/xy5jbn/result?sid=EBSCO:edsarx&genre=article&issn=&ISBN=&volume=&issue=&date=20231010&spage=&pages=&title=Can one hear supercontinents in the tides of ocean planets?&atitle=Can%20one%20hear%20supercontinents%20in%20the%20tides%20of%20ocean%20planets%3F&aulast=Auclair-Desrotour%2C%20Pierre&id=DOI: Name: Full Text Finder (for New FTF UI) (s8985755) Category: fullText Text: Find It @ SCU Libraries MouseOverText: Find It @ SCU Libraries |
|---|---|
| Header | DbId: edsarx DbLabel: arXiv An: edsarx.2310.06635 RelevancyScore: 1065 AccessLevel: 3 PubType: Report PubTypeId: report PreciseRelevancyScore: 1065.2705078125 |
| IllustrationInfo | |
| Items | – Name: Title Label: Title Group: Ti Data: Can one hear supercontinents in the tides of ocean planets? – Name: Author Label: Authors Group: Au Data: <searchLink fieldCode="AR" term="%22Auclair-Desrotour%2C+Pierre%22">Auclair-Desrotour, Pierre</searchLink><br /><searchLink fieldCode="AR" term="%22Farhat%2C+Mohammad%22">Farhat, Mohammad</searchLink><br /><searchLink fieldCode="AR" term="%22Boué%2C+Gwenaël%22">Boué, Gwenaël</searchLink><br /><searchLink fieldCode="AR" term="%22Gastineau%2C+Mickaël%22">Gastineau, Mickaël</searchLink><br /><searchLink fieldCode="AR" term="%22Laskar%2C+Jacques%22">Laskar, Jacques</searchLink> – Name: DatePubCY Label: Publication Year Group: Date Data: 2023 – Name: Subset Label: Collection Group: HoldingsInfo Data: Astrophysics<br />Physics (Other) – Name: Subject Label: Subject Terms Group: Su Data: <searchLink fieldCode="DE" term="%22Astrophysics+-+Earth+and+Planetary+Astrophysics%22">Astrophysics - Earth and Planetary Astrophysics</searchLink><br /><searchLink fieldCode="DE" term="%22Physics+-+Atmospheric+and+Oceanic+Physics%22">Physics - Atmospheric and Oceanic Physics</searchLink><br /><searchLink fieldCode="DE" term="%22Physics+-+Geophysics%22">Physics - Geophysics</searchLink> – Name: Abstract Label: Description Group: Ab Data: Recent observations and theoretical progress made about the history of the Earth-Moon system suggest that tidal dissipation in oceans primarily drives the long term evolution of orbital systems hosting ocean planets. Particularly, they emphasise the key role played by the geometry of land-ocean distributions in this mechanism. However, the complex way continents affect oceanic tides still remains to be elucidated. In the present study, we investigate the impact of a single supercontinent on the tidal response of an ocean planet and the induced tidally dissipated energy. The adopted approach is based on the linear tidal theory. By simplifying the continent to a spherical cap of given angular radius and position on the globe, we proceed to a harmonic analysis of the whole planet's tidal response including the coupling with the solid part due to ocean loading and self-attraction variations. In this framework, tidal flows are formulated analytically in terms of explicitly defined oceanic eigenmodes, as well as the resulting tidal Love numbers, dissipated power, and torque. The analysis highlights the symmetry breaking effect of the continent, which makes the dependence of tidal quantities on the tidal frequency become highly irregular. The metric introduced to quantify this continentality effect reveals abrupt transitions between polar and non-polar configurations, and between small-sized and medium-sized continents. Additionally, it predicts that a continent similar to South America or smaller (30{\deg}-angular radius) does not alter qualitatively the tidal response of a global ocean whatever its position on the planet.<br />Comment: 35 pages, 13 figures, 5 tables. Accepted for publication in Astronomy & Astrophysics – Name: TypeDocument Label: Document Type Group: TypDoc Data: Working Paper – Name: URL Label: Access URL Group: URL Data: <link linkTarget="URL" linkTerm="http://arxiv.org/abs/2310.06635" linkWindow="_blank">http://arxiv.org/abs/2310.06635</link> – Name: AN Label: Accession Number Group: ID Data: edsarx.2310.06635 |
| PLink | https://login.libproxy.scu.edu/login?url=https://search.ebscohost.com/login.aspx?direct=true&site=eds-live&scope=site&db=edsarx&AN=edsarx.2310.06635 |
| RecordInfo | BibRecord: BibEntity: Subjects: – SubjectFull: Astrophysics - Earth and Planetary Astrophysics Type: general – SubjectFull: Physics - Atmospheric and Oceanic Physics Type: general – SubjectFull: Physics - Geophysics Type: general Titles: – TitleFull: Can one hear supercontinents in the tides of ocean planets? Type: main BibRelationships: HasContributorRelationships: – PersonEntity: Name: NameFull: Auclair-Desrotour, Pierre – PersonEntity: Name: NameFull: Farhat, Mohammad – PersonEntity: Name: NameFull: Boué, Gwenaël – PersonEntity: Name: NameFull: Gastineau, Mickaël – PersonEntity: Name: NameFull: Laskar, Jacques IsPartOfRelationships: – BibEntity: Dates: – D: 10 M: 10 Type: published Y: 2023 |
| ResultId | 1 |