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Coastal flood alleviation through management interventions under changing climate conditions

William Bennett Orcid Logo, Harshinie Karunarathna Orcid Logo

International Journal of Disaster Resilience in the Built Environment, Volume: ahead-of-print, Issue: ahead-of-print

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

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DOI (Published version): 10.1108/ijdrbe-07-2019-0042

Abstract

PurposeCoastal flooding has disastrous consequences on people, infrastructure, properties and the environment. Increasing flood risk as a result of global climate change is a significant concern both within the UK and globally. To counter any potential increase in future flooding, a range of potenti...

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Published in: International Journal of Disaster Resilience in the Built Environment
ISSN: 1759-5908
Published: Emerald 2019
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URI: https://cronfa.swan.ac.uk/Record/cronfa52961
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first_indexed 2019-12-04T19:15:06Z
last_indexed 2020-09-17T03:15:58Z
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spelling 2019-12-04T14:50:04.5248788 v2 52961 2019-12-04 Coastal flood alleviation through management interventions under changing climate conditions 02f99b24e395a83ca52f7b85b151b29b 0000-0002-7229-5747 William Bennett William Bennett true false 0d3d327a240d49b53c78e02b7c00e625 0000-0002-9087-3811 Harshinie Karunarathna Harshinie Karunarathna true false 2019-12-04 CIVL PurposeCoastal flooding has disastrous consequences on people, infrastructure, properties and the environment. Increasing flood risk as a result of global climate change is a significant concern both within the UK and globally. To counter any potential increase in future flooding, a range of potential management options are being considered. This study aims to explore future coastal management practice for flood alleviation, incorporating the influence of climate change.Design/methodology/approachThe Taf estuary in South West Wales, a macro-tidal estuary which has a history of coastal flooding, was chosen as the case study in this paper to investigate the impact of coastal management interventions such as construction of hard defences, managed realignment or altering land use of affiliated ecosystems such as salt marshes on the complex hydrodynamics and hence flooding of the surrounding areas of the estuary. The study was carried out using a numerical hydrodynamic model of the Taf estuary, developed using the process-based Delft3D modelling software.FindingsThe role of the selected management interventions on coastal flooding was investigated using an extreme storm condition, both with and without the impact of future sea level rise. The results highlight the scale of the effect of sea level rise, with the selected management interventions revealing that minimising the increase in flooding in future requires careful consideration of the available options.Originality/valueThis paper explores the highlighted role of coastal management practice in future with the influence of climate change to study how effective alternative methods can be for flood alleviation. Journal Article International Journal of Disaster Resilience in the Built Environment ahead-of-print ahead-of-print Emerald 1759-5908 16 11 2019 2019-11-16 10.1108/ijdrbe-07-2019-0042 COLLEGE NANME Civil Engineering COLLEGE CODE CIVL Swansea University 2019-12-04T14:50:04.5248788 2019-12-04T14:50:04.5248788 William Bennett 0000-0002-7229-5747 1 Harshinie Karunarathna 0000-0002-9087-3811 2 52961__16036__9b22dd09fbc745078a3b74d39670e11c.pdf bennett2019(3).pdf 2019-12-04T15:44:23.0957501 Output 2105645 application/pdf Accepted Manuscript true 2019-12-04T00:00:00.0000000 true
title Coastal flood alleviation through management interventions under changing climate conditions
spellingShingle Coastal flood alleviation through management interventions under changing climate conditions
William Bennett
Harshinie Karunarathna
title_short Coastal flood alleviation through management interventions under changing climate conditions
title_full Coastal flood alleviation through management interventions under changing climate conditions
title_fullStr Coastal flood alleviation through management interventions under changing climate conditions
title_full_unstemmed Coastal flood alleviation through management interventions under changing climate conditions
title_sort Coastal flood alleviation through management interventions under changing climate conditions
author_id_str_mv 02f99b24e395a83ca52f7b85b151b29b
0d3d327a240d49b53c78e02b7c00e625
author_id_fullname_str_mv 02f99b24e395a83ca52f7b85b151b29b_***_William Bennett
0d3d327a240d49b53c78e02b7c00e625_***_Harshinie Karunarathna
author William Bennett
Harshinie Karunarathna
author2 William Bennett
Harshinie Karunarathna
format Journal article
container_title International Journal of Disaster Resilience in the Built Environment
container_volume ahead-of-print
container_issue ahead-of-print
publishDate 2019
institution Swansea University
issn 1759-5908
doi_str_mv 10.1108/ijdrbe-07-2019-0042
publisher Emerald
document_store_str 1
active_str 0
description PurposeCoastal flooding has disastrous consequences on people, infrastructure, properties and the environment. Increasing flood risk as a result of global climate change is a significant concern both within the UK and globally. To counter any potential increase in future flooding, a range of potential management options are being considered. This study aims to explore future coastal management practice for flood alleviation, incorporating the influence of climate change.Design/methodology/approachThe Taf estuary in South West Wales, a macro-tidal estuary which has a history of coastal flooding, was chosen as the case study in this paper to investigate the impact of coastal management interventions such as construction of hard defences, managed realignment or altering land use of affiliated ecosystems such as salt marshes on the complex hydrodynamics and hence flooding of the surrounding areas of the estuary. The study was carried out using a numerical hydrodynamic model of the Taf estuary, developed using the process-based Delft3D modelling software.FindingsThe role of the selected management interventions on coastal flooding was investigated using an extreme storm condition, both with and without the impact of future sea level rise. The results highlight the scale of the effect of sea level rise, with the selected management interventions revealing that minimising the increase in flooding in future requires careful consideration of the available options.Originality/valueThis paper explores the highlighted role of coastal management practice in future with the influence of climate change to study how effective alternative methods can be for flood alleviation.
published_date 2019-11-16T04:05:39Z
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score 11.0299

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