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Morphological Impacts due to Storms on a Macro-Tidal Beach

William Bennett Orcid Logo, Harshinie Karunarathna Orcid Logo, Dominic Reeve Orcid Logo

Coastal Dynamics 2017, Issue: 9

Swansea University Authors: William Bennett Orcid Logo, Harshinie Karunarathna Orcid Logo, Dominic Reeve Orcid Logo

Abstract

A set of storms, with varying intensity and duration, was used to investigate the range of morphological impacts on a macro-tidal beach (Sefton coast, Liverpool Bay, UK), using a nested computational modelling framework. Extreme wave and water level conditions were extracted from modelled and observ...

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Published in: Coastal Dynamics 2017
Published: 2017
URI: https://cronfa.swan.ac.uk/Record/cronfa62018
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first_indexed 2022-11-24T10:25:16Z
last_indexed 2023-01-13T19:23:11Z
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spelling 2022-12-06T12:38:59.2653628 v2 62018 2022-11-24 Morphological Impacts due to Storms on a Macro-Tidal Beach 02f99b24e395a83ca52f7b85b151b29b 0000-0002-7229-5747 William Bennett William Bennett true false 0d3d327a240d49b53c78e02b7c00e625 0000-0002-9087-3811 Harshinie Karunarathna Harshinie Karunarathna true false 3e76fcc2bb3cde4ddee2c8edfd2f0082 0000-0003-1293-4743 Dominic Reeve Dominic Reeve true false 2022-11-24 CIVL A set of storms, with varying intensity and duration, was used to investigate the range of morphological impacts on a macro-tidal beach (Sefton coast, Liverpool Bay, UK), using a nested computational modelling framework. Extreme wave and water level conditions were extracted from modelled and observed data corresponding to a range of return periods, and fitted to a storm profile to provide real time offshore boundary forcing. The peak water level was found to be the main driving force in defining the bed evolution, with the strongest changes along the northern part of the Sefton coast. Breaching of the dune crest was observed in storms with a peak water level greater than the current 1 in 50 year return level. The simulation of beach evolution during storms provides very useful insights in to the morphodynamic processes, and also, provides information to improve existing coastal management strategies. Conference Paper/Proceeding/Abstract Coastal Dynamics 2017 9 12 6 2017 2017-06-12 COLLEGE NANME Civil Engineering COLLEGE CODE CIVL Swansea University 2022-12-06T12:38:59.2653628 2022-11-24T10:19:25.7937077 Faculty of Science and Engineering School of Aerospace, Civil, Electrical, General and Mechanical Engineering - Civil Engineering William Bennett 0000-0002-7229-5747 1 Harshinie Karunarathna 0000-0002-9087-3811 2 Dominic Reeve 0000-0003-1293-4743 3
title Morphological Impacts due to Storms on a Macro-Tidal Beach
spellingShingle Morphological Impacts due to Storms on a Macro-Tidal Beach
William Bennett
Harshinie Karunarathna
Dominic Reeve
title_short Morphological Impacts due to Storms on a Macro-Tidal Beach
title_full Morphological Impacts due to Storms on a Macro-Tidal Beach
title_fullStr Morphological Impacts due to Storms on a Macro-Tidal Beach
title_full_unstemmed Morphological Impacts due to Storms on a Macro-Tidal Beach
title_sort Morphological Impacts due to Storms on a Macro-Tidal Beach
author_id_str_mv 02f99b24e395a83ca52f7b85b151b29b
0d3d327a240d49b53c78e02b7c00e625
3e76fcc2bb3cde4ddee2c8edfd2f0082
author_id_fullname_str_mv 02f99b24e395a83ca52f7b85b151b29b_***_William Bennett
0d3d327a240d49b53c78e02b7c00e625_***_Harshinie Karunarathna
3e76fcc2bb3cde4ddee2c8edfd2f0082_***_Dominic Reeve
author William Bennett
Harshinie Karunarathna
Dominic Reeve
author2 William Bennett
Harshinie Karunarathna
Dominic Reeve
format Conference Paper/Proceeding/Abstract
container_title Coastal Dynamics 2017
container_issue 9
publishDate 2017
institution Swansea University
college_str Faculty of Science and Engineering
hierarchytype
hierarchy_top_id facultyofscienceandengineering
hierarchy_top_title Faculty of Science and Engineering
hierarchy_parent_id facultyofscienceandengineering
hierarchy_parent_title Faculty of Science and Engineering
department_str School of Aerospace, Civil, Electrical, General and Mechanical Engineering - Civil Engineering{{{_:::_}}}Faculty of Science and Engineering{{{_:::_}}}School of Aerospace, Civil, Electrical, General and Mechanical Engineering - Civil Engineering
document_store_str 0
active_str 0
description A set of storms, with varying intensity and duration, was used to investigate the range of morphological impacts on a macro-tidal beach (Sefton coast, Liverpool Bay, UK), using a nested computational modelling framework. Extreme wave and water level conditions were extracted from modelled and observed data corresponding to a range of return periods, and fitted to a storm profile to provide real time offshore boundary forcing. The peak water level was found to be the main driving force in defining the bed evolution, with the strongest changes along the northern part of the Sefton coast. Breaching of the dune crest was observed in storms with a peak water level greater than the current 1 in 50 year return level. The simulation of beach evolution during storms provides very useful insights in to the morphodynamic processes, and also, provides information to improve existing coastal management strategies.
published_date 2017-06-12T04:21:18Z
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score 11.013731

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