Pancake Ice Thickness Mapping in the Beaufort Sea From Wave Dispersion Observed in SAR Imagery
The early autumn voyage of RV Sikuliaq to the southern Beaufort Sea in 2015 offered very favorable opportunities for observing the properties and thicknesses of frazil-pancake ice types. The operational region was overlaid by a dense network of retrieved satellite imagery, including synthetic apertu...
Published in: | Journal of Geophysical Research: Oceans |
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Online Access: | http://hdl.handle.net/11566/265293 https://doi.org/10.1002/2017JC013003 http://onlinelibrary.wiley.com/journal/10.1002/(ISSN)2169-9291 |
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ftupmarcheiris:oai:iris.univpm.it:11566/265293 2024-04-14T08:09:41+00:00 Pancake Ice Thickness Mapping in the Beaufort Sea From Wave Dispersion Observed in SAR Imagery Wadhams, P. AULICINO, Giuseppe Parmiggiani, F. Persson, P. O. G. Holt, B. Wadhams, P. Aulicino, Giuseppe Parmiggiani, F. Persson, P. O. G. Holt, B. 2018 http://hdl.handle.net/11566/265293 https://doi.org/10.1002/2017JC013003 http://onlinelibrary.wiley.com/journal/10.1002/(ISSN)2169-9291 eng eng info:eu-repo/semantics/altIdentifier/wos/WOS:000430918500036 volume:123 issue:3 firstpage:2213 lastpage:2237 numberofpages:25 journal:JOURNAL OF GEOPHYSICAL RESEARCH. OCEANS http://hdl.handle.net/11566/265293 doi:10.1002/2017JC013003 info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-85043386954 http://onlinelibrary.wiley.com/journal/10.1002/(ISSN)2169-9291 Beaufort Sea COSMO-SkyMed pancake ice SAR imagery wave dispersion in sea ice Geophysic Forestry Oceanography Aquatic Science Ecology Water Science and Technology Soil Science Earth-Surface Processe Atmospheric Science Earth and Planetary Sciences (miscellaneous) Space and Planetary Science info:eu-repo/semantics/article 2018 ftupmarcheiris https://doi.org/10.1002/2017JC013003 2024-03-21T18:22:26Z The early autumn voyage of RV Sikuliaq to the southern Beaufort Sea in 2015 offered very favorable opportunities for observing the properties and thicknesses of frazil-pancake ice types. The operational region was overlaid by a dense network of retrieved satellite imagery, including synthetic aperture radar (SAR) imagery from Sentinel-1 and COSMO-SkyMed (CSK). This enabled us to fully test and apply the SAR-waves technique, first developed by Wadhams and Holt (1991), for deriving the thickness of frazil-pancake icefields from changed wave dispersion. A line of subimages from a main SAR image (usually CSK) is analyzed running into the ice along the main wave direction. Each subimage is spectrally analyzed to yield a wave number spectrum, and the change in the shape of the spectrum between open water and ice, or between two thicknesses of ice, is interpreted in terms of the viscous equations governing wave propagation in frazil-pancake ice. For each of the case studies considered here, there was good or acceptable agreement on thickness between the extensive in situ observations and the SAR-wave calculation. In addition, the SAR-wave analysis gave, parametrically, effective viscosities for the ice covering a consistent and narrow range of 0.03–0.05 m2 s21. Article in Journal/Newspaper Beaufort Sea Sea ice Università Politecnica delle Marche: IRIS Pancake ENVELOPE(-55.815,-55.815,52.600,52.600) Journal of Geophysical Research: Oceans 123 3 2213 2237 |
institution |
Open Polar |
collection |
Università Politecnica delle Marche: IRIS |
op_collection_id |
ftupmarcheiris |
language |
English |
topic |
Beaufort Sea COSMO-SkyMed pancake ice SAR imagery wave dispersion in sea ice Geophysic Forestry Oceanography Aquatic Science Ecology Water Science and Technology Soil Science Earth-Surface Processe Atmospheric Science Earth and Planetary Sciences (miscellaneous) Space and Planetary Science |
spellingShingle |
