Sedimentological storm and tsunami record of Loch Flugarth, Shetland Islands (UK) ...

This dataset comprises the geochemical and sedimentological results of both publications Hess et al., 2023 and Engel et al., 2023. Hess et al., 2023: Severe storm flooding poses a major hazard to the coasts of north-western Europe. However, the long-term recurrence patterns of extreme coastal floodi...

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Bibliographic Details
Main Authors: Hess, Katharina, Engel, Max, Koutsodendris, Andreas
Format: Dataset
Language:unknown
Published: heiDATA 2023
Subjects:
Online Access:https://dx.doi.org/10.11588/data/qjezht
https://heidata.uni-heidelberg.de/citation?persistentId=doi:10.11588/data/QJEZHT
Description
Summary:This dataset comprises the geochemical and sedimentological results of both publications Hess et al., 2023 and Engel et al., 2023. Hess et al., 2023: 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 ...