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The relation between longshore variations in grain size distribution and sediment transport processes

Hallin, Caroline LU ; Almström, Björn LU ; Larson, Magnus LU and Hanson, Hans LU (2019) p.1269-1282
Abstract
This study investigates the relationship between grain-size distributions and sediment transport processes at Ängelholm Beach in southwest Sweden. In total, 308 longshore and cross-shore distributed sediment samples are analysed with respect to median grain size and sorting. The longshore sediment transport is almost unidirectional from north to south. Its gradients cause erosion in the north and accretion in the south. The longshore transport sorts the sediment, leading to coarsening in eroding areas and deposition of finer sediment in accreting areas. In the eroding part of the beach, the aeolian transport is limited, and the median grain sizes on the beach are coarser than in the dunes. In the accreting part of the beach, where the... (More)
This study investigates the relationship between grain-size distributions and sediment transport processes at Ängelholm Beach in southwest Sweden. In total, 308 longshore and cross-shore distributed sediment samples are analysed with respect to median grain size and sorting. The longshore sediment transport is almost unidirectional from north to south. Its gradients cause erosion in the north and accretion in the south. The longshore transport sorts the sediment, leading to coarsening in eroding areas and deposition of finer sediment in accreting areas. In the eroding part of the beach, the aeolian transport is limited, and the median grain sizes on the beach are coarser than in the dunes. In the accreting part of the beach, where the dunes are prograding, sediment within the range of dune-building grain-sizes is mostly available at the beach. The results support that sediment supply of appropriate grain sizes is an important factor controlling the long-term dune evolution. (Less)
Please use this url to cite or link to this publication:
author
organization
publishing date
type
Chapter in Book/Report/Conference proceeding
publication status
published
subject
host publication
Coastal Sediments 2019
editor
Wang, Ping; Rosati, Julie D; and
pages
1269 - 1282
publisher
World Scientific
ISBN
9789811204494
DOI
10.1142/9789811204487_0111
language
English
LU publication?
yes
id
89037e06-8a17-4d70-ade1-d86d0b64c8c4
date added to LUP
2019-06-04 13:23:39
date last changed
2019-06-19 11:33:04
@inproceedings{89037e06-8a17-4d70-ade1-d86d0b64c8c4,
  abstract     = {This study investigates the relationship between grain-size distributions and sediment transport processes at Ängelholm Beach in southwest Sweden. In total, 308 longshore and cross-shore distributed sediment samples are analysed with respect to median grain size and sorting. The longshore sediment transport is almost unidirectional from north to south. Its gradients cause erosion in the north and accretion in the south. The longshore transport sorts the sediment, leading to coarsening in eroding areas and deposition of finer sediment in accreting areas. In the eroding part of the beach, the aeolian transport is limited, and the median grain sizes on the beach are coarser than in the dunes. In the accreting part of the beach, where the dunes are prograding, sediment within the range of dune-building grain-sizes is mostly available at the beach. The results support that sediment supply of appropriate grain sizes is an important factor controlling the long-term dune evolution.},
  author       = {Hallin, Caroline and Almström, Björn and Larson, Magnus and Hanson, Hans},
  editor       = {Wang, Ping and Rosati, Julie D},
  isbn         = {9789811204494},
  language     = {eng},
  pages        = {1269--1282},
  publisher    = {World Scientific},
  title        = {The relation between longshore variations in grain size distribution and sediment transport processes},
  url          = {http://dx.doi.org/10.1142/9789811204487_0111},
  year         = {2019},
}