A 1500‐year record of North Atlantic storm flooding from lacustrine sediments, Shetland Islands (UK)
ABSTRACT Severe storm flooding poses a major hazard to the coasts of north‐western Europe. However, the long‐term recurrence patterns of extreme coastal flooding and their governing factors are poorly understood. Therefore, high‐resolution sedimentary records of past North Atlantic storm flooding ar...
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Online Access: | http://dx.doi.org/10.1002/jqs.3568 https://onlinelibrary.wiley.com/doi/pdf/10.1002/jqs.3568 |
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crwiley:10.1002/jqs.3568 2024-06-23T07:54:57+00:00 A 1500‐year record of North Atlantic storm flooding from lacustrine sediments, Shetland Islands (UK) Hess, Katharina Engel, Max Patel, Tasnim Vakhrameeva, Polina Koutsodendris, Andreas Klemt, Eckehard Hansteen, Thor H. Kempf, Philipp Dawson, Sue Schön, Isa Heyvaert, Vanessa M. A. Belgian Federal Science Policy Office 2023 http://dx.doi.org/10.1002/jqs.3568 https://onlinelibrary.wiley.com/doi/pdf/10.1002/jqs.3568 en eng Wiley http://creativecommons.org/licenses/by/4.0/ Journal of Quaternary Science volume 39, issue 1, page 37-53 ISSN 0267-8179 1099-1417 journal-article 2023 crwiley https://doi.org/10.1002/jqs.3568 2024-06-04T06:48:02Z ABSTRACT Severe storm flooding poses a major hazard to the coasts of north‐western Europe. However, the long‐term recurrence patterns of extreme coastal flooding and their governing factors are poorly understood. Therefore, high‐resolution sedimentary records of past North Atlantic storm flooding are required. This multi‐proxy study reconstructs storm‐induced overwash processes from coastal lake sediments on the Shetland Islands using grain‐size and geochemical data, and the re‐analysis of historical data. The chronostratigraphy is based on Bayesian age–depth modelling using accelerator mass spectrometry 14 C and 137 Cs data. A high XRF‐based Si/Ti ratio and the unimodal grain‐size distribution link the sand layers to the beach and thus storm‐induced overwash events. Periods with more frequent storm flooding occurred 980–1050, 1150–1300, 1450–1550, 1820–1900 and 1950–2000 ce, which is largely consistent with a positive North Atlantic Oscillation mode. The Little Ice Age (1400–1850 ce ) shows a gap of major sand layers suggesting a southward shift of storm tracks and a seasonal variance with more storm floods in spring and autumn. Warmer phases shifted winter storm tracks towards the north‐east Atlantic, indicating a possible trend for future storm‐track changes and increased storm flooding in the northern North Sea region. Article in Journal/Newspaper North Atlantic North Atlantic oscillation North East Atlantic Wiley Online Library Journal of Quaternary Science |
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Open Polar |
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Wiley Online Library |
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crwiley |
language |
English |
description |
ABSTRACT Severe storm flooding poses a major hazard to the coasts of north‐western Europe. However, the long‐term recurrence patterns of extreme coastal flooding and their governing factors are poorly understood. Therefore, high‐resolution sedimentary records of past North Atlantic storm flooding are required. This multi‐proxy study reconstructs storm‐induced overwash processes from coastal lake sediments on the Shetland Islands using grain‐size and geochemical data, and the re‐analysis of historical data. The chronostratigraphy is based on Bayesian age–depth modelling using accelerator mass spectrometry 14 C and 137 Cs data. A high XRF‐based Si/Ti ratio and the unimodal grain‐size distribution link the sand layers to the beach and thus storm‐induced overwash events. Periods with more frequent storm flooding occurred 980–1050, 1150–1300, 1450–1550, 1820–1900 and 1950–2000 ce, which is largely consistent with a positive North Atlantic Oscillation mode. The Little Ice Age (1400–1850 ce ) shows a gap of major sand layers suggesting a southward shift of storm tracks and a seasonal variance with more storm floods in spring and autumn. Warmer phases shifted winter storm tracks towards the north‐east Atlantic, indicating a possible trend for future storm‐track changes and increased storm flooding in the northern North Sea region. |
author2 |
Belgian Federal Science Policy Office |
format |
Article in Journal/Newspaper |
author |
Hess, Katharina Engel, Max Patel, Tasnim Vakhrameeva, Polina Koutsodendris, Andreas Klemt, Eckehard Hansteen, Thor H. Kempf, Philipp Dawson, Sue Schön, Isa Heyvaert, Vanessa M. A. |
spellingShingle |
Hess, Katharina Engel, Max Patel, Tasnim Vakhrameeva, Polina Koutsodendris, Andreas Klemt, Eckehard Hansteen, Thor H. Kempf, Philipp Dawson, Sue Schön, Isa Heyvaert, Vanessa M. A. A 1500‐year record of North Atlantic storm flooding from lacustrine sediments, Shetland Islands (UK) |
author_facet |
Hess, Katharina Engel, Max Patel, Tasnim Vakhrameeva, Polina Koutsodendris, Andreas Klemt, Eckehard Hansteen, Thor H. Kempf, Philipp Dawson, Sue Schön, Isa Heyvaert, Vanessa M. A. |
author_sort |
Hess, Katharina |
title |
A 1500‐year record of North Atlantic storm flooding from lacustrine sediments, Shetland Islands (UK) |
title_short |
A 1500‐year record of North Atlantic storm flooding from lacustrine sediments, Shetland Islands (UK) |
title_full |
A 1500‐year record of North Atlantic storm flooding from lacustrine sediments, Shetland Islands (UK) |
title_fullStr |
A 1500‐year record of North Atlantic storm flooding from lacustrine sediments, Shetland Islands (UK) |
title_full_unstemmed |
A 1500‐year record of North Atlantic storm flooding from lacustrine sediments, Shetland Islands (UK) |
title_sort |
1500‐year record of north atlantic storm flooding from lacustrine sediments, shetland islands (uk) |
publisher |
Wiley |
publishDate |
2023 |
url |
http://dx.doi.org/10.1002/jqs.3568 https://onlinelibrary.wiley.com/doi/pdf/10.1002/jqs.3568 |
genre |
North Atlantic North Atlantic oscillation North East Atlantic |
genre_facet |
North Atlantic North Atlantic oscillation North East Atlantic |
op_source |
Journal of Quaternary Science volume 39, issue 1, page 37-53 ISSN 0267-8179 1099-1417 |
op_rights |
http://creativecommons.org/licenses/by/4.0/ |
op_doi |
https://doi.org/10.1002/jqs.3568 |
container_title |
Journal of Quaternary Science |
_version_ |
1802647301359927296 |