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A new perspective on meso-scale shoreline dynamics through data-driven analysis

Dominic Reeve Orcid Logo, J. Horrillo-Caraballo, Harshinie Karunarathna Orcid Logo, S. Pan

Geomorphology, Volume: 341, Pages: 169 - 191

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

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Abstract

The twin ambits of climate change and coastal development have raised public awareness of shoreline management. Simultaneously, they have highlighted a gap in our understanding of sediment transport and morphodynamic processes at time and space scales appropriate for shoreline management purposes. H...

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Published in: Geomorphology
ISSN: 0169-555X
Published: 2019
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URI: https://cronfa.swan.ac.uk/Record/cronfa50674
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spelling 2021-01-15T10:23:25.5273564 v2 50674 2019-06-06 A new perspective on meso-scale shoreline dynamics through data-driven analysis 3e76fcc2bb3cde4ddee2c8edfd2f0082 0000-0003-1293-4743 Dominic Reeve Dominic Reeve true false 0d3d327a240d49b53c78e02b7c00e625 0000-0002-9087-3811 Harshinie Karunarathna Harshinie Karunarathna true false 2019-06-06 CIVL The twin ambits of climate change and coastal development have raised public awareness of shoreline management. Simultaneously, they have highlighted a gap in our understanding of sediment transport and morphodynamic processes at time and space scales appropriate for shoreline management purposes. Here, we analyse an exceptional set of beach surveys gathered over a period of twenty-two years along the Suffolk coast, eastern UK, that extends over approximately 80 km to investigate the meso-scale shoreline variations. The surveys have been made biannually along fixed transects spaced at approximately 1 km intervals as part of a strategic monitoring exercise undertaken by the coastal authorities to assist in shoreline management planning. Changes in beach volume, foreshore slope and shoreline position have been computed to investigate both spatial and temporal changes. The analysis reveals some distinct responses to the physical processes of tides and waves, anthropogenic interventions and geological controls. Neither a clear relationship between the presence of sea defences and beach response nor an ordered regional-scale shoreline movement are evident. Temporal variations in beach volumes and position provide a similarly complex picture with recessionary, accretionary and stable behaviour all apparent within the study site. There is evidence of quasi-cyclic behaviour at some locations as well as a reduction in variability over time-scales beyond approximately five years. Journal Article Geomorphology 341 169 191 0169-555X Meso-scale, Beach morphology, Foreshore change classification, Data driven analysis 1 9 2019 2019-09-01 10.1016/j.geomorph.2019.04.033 COLLEGE NANME Civil Engineering COLLEGE CODE CIVL Swansea University NE/J005541/1, EP/N007379/1 EP/N007484/1, NE/J005541/1 2021-01-15T10:23:25.5273564 2019-06-06T10:19:11.9879419 Faculty of Science and Engineering School of Aerospace, Civil, Electrical, General and Mechanical Engineering - Civil Engineering Dominic Reeve 0000-0003-1293-4743 1 J. Horrillo-Caraballo 2 Harshinie Karunarathna 0000-0002-9087-3811 3 S. Pan 4 0050674-20062019102826.pdf 50674.pdf 2019-06-20T10:28:26.7530000 Output 5923057 application/pdf Version of Record true 2019-06-19T00:00:00.0000000 Released under the terms of a Creative Commons Attribution License (CC-BY). true eng https://creativecommons.org/licenses/by/4.0/
title A new perspective on meso-scale shoreline dynamics through data-driven analysis
spellingShingle A new perspective on meso-scale shoreline dynamics through data-driven analysis
Dominic Reeve
Harshinie Karunarathna
title_short A new perspective on meso-scale shoreline dynamics through data-driven analysis
title_full A new perspective on meso-scale shoreline dynamics through data-driven analysis
title_fullStr A new perspective on meso-scale shoreline dynamics through data-driven analysis
title_full_unstemmed A new perspective on meso-scale shoreline dynamics through data-driven analysis
title_sort A new perspective on meso-scale shoreline dynamics through data-driven analysis
author_id_str_mv 3e76fcc2bb3cde4ddee2c8edfd2f0082
0d3d327a240d49b53c78e02b7c00e625
author_id_fullname_str_mv 3e76fcc2bb3cde4ddee2c8edfd2f0082_***_Dominic Reeve
0d3d327a240d49b53c78e02b7c00e625_***_Harshinie Karunarathna
author Dominic Reeve
Harshinie Karunarathna
author2 Dominic Reeve
J. Horrillo-Caraballo
Harshinie Karunarathna
S. Pan
format Journal article
container_title Geomorphology
container_volume 341
container_start_page 169
publishDate 2019
institution Swansea University
issn 0169-555X
doi_str_mv 10.1016/j.geomorph.2019.04.033
college_str Faculty of Science and Engineering
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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
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description The twin ambits of climate change and coastal development have raised public awareness of shoreline management. Simultaneously, they have highlighted a gap in our understanding of sediment transport and morphodynamic processes at time and space scales appropriate for shoreline management purposes. Here, we analyse an exceptional set of beach surveys gathered over a period of twenty-two years along the Suffolk coast, eastern UK, that extends over approximately 80 km to investigate the meso-scale shoreline variations. The surveys have been made biannually along fixed transects spaced at approximately 1 km intervals as part of a strategic monitoring exercise undertaken by the coastal authorities to assist in shoreline management planning. Changes in beach volume, foreshore slope and shoreline position have been computed to investigate both spatial and temporal changes. The analysis reveals some distinct responses to the physical processes of tides and waves, anthropogenic interventions and geological controls. Neither a clear relationship between the presence of sea defences and beach response nor an ordered regional-scale shoreline movement are evident. Temporal variations in beach volumes and position provide a similarly complex picture with recessionary, accretionary and stable behaviour all apparent within the study site. There is evidence of quasi-cyclic behaviour at some locations as well as a reduction in variability over time-scales beyond approximately five years.
published_date 2019-09-01T03:58:45Z
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