Passive microwave remote sensing of seasonal snow-covered sea ice
The Arctic is thought to be an area where we can expect to see the first and strongest signs of global-scale climate variability and change. We have already begun to see a reduction in: (1) the aerial extent of sea ice at about 3% per decade and (2) ice thickness at about 40%. At the current rate of...
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crsagepubl:10.1177/0309133307087082 2024-09-09T19:20:42+00:00 Passive microwave remote sensing of seasonal snow-covered sea ice Langlois, Alexandre Barber, David G. 2007 http://dx.doi.org/10.1177/0309133307087082 http://journals.sagepub.com/doi/pdf/10.1177/0309133307087082 en eng SAGE Publications http://journals.sagepub.com/page/policies/text-and-data-mining-license Progress in Physical Geography: Earth and Environment volume 31, issue 6, page 539-573 ISSN 0309-1333 1477-0296 journal-article 2007 crsagepubl https://doi.org/10.1177/0309133307087082 2024-08-27T04:23:26Z The Arctic is thought to be an area where we can expect to see the first and strongest signs of global-scale climate variability and change. We have already begun to see a reduction in: (1) the aerial extent of sea ice at about 3% per decade and (2) ice thickness at about 40%. At the current rate of reduction we can expect a seasonally ice-free Arctic by midway through this century given the current changes in thermodynamic processes controlling sea-ice freeze-up and decay. Many of the factors governing the thermodynamic processes of sea ice are strongly tied to the presence and geophysical state of snow on sea ice, yet snow on sea ice remains poorly studied. In this review, we provide a summary of the current state of knowledge pertaining to the geophysical, thermodynamic and dielectric properties of snow on sea ice. We first give a detailed description of snow thermophysical properties such as thermal conductivity, diffusivity and specific heat and how snow geophysical/electrical properties and the seasonal surface energy balance affect them. We also review the different microwave emission and scattering mechanisms associated with snow-covered first-year sea ice. Finally, we discuss the annual evolution of the Arctic system through snow thermodynamic (heat/mass transfer, metamorphism) and aeolian processes, with linkages to microwave remote sensing that have yet to be defined from an annual perspective in the Arctic. Article in Journal/Newspaper Arctic Sea ice SAGE Publications Arctic Progress in Physical Geography: Earth and Environment 31 6 539 573 |
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Open Polar |
collection |
SAGE Publications |
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crsagepubl |
language |
English |
description |
The Arctic is thought to be an area where we can expect to see the first and strongest signs of global-scale climate variability and change. We have already begun to see a reduction in: (1) the aerial extent of sea ice at about 3% per decade and (2) ice thickness at about 40%. At the current rate of reduction we can expect a seasonally ice-free Arctic by midway through this century given the current changes in thermodynamic processes controlling sea-ice freeze-up and decay. Many of the factors governing the thermodynamic processes of sea ice are strongly tied to the presence and geophysical state of snow on sea ice, yet snow on sea ice remains poorly studied. In this review, we provide a summary of the current state of knowledge pertaining to the geophysical, thermodynamic and dielectric properties of snow on sea ice. We first give a detailed description of snow thermophysical properties such as thermal conductivity, diffusivity and specific heat and how snow geophysical/electrical properties and the seasonal surface energy balance affect them. We also review the different microwave emission and scattering mechanisms associated with snow-covered first-year sea ice. Finally, we discuss the annual evolution of the Arctic system through snow thermodynamic (heat/mass transfer, metamorphism) and aeolian processes, with linkages to microwave remote sensing that have yet to be defined from an annual perspective in the Arctic. |
format |
Article in Journal/Newspaper |
author |
Langlois, Alexandre Barber, David G. |
spellingShingle |
Langlois, Alexandre Barber, David G. Passive microwave remote sensing of seasonal snow-covered sea ice |
author_facet |
Langlois, Alexandre Barber, David G. |
author_sort |
Langlois, Alexandre |
title |
Passive microwave remote sensing of seasonal snow-covered sea ice |
title_short |
Passive microwave remote sensing of seasonal snow-covered sea ice |
title_full |
Passive microwave remote sensing of seasonal snow-covered sea ice |
title_fullStr |
Passive microwave remote sensing of seasonal snow-covered sea ice |
title_full_unstemmed |
Passive microwave remote sensing of seasonal snow-covered sea ice |
title_sort |
passive microwave remote sensing of seasonal snow-covered sea ice |
publisher |
SAGE Publications |
publishDate |
2007 |
url |
http://dx.doi.org/10.1177/0309133307087082 http://journals.sagepub.com/doi/pdf/10.1177/0309133307087082 |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic Sea ice |
genre_facet |
Arctic Sea ice |
op_source |
Progress in Physical Geography: Earth and Environment volume 31, issue 6, page 539-573 ISSN 0309-1333 1477-0296 |
op_rights |
http://journals.sagepub.com/page/policies/text-and-data-mining-license |
op_doi |
https://doi.org/10.1177/0309133307087082 |
container_title |
Progress in Physical Geography: Earth and Environment |
container_volume |
31 |
container_issue |
6 |
container_start_page |
539 |
op_container_end_page |
573 |
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1809760866195734528 |