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Bottom buoyancy layer in an ice‐covered lake

Malm, Joakim LU (1998) In Water Resources Research 34(11). p.2981-2993
Abstract
Field data on temperature and salt content structure in the vicinity of the bottom boundary in an ice‐covered lake are analyzed. A bottom boundary layer is identified, characterized by rapid increases in both temperature and salt concentration and having a thickness of ∼1 dm with respect to temperature and 2–4 cm with respect to salt content. A simple analytical model of the temperature distribution in the near‐bottom layer and the associated downslope flow of the heavier water is proposed. The model describes satisfactorily the temperature field in the near bottom layer. The corresponding modeled advective velocities are near 1 mm s−1 in early winter and 1 order of magnitude lower in late winter, the latter values agreeing well with... (More)
Field data on temperature and salt content structure in the vicinity of the bottom boundary in an ice‐covered lake are analyzed. A bottom boundary layer is identified, characterized by rapid increases in both temperature and salt concentration and having a thickness of ∼1 dm with respect to temperature and 2–4 cm with respect to salt content. A simple analytical model of the temperature distribution in the near‐bottom layer and the associated downslope flow of the heavier water is proposed. The model describes satisfactorily the temperature field in the near bottom layer. The corresponding modeled advective velocities are near 1 mm s−1 in early winter and 1 order of magnitude lower in late winter, the latter values agreeing well with observations in other lakes. (Less)
Please use this url to cite or link to this publication:
author
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Water Resources Research
volume
34
issue
11
pages
2981 - 2993
publisher
American Geophysical Union (AGU)
external identifiers
  • scopus:0031761271
ISSN
0043-1397
DOI
10.1029/98WR01904
language
English
LU publication?
yes
id
ea31a9d0-f488-4a7f-8c90-95c75f4744af
date added to LUP
2019-10-26 01:39:58
date last changed
2022-02-01 01:33:57
@article{ea31a9d0-f488-4a7f-8c90-95c75f4744af,
  abstract     = {{Field data on temperature and salt content structure in the vicinity of the bottom boundary in an ice‐covered lake are analyzed. A bottom boundary layer is identified, characterized by rapid increases in both temperature and salt concentration and having a thickness of ∼1 dm with respect to temperature and 2–4 cm with respect to salt content. A simple analytical model of the temperature distribution in the near‐bottom layer and the associated downslope flow of the heavier water is proposed. The model describes satisfactorily the temperature field in the near bottom layer. The corresponding modeled advective velocities are near 1 mm s−1 in early winter and 1 order of magnitude lower in late winter, the latter values agreeing well with observations in other lakes.}},
  author       = {{Malm, Joakim}},
  issn         = {{0043-1397}},
  language     = {{eng}},
  number       = {{11}},
  pages        = {{2981--2993}},
  publisher    = {{American Geophysical Union (AGU)}},
  series       = {{Water Resources Research}},
  title        = {{Bottom buoyancy layer in an ice‐covered lake}},
  url          = {{http://dx.doi.org/10.1029/98WR01904}},
  doi          = {{10.1029/98WR01904}},
  volume       = {{34}},
  year         = {{1998}},
}