Modelling Changes in Scattering Properties of the Dielectric and Young Snow-Covered Sea Ice at GHz Requencies
Abstract Observations of the physical properties of the snow cover and underlying young fast ice in Resolute Passage, N.W.T., Canada, were made during the winter of 1982. Detailed measurements of snow density, and ice and snow temperatures, salinities, and brine volumes were made over a period of 46...
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Language: | English |
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Cambridge University Press (CUP)
1988
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Online Access: | http://dx.doi.org/10.1017/s0022143000007012 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0022143000007012 |
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crcambridgeupr:10.1017/s0022143000007012 2024-09-09T19:49:02+00:00 Modelling Changes in Scattering Properties of the Dielectric and Young Snow-Covered Sea Ice at GHz Requencies Drinkwater, Mark R. Crocker, G.B. 1988 http://dx.doi.org/10.1017/s0022143000007012 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0022143000007012 en eng Cambridge University Press (CUP) Journal of Glaciology volume 34, issue 118, page 274-282 ISSN 0022-1430 1727-5652 journal-article 1988 crcambridgeupr https://doi.org/10.1017/s0022143000007012 2024-06-19T04:04:42Z Abstract Observations of the physical properties of the snow cover and underlying young fast ice in Resolute Passage, N.W.T., Canada, were made during the winter of 1982. Detailed measurements of snow density, and ice and snow temperatures, salinities, and brine volumes were made over a period of 46 d, beginning when the ice was 0.4 m thick and about 8 d old. The recorded values are used in a theoretical mixture model to predict the dielectric properties of the snow cover over the microwave frequency range. The results of this analysis are then used to investigate the effects of the snow properties on the radar back-scatter signatures of young sea ice. The results show that back-scatter is a function of the incidence angle and can change significantly over short periods of time during the early evolutionary phase of ice and snow-cover development. This has important consequences for the identification of young ice forms from Synthetic Aperture or Side Looking Airborne Radar images. Article in Journal/Newspaper Journal of Glaciology Sea ice Cambridge University Press Canada Resolute Passage ENVELOPE(-95.585,-95.585,74.702,74.702) Journal of Glaciology 34 118 274 282 |
institution |
Open Polar |
collection |
Cambridge University Press |
op_collection_id |
crcambridgeupr |
language |
English |
description |
Abstract Observations of the physical properties of the snow cover and underlying young fast ice in Resolute Passage, N.W.T., Canada, were made during the winter of 1982. Detailed measurements of snow density, and ice and snow temperatures, salinities, and brine volumes were made over a period of 46 d, beginning when the ice was 0.4 m thick and about 8 d old. The recorded values are used in a theoretical mixture model to predict the dielectric properties of the snow cover over the microwave frequency range. The results of this analysis are then used to investigate the effects of the snow properties on the radar back-scatter signatures of young sea ice. The results show that back-scatter is a function of the incidence angle and can change significantly over short periods of time during the early evolutionary phase of ice and snow-cover development. This has important consequences for the identification of young ice forms from Synthetic Aperture or Side Looking Airborne Radar images. |
format |
Article in Journal/Newspaper |
author |
Drinkwater, Mark R. Crocker, G.B. |
spellingShingle |
Drinkwater, Mark R. Crocker, G.B. Modelling Changes in Scattering Properties of the Dielectric and Young Snow-Covered Sea Ice at GHz Requencies |
author_facet |
Drinkwater, Mark R. Crocker, G.B. |
author_sort |
Drinkwater, Mark R. |
title |
Modelling Changes in Scattering Properties of the Dielectric and Young Snow-Covered Sea Ice at GHz Requencies |
title_short |
Modelling Changes in Scattering Properties of the Dielectric and Young Snow-Covered Sea Ice at GHz Requencies |
title_full |
Modelling Changes in Scattering Properties of the Dielectric and Young Snow-Covered Sea Ice at GHz Requencies |
title_fullStr |
Modelling Changes in Scattering Properties of the Dielectric and Young Snow-Covered Sea Ice at GHz Requencies |
title_full_unstemmed |
Modelling Changes in Scattering Properties of the Dielectric and Young Snow-Covered Sea Ice at GHz Requencies |
title_sort |
modelling changes in scattering properties of the dielectric and young snow-covered sea ice at ghz requencies |
publisher |
Cambridge University Press (CUP) |
publishDate |
1988 |
url |
http://dx.doi.org/10.1017/s0022143000007012 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0022143000007012 |
long_lat |
ENVELOPE(-95.585,-95.585,74.702,74.702) |
geographic |
Canada Resolute Passage |
geographic_facet |
Canada Resolute Passage |
genre |
Journal of Glaciology Sea ice |
genre_facet |
Journal of Glaciology Sea ice |
op_source |
Journal of Glaciology volume 34, issue 118, page 274-282 ISSN 0022-1430 1727-5652 |
op_doi |
https://doi.org/10.1017/s0022143000007012 |
container_title |
Journal of Glaciology |
container_volume |
34 |
container_issue |
118 |
container_start_page |
274 |
op_container_end_page |
282 |
_version_ |
1809918418086789120 |