Decoding the Interplay Between Tidal Notch Geometry and Sea‐Level Variability During the Last Interglacial (Marine Isotope Stage 5e) High Stand
Abstract Relic coastal landforms (fossil corals, cemented intertidal deposits, or erosive features carved onto rock coasts) serve as sea‐level index points (SLIPs), that are widely used to reconstruct past sea‐level changes. Traditional SLIP‐based sea‐level reconstructions face challenges in capturi...
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| Format: | Article |
| Language: | English |
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Wiley
2024-03-01
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| Series: | Geophysical Research Letters |
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| Online Access: | https://doi.org/10.1029/2023GL106829 |
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| author | N. Georgiou P. Stocchi E. Casella A. Rovere |
| author_facet | N. Georgiou P. Stocchi E. Casella A. Rovere |
| author_sort | N. Georgiou |
| collection | DOAJ |
| description | Abstract Relic coastal landforms (fossil corals, cemented intertidal deposits, or erosive features carved onto rock coasts) serve as sea‐level index points (SLIPs), that are widely used to reconstruct past sea‐level changes. Traditional SLIP‐based sea‐level reconstructions face challenges in capturing continuous sea‐level variability and dating erosional SLIPs, such as tidal notches. Here, we propose a novel approach to such challenges. We use a numerical model of cliff erosion embedded within a Monte Carlo simulation to investigate the most likely sea‐level scenarios responsible for shaping one of the best‐preserved tidal notches of Last Interglacial age in Sardinia, Italy. Results align with Glacial Isostatic Adjustment model predictions, indicating that synchronized or out‐of‐sync ice‐volume shifts in Antarctic and Greenland ice sheets can reproduce the notch morphology, with sea level confidently peaking at 6 m and only under a higher than present erosion regime. This new approach yields insight into sea‐level trends during the Last Interglacial. |
| format | Article |
| id | doaj-art-e7e1ae2dae3f4868b1c162c2f5acc13c |
| institution | Kabale University |
| issn | 0094-8276 1944-8007 |
| language | English |
| publishDate | 2024-03-01 |
| publisher | Wiley |
| record_format | Article |
| series | Geophysical Research Letters |
| spelling | doaj-art-e7e1ae2dae3f4868b1c162c2f5acc13c2025-08-20T03:49:37ZengWileyGeophysical Research Letters0094-82761944-80072024-03-01516n/an/a10.1029/2023GL106829Decoding the Interplay Between Tidal Notch Geometry and Sea‐Level Variability During the Last Interglacial (Marine Isotope Stage 5e) High StandN. Georgiou0P. Stocchi1E. Casella2A. Rovere3Ca’ Foscari University of Venice Department of Environmental Sciences Informatics and Statistics Mestre (VE) ItalyDipartimento di Scienze Pure e Applicate (DiSPeA) Università degli Studi di Urbino “Carlo Bo” Urbino ItalyCa’ Foscari University of Venice Department of Environmental Sciences Informatics and Statistics Mestre (VE) ItalyCa’ Foscari University of Venice Department of Environmental Sciences Informatics and Statistics Mestre (VE) ItalyAbstract Relic coastal landforms (fossil corals, cemented intertidal deposits, or erosive features carved onto rock coasts) serve as sea‐level index points (SLIPs), that are widely used to reconstruct past sea‐level changes. Traditional SLIP‐based sea‐level reconstructions face challenges in capturing continuous sea‐level variability and dating erosional SLIPs, such as tidal notches. Here, we propose a novel approach to such challenges. We use a numerical model of cliff erosion embedded within a Monte Carlo simulation to investigate the most likely sea‐level scenarios responsible for shaping one of the best‐preserved tidal notches of Last Interglacial age in Sardinia, Italy. Results align with Glacial Isostatic Adjustment model predictions, indicating that synchronized or out‐of‐sync ice‐volume shifts in Antarctic and Greenland ice sheets can reproduce the notch morphology, with sea level confidently peaking at 6 m and only under a higher than present erosion regime. This new approach yields insight into sea‐level trends during the Last Interglacial.https://doi.org/10.1029/2023GL106829tidal notchcliff erosion numerical modelLast Interglacial MIS 5esea level changegeomorphologyMonte Carlo |
| spellingShingle | N. Georgiou P. Stocchi E. Casella A. Rovere Decoding the Interplay Between Tidal Notch Geometry and Sea‐Level Variability During the Last Interglacial (Marine Isotope Stage 5e) High Stand Geophysical Research Letters tidal notch cliff erosion numerical model Last Interglacial MIS 5e sea level change geomorphology Monte Carlo |
| title | Decoding the Interplay Between Tidal Notch Geometry and Sea‐Level Variability During the Last Interglacial (Marine Isotope Stage 5e) High Stand |
| title_full | Decoding the Interplay Between Tidal Notch Geometry and Sea‐Level Variability During the Last Interglacial (Marine Isotope Stage 5e) High Stand |
| title_fullStr | Decoding the Interplay Between Tidal Notch Geometry and Sea‐Level Variability During the Last Interglacial (Marine Isotope Stage 5e) High Stand |
| title_full_unstemmed | Decoding the Interplay Between Tidal Notch Geometry and Sea‐Level Variability During the Last Interglacial (Marine Isotope Stage 5e) High Stand |
| title_short | Decoding the Interplay Between Tidal Notch Geometry and Sea‐Level Variability During the Last Interglacial (Marine Isotope Stage 5e) High Stand |
| title_sort | decoding the interplay between tidal notch geometry and sea level variability during the last interglacial marine isotope stage 5e high stand |
| topic | tidal notch cliff erosion numerical model Last Interglacial MIS 5e sea level change geomorphology Monte Carlo |
| url | https://doi.org/10.1029/2023GL106829 |
| work_keys_str_mv | AT ngeorgiou decodingtheinterplaybetweentidalnotchgeometryandsealevelvariabilityduringthelastinterglacialmarineisotopestage5ehighstand AT pstocchi decodingtheinterplaybetweentidalnotchgeometryandsealevelvariabilityduringthelastinterglacialmarineisotopestage5ehighstand AT ecasella decodingtheinterplaybetweentidalnotchgeometryandsealevelvariabilityduringthelastinterglacialmarineisotopestage5ehighstand AT arovere decodingtheinterplaybetweentidalnotchgeometryandsealevelvariabilityduringthelastinterglacialmarineisotopestage5ehighstand |