The influence of ocean flow on newly forming sea ice
The heat and mass balance of the Arctic Ocean is very sensitive to the growth and decay of sea ice and the interaction between the heat and salt fields in the oceanic boundary layer. The hydraulic roughness of sea ice controls the detailed nature of turbulent fluxes in the boundary layer and hence i...
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American Geophysical Union
2002
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Online Access: | https://centaur.reading.ac.uk/35294/ https://centaur.reading.ac.uk/35294/1/The%20influence%20of%20ocean.pdf https://doi.org/10.1029/2000JC000559 |
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ftunivreading:oai:centaur.reading.ac.uk:35294 2024-09-15T17:53:51+00:00 The influence of ocean flow on newly forming sea ice Feltham, D. L. Worster,, M. G. Wettlaufer, J. S. 2002 text https://centaur.reading.ac.uk/35294/ https://centaur.reading.ac.uk/35294/1/The%20influence%20of%20ocean.pdf https://doi.org/10.1029/2000JC000559 en eng American Geophysical Union https://centaur.reading.ac.uk/35294/1/The%20influence%20of%20ocean.pdf Feltham, D. L. <https://centaur.reading.ac.uk/view/creators/90004991.html> orcid:0000-0003-2289-014X , Worster,, M. G. and Wettlaufer, J. S. (2002) The influence of ocean flow on newly forming sea ice. Journal of Geophysical Research, 107 (C2). ISSN 0148-0227 doi: https://doi.org/10.1029/2000JC000559 <https://doi.org/10.1029/2000JC000559> Article PeerReviewed 2002 ftunivreading https://doi.org/10.1029/2000JC000559 2024-06-25T14:55:27Z The heat and mass balance of the Arctic Ocean is very sensitive to the growth and decay of sea ice and the interaction between the heat and salt fields in the oceanic boundary layer. The hydraulic roughness of sea ice controls the detailed nature of turbulent fluxes in the boundary layer and hence is an important ingredient in model parameterizations. We describe a novel mechanism for the generation of corrugations of the sea ice–ocean interface, present a mathematical analysis elucidating the mechanism, and present numerical calculations for geophysically relevant conditions. The mechanism relies on brine flows developing in the sea ice due to Bernoulli suction by flow of ocean past the interface. For oceanic shears at the ice interface of 0.2 s−1, we expect the corrugations to form with a wavelength dependent upon the permeability structure of the sea ice which is described herein. The mechanism should be particularly important during sea ice formation in wind-maintained coastal polynyas and in leads. This paper applies our earlier analyses of the fundamental instability to field conditions and extends it to take account of the anisotropic and heterogeneous permeability of sea ice. Article in Journal/Newspaper Arctic Ocean Sea ice CentAUR: Central Archive at the University of Reading Journal of Geophysical Research 107 C2 |
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Open Polar |
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CentAUR: Central Archive at the University of Reading |
op_collection_id |
ftunivreading |
language |
English |
description |
The heat and mass balance of the Arctic Ocean is very sensitive to the growth and decay of sea ice and the interaction between the heat and salt fields in the oceanic boundary layer. The hydraulic roughness of sea ice controls the detailed nature of turbulent fluxes in the boundary layer and hence is an important ingredient in model parameterizations. We describe a novel mechanism for the generation of corrugations of the sea ice–ocean interface, present a mathematical analysis elucidating the mechanism, and present numerical calculations for geophysically relevant conditions. The mechanism relies on brine flows developing in the sea ice due to Bernoulli suction by flow of ocean past the interface. For oceanic shears at the ice interface of 0.2 s−1, we expect the corrugations to form with a wavelength dependent upon the permeability structure of the sea ice which is described herein. The mechanism should be particularly important during sea ice formation in wind-maintained coastal polynyas and in leads. This paper applies our earlier analyses of the fundamental instability to field conditions and extends it to take account of the anisotropic and heterogeneous permeability of sea ice. |
format |
Article in Journal/Newspaper |
author |
Feltham, D. L. Worster,, M. G. Wettlaufer, J. S. |
spellingShingle |
Feltham, D. L. Worster,, M. G. Wettlaufer, J. S. The influence of ocean flow on newly forming sea ice |
author_facet |
Feltham, D. L. Worster,, M. G. Wettlaufer, J. S. |
author_sort |
Feltham, D. L. |
title |
The influence of ocean flow on newly forming sea ice |
title_short |
The influence of ocean flow on newly forming sea ice |
title_full |
The influence of ocean flow on newly forming sea ice |
title_fullStr |
The influence of ocean flow on newly forming sea ice |
title_full_unstemmed |
The influence of ocean flow on newly forming sea ice |
title_sort |
influence of ocean flow on newly forming sea ice |
publisher |
American Geophysical Union |
publishDate |
2002 |
url |
https://centaur.reading.ac.uk/35294/ https://centaur.reading.ac.uk/35294/1/The%20influence%20of%20ocean.pdf https://doi.org/10.1029/2000JC000559 |
genre |
Arctic Ocean Sea ice |
genre_facet |
Arctic Ocean Sea ice |
op_relation |
https://centaur.reading.ac.uk/35294/1/The%20influence%20of%20ocean.pdf Feltham, D. L. <https://centaur.reading.ac.uk/view/creators/90004991.html> orcid:0000-0003-2289-014X , Worster,, M. G. and Wettlaufer, J. S. (2002) The influence of ocean flow on newly forming sea ice. Journal of Geophysical Research, 107 (C2). ISSN 0148-0227 doi: https://doi.org/10.1029/2000JC000559 <https://doi.org/10.1029/2000JC000559> |
op_doi |
https://doi.org/10.1029/2000JC000559 |
container_title |
Journal of Geophysical Research |
container_volume |
107 |
container_issue |
C2 |
_version_ |
1810429956647288832 |