Beaufort Sea COSMO-SkyMed pancake ice SAR imagery wave dispersion in sea ice Geophysic Forestry Oceanography Aquatic Science Ecology Water Science and Technology Soil Science Earth-Surface Processe Atmospheric Science Earth and Planetary Sciences (miscellaneous) Space and Planetary Science Wadhams, P. AULICINO, Giuseppe Parmiggiani, F. Persson, P. O. G. Holt, B. Pancake Ice Thickness Mapping in the Beaufort Sea From Wave Dispersion Observed in SAR Imagery |
topic_facet |
Beaufort Sea COSMO-SkyMed pancake ice SAR imagery wave dispersion in sea ice Geophysic Forestry Oceanography Aquatic Science Ecology Water Science and Technology Soil Science Earth-Surface Processe Atmospheric Science Earth and Planetary Sciences (miscellaneous) Space and Planetary Science |
description |
The early autumn voyage of RV Sikuliaq to the southern Beaufort Sea in 2015 offered very favorable opportunities for observing the properties and thicknesses of frazil-pancake ice types. The operational region was overlaid by a dense network of retrieved satellite imagery, including synthetic aperture radar (SAR) imagery from Sentinel-1 and COSMO-SkyMed (CSK). This enabled us to fully test and apply the SAR-waves technique, first developed by Wadhams and Holt (1991), for deriving the thickness of frazil-pancake icefields from changed wave dispersion. A line of subimages from a main SAR image (usually CSK) is analyzed running into the ice along the main wave direction. Each subimage is spectrally analyzed to yield a wave number spectrum, and the change in the shape of the spectrum between open water and ice, or between two thicknesses of ice, is interpreted in terms of the viscous equations governing wave propagation in frazil-pancake ice. For each of the case studies considered here, there was good or acceptable agreement on thickness between the extensive in situ observations and the SAR-wave calculation. In addition, the SAR-wave analysis gave, parametrically, effective viscosities for the ice covering a consistent and narrow range of 0.03–0.05 m2 s21. |
author2 |
Wadhams, P. Aulicino, Giuseppe Parmiggiani, F. Persson, P. O. G. Holt, B. |
format |
Article in Journal/Newspaper |
author |
Wadhams, P. AULICINO, Giuseppe Parmiggiani, F. Persson, P. O. G. Holt, B. |
author_facet |
Wadhams, P. AULICINO, Giuseppe Parmiggiani, F. Persson, P. O. G. Holt, B. |
author_sort |
Wadhams, P. |
title |
Pancake Ice Thickness Mapping in the Beaufort Sea From Wave Dispersion Observed in SAR Imagery |
title_short |
Pancake Ice Thickness Mapping in the Beaufort Sea From Wave Dispersion Observed in SAR Imagery |
title_full |
Pancake Ice Thickness Mapping in the Beaufort Sea From Wave Dispersion Observed in SAR Imagery |
title_fullStr |
Pancake Ice Thickness Mapping in the Beaufort Sea From Wave Dispersion Observed in SAR Imagery |
title_full_unstemmed |
Pancake Ice Thickness Mapping in the Beaufort Sea From Wave Dispersion Observed in SAR Imagery |
title_sort |
pancake ice thickness mapping in the beaufort sea from wave dispersion observed in sar imagery |
publishDate |
2018 |
url |
http://hdl.handle.net/11566/265293 https://doi.org/10.1002/2017JC013003 http://onlinelibrary.wiley.com/journal/10.1002/(ISSN)2169-9291 |
long_lat |
ENVELOPE(-55.815,-55.815,52.600,52.600) |
geographic |
Pancake |
geographic_facet |
Pancake |
genre |
Beaufort Sea Sea ice |
genre_facet |
Beaufort Sea Sea ice |
op_relation |
info:eu-repo/semantics/altIdentifier/wos/WOS:000430918500036 volume:123 issue:3 firstpage:2213 lastpage:2237 numberofpages:25 journal:JOURNAL OF GEOPHYSICAL RESEARCH. OCEANS http://hdl.handle.net/11566/265293 doi:10.1002/2017JC013003 info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-85043386954 http://onlinelibrary.wiley.com/journal/10.1002/(ISSN)2169-9291 |
op_doi |
https://doi.org/10.1002/2017JC013003 |
container_title |
Journal of Geophysical Research: Oceans |
container_volume |
123 |
container_issue |
3 |
container_start_page |
2213 |
op_container_end_page |
2237 |
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1796307174530482176 |