A 1500-year record of North Atlantic storm flooding from lacustrine sediments, Shetland Islands (UK)
- Author
- Katharina Hess, Max Engel, Tasnim Patel, Polina Vakhrameeva, Andreas Koutsodendris, Eckehard Klemt, Thor H. Hansteen, Philipp Kempf, Sue Dawson, Isa Schoen and Vanessa Heyvaert (UGent)
- Organization
- 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 14C and 137Cs 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.
- Keywords
- LATE HOLOCENE STORMINESS, GRAIN-SIZE DISTRIBUTION, ATMOSPHERIC CIRCULATION, OUTER HEBRIDES, OSCILLATION, EVENTS, RECONSTRUCTION, INDICATORS, COASTLINE, PATTERNS, Little Ice Age, North Atlantic Oscillation (NAO), North Sea, sand overwash, storm frequency
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Citation
Please use this url to cite or link to this publication: http://hdl.handle.net/1854/LU-01HWSN1KZ59BFQ92SRN2RTD8J9
- MLA
- Hess, Katharina, et al. “A 1500-Year Record of North Atlantic Storm Flooding from Lacustrine Sediments, Shetland Islands (UK).” JOURNAL OF QUATERNARY SCIENCE, vol. 39, no. 1, 2024, pp. 37–53, doi:10.1002/jqs.3568.
- APA
- Hess, K., Engel, M., Patel, T., Vakhrameeva, P., Koutsodendris, A., Klemt, E., … Heyvaert, V. (2024). A 1500-year record of North Atlantic storm flooding from lacustrine sediments, Shetland Islands (UK). JOURNAL OF QUATERNARY SCIENCE, 39(1), 37–53. https://doi.org/10.1002/jqs.3568
- Chicago author-date
- Hess, Katharina, Max Engel, Tasnim Patel, Polina Vakhrameeva, Andreas Koutsodendris, Eckehard Klemt, Thor H. Hansteen, et al. 2024. “A 1500-Year Record of North Atlantic Storm Flooding from Lacustrine Sediments, Shetland Islands (UK).” JOURNAL OF QUATERNARY SCIENCE 39 (1): 37–53. https://doi.org/10.1002/jqs.3568.
- Chicago author-date (all authors)
- Hess, Katharina, Max Engel, Tasnim Patel, Polina Vakhrameeva, Andreas Koutsodendris, Eckehard Klemt, Thor H. Hansteen, Philipp Kempf, Sue Dawson, Isa Schoen, and Vanessa Heyvaert. 2024. “A 1500-Year Record of North Atlantic Storm Flooding from Lacustrine Sediments, Shetland Islands (UK).” JOURNAL OF QUATERNARY SCIENCE 39 (1): 37–53. doi:10.1002/jqs.3568.
- Vancouver
- 1.Hess K, Engel M, Patel T, Vakhrameeva P, Koutsodendris A, Klemt E, et al. A 1500-year record of North Atlantic storm flooding from lacustrine sediments, Shetland Islands (UK). JOURNAL OF QUATERNARY SCIENCE. 2024;39(1):37–53.
- IEEE
- [1]K. Hess et al., “A 1500-year record of North Atlantic storm flooding from lacustrine sediments, Shetland Islands (UK),” JOURNAL OF QUATERNARY SCIENCE, vol. 39, no. 1, pp. 37–53, 2024.
@article{01HWSN1KZ59BFQ92SRN2RTD8J9,
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 14C and 137Cs 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.}},
author = {{Hess, Katharina and Engel, Max and Patel, Tasnim and Vakhrameeva, Polina and Koutsodendris, Andreas and Klemt, Eckehard and Hansteen, Thor H. and Kempf, Philipp and Dawson, Sue and Schoen, Isa and Heyvaert, Vanessa}},
issn = {{0267-8179}},
journal = {{JOURNAL OF QUATERNARY SCIENCE}},
keywords = {{LATE HOLOCENE STORMINESS,GRAIN-SIZE DISTRIBUTION,ATMOSPHERIC CIRCULATION,OUTER HEBRIDES,OSCILLATION,EVENTS,RECONSTRUCTION,INDICATORS,COASTLINE,PATTERNS,Little Ice Age,North Atlantic Oscillation (NAO),North Sea,sand overwash,storm frequency}},
language = {{eng}},
number = {{1}},
pages = {{37--53}},
title = {{A 1500-year record of North Atlantic storm flooding from lacustrine sediments, Shetland Islands (UK)}},
url = {{http://doi.org/10.1002/jqs.3568}},
volume = {{39}},
year = {{2024}},
}
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