Signatures of wave erosion in Titan’s coasts

The shorelines of Titan’s hydrocarbon seas trace flooded erosional landforms such as river valleys; however, it is unclear whether coastal erosion has subsequently altered these shorelines. Spacecraft observations and theoretical models suggest that wind may cause waves to form on Titan’s seas, pote...

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Main Authors: Palermo, Rose V, Ashton, Andrew D, Soderblom, Jason M, Birch, Samuel PD, Hayes, Alexander G, Perron, J Taylor
Other Authors: Joint Program in Oceanography
Format: Article
Language:English
Published: American Association for the Advancement of Science 2024
Online Access:https://hdl.handle.net/1721.1/157678
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author Palermo, Rose V
Ashton, Andrew D
Soderblom, Jason M
Birch, Samuel PD
Hayes, Alexander G
Perron, J Taylor
author2 Joint Program in Oceanography
author_facet Joint Program in Oceanography
Palermo, Rose V
Ashton, Andrew D
Soderblom, Jason M
Birch, Samuel PD
Hayes, Alexander G
Perron, J Taylor
author_sort Palermo, Rose V
collection MIT
description The shorelines of Titan’s hydrocarbon seas trace flooded erosional landforms such as river valleys; however, it is unclear whether coastal erosion has subsequently altered these shorelines. Spacecraft observations and theoretical models suggest that wind may cause waves to form on Titan’s seas, potentially driving coastal erosion, but the observational evidence of waves is indirect, and the processes affecting shoreline evolution on Titan remain unknown. No widely accepted framework exists for using shoreline morphology to quantitatively discern coastal erosion mechanisms, even on Earth, where the dominant mechanisms are known. We combine landscape evolution models with measurements of shoreline shape on Earth to characterize how different coastal erosion mechanisms affect shoreline morphology. Applying this framework to Titan, we find that the shorelines of Titan’s seas are most consistent with flooded landscapes that subsequently have been eroded by waves, rather than a uniform erosional process or no coastal erosion, particularly if wave growth saturates at fetch lengths of tens of kilometers.
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spelling mit-1721.1/1576782024-12-23T05:17:57Z Signatures of wave erosion in Titan’s coasts Palermo, Rose V Ashton, Andrew D Soderblom, Jason M Birch, Samuel PD Hayes, Alexander G Perron, J Taylor Joint Program in Oceanography Massachusetts Institute of Technology. Department of Earth, Atmospheric, and Planetary Sciences The shorelines of Titan’s hydrocarbon seas trace flooded erosional landforms such as river valleys; however, it is unclear whether coastal erosion has subsequently altered these shorelines. Spacecraft observations and theoretical models suggest that wind may cause waves to form on Titan’s seas, potentially driving coastal erosion, but the observational evidence of waves is indirect, and the processes affecting shoreline evolution on Titan remain unknown. No widely accepted framework exists for using shoreline morphology to quantitatively discern coastal erosion mechanisms, even on Earth, where the dominant mechanisms are known. We combine landscape evolution models with measurements of shoreline shape on Earth to characterize how different coastal erosion mechanisms affect shoreline morphology. Applying this framework to Titan, we find that the shorelines of Titan’s seas are most consistent with flooded landscapes that subsequently have been eroded by waves, rather than a uniform erosional process or no coastal erosion, particularly if wave growth saturates at fetch lengths of tens of kilometers. 2024-11-26T15:18:34Z 2024-11-26T15:18:34Z 2024-06-21 2024-11-26T14:54:44Z Article http://purl.org/eprint/type/JournalArticle https://hdl.handle.net/1721.1/157678 Rose V. Palermo et al. ,Signatures of wave erosion in Titan’s coasts.Sci. Adv.10,eadn4192(2024). en 10.1126/sciadv.adn4192 Science Advances Creative Commons Attribution https://creativecommons.org/licenses/by/4.0/ application/pdf American Association for the Advancement of Science American Association for the Advancement of Science
spellingShingle Palermo, Rose V
Ashton, Andrew D
Soderblom, Jason M
Birch, Samuel PD
Hayes, Alexander G
Perron, J Taylor
Signatures of wave erosion in Titan’s coasts
title Signatures of wave erosion in Titan’s coasts
title_full Signatures of wave erosion in Titan’s coasts
title_fullStr Signatures of wave erosion in Titan’s coasts
title_full_unstemmed Signatures of wave erosion in Titan’s coasts
title_short Signatures of wave erosion in Titan’s coasts
title_sort signatures of wave erosion in titan s coasts
url https://hdl.handle.net/1721.1/157678
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