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Redistribution of sediments in three Swedish lakes

Bengtsson, Lars LU ; Hellström, Thomas and Rakoczi, Laszlo (1990) In Hydrobiologia 192. p.167-181
Abstract
Sedimentation and redistribution of fine sediments in three Swedish lakes of different character have been investigated using settling sediment traps. The bottom shear stress from wind generated waves are calculated and the extension of erodable bottom area is related to wind conditions. Wave induced erosion and deposition during and after cessation of storms in different parts of a lake are discussed theoretically. It is shown that a single one year storm may redistribute more bottom material than the accumulated resuspension caused by frequent but smaller wind events. The settling sediment trap deposition and the concentration of suspended solids are related to the extension of erodable bottom area of particular storms. It is found that... (More)
Sedimentation and redistribution of fine sediments in three Swedish lakes of different character have been investigated using settling sediment traps. The bottom shear stress from wind generated waves are calculated and the extension of erodable bottom area is related to wind conditions. Wave induced erosion and deposition during and after cessation of storms in different parts of a lake are discussed theoretically. It is shown that a single one year storm may redistribute more bottom material than the accumulated resuspension caused by frequent but smaller wind events. The settling sediment trap deposition and the concentration of suspended solids are related to the extension of erodable bottom area of particular storms. It is found that in lakes where there are relatively large areas of erosion bottoms, resuspended material from the part of the lake most susceptible to strong winds of large fetch constitutes a major part of the settled material on deep bottoms. (Less)
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author
; and
alternative title
Redistribution av sediment i tre svenska sjöar
publishing date
type
Contribution to journal
publication status
published
subject
in
Hydrobiologia
volume
192
pages
167 - 181
publisher
Springer
external identifiers
  • scopus:0000864439
ISSN
0018-8158
language
English
LU publication?
no
id
26f72205-e598-4317-bccb-f8588fdbb4d1
date added to LUP
2023-06-16 11:41:57
date last changed
2023-06-20 09:42:58
@article{26f72205-e598-4317-bccb-f8588fdbb4d1,
  abstract     = {{Sedimentation and redistribution of fine sediments in three Swedish lakes of different character have been investigated using settling sediment traps. The bottom shear stress from wind generated waves are calculated and the extension of erodable bottom area is related to wind conditions. Wave induced erosion and deposition during and after cessation of storms in different parts of a lake are discussed theoretically. It is shown that a single one year storm may redistribute more bottom material than the accumulated resuspension caused by frequent but smaller wind events. The settling sediment trap deposition and the concentration of suspended solids are related to the extension of erodable bottom area of particular storms. It is found that in lakes where there are relatively large areas of erosion bottoms, resuspended material from the part of the lake most susceptible to strong winds of large fetch constitutes a major part of the settled material on deep bottoms.}},
  author       = {{Bengtsson, Lars and Hellström, Thomas and Rakoczi, Laszlo}},
  issn         = {{0018-8158}},
  language     = {{eng}},
  pages        = {{167--181}},
  publisher    = {{Springer}},
  series       = {{Hydrobiologia}},
  title        = {{Redistribution of sediments in three Swedish lakes}},
  volume       = {{192}},
  year         = {{1990}},
}