Active microwave measurements of artificial sea ice
A 5 m x 15 m outdoor tank of 1.2 m depth was filled with sea water, and polarimetric radar backscatter data were collected at 1.8, 5, and 10 GHz for incidence angles 0 to 60 deg. Observations commenced with open water and continued until 30 cm of sea ice formed. The roughness of the ice surface is i...
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ftnasantrs:oai:casi.ntrs.nasa.gov:19890009502 2023-05-15T18:17:32+02:00 Active microwave measurements of artificial sea ice Onstott, R. G. Gaboury, S. H. Bredow, J. Gogineni, P. Unclassified, Unlimited, Publicly available Aug 1, 1988 http://ntrs.nasa.gov/search.jsp?R=19890009502 unknown http://ntrs.nasa.gov/search.jsp?R=19890009502 Accession ID: 89N18873 Copyright CASI 43 ESA, Proceedings of the 1988 International Geoscience and Remote Sensing Symposium (IGARSS) '88 on Remote Sensing: Moving Towards the 21st Century, Volume 2; p 805-807 1988 ftnasantrs 2012-02-15T17:48:47Z A 5 m x 15 m outdoor tank of 1.2 m depth was filled with sea water, and polarimetric radar backscatter data were collected at 1.8, 5, and 10 GHz for incidence angles 0 to 60 deg. Observations commenced with open water and continued until 30 cm of sea ice formed. The roughness of the ice surface is important in determining the general backscatter level for first-year ice. Experiments were performed to study the change in backscatter with various roughness scales. Effects of freeze and thaw conditions were also examined. Absolute backscatter levels for new to gray ice are small, except for the large, coherent returns at vertical. The backscatter responses of new, gray, rough grey, and desalinated first-year ice at linear polarization are dissimilar. This is confirmed by examining their polarization signatures. Other/Unknown Material Sea ice NASA Technical Reports Server (NTRS) |
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NASA Technical Reports Server (NTRS) |
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43 Onstott, R. G. Gaboury, S. H. Bredow, J. Gogineni, P. Active microwave measurements of artificial sea ice |
topic_facet |
43 |
description |
A 5 m x 15 m outdoor tank of 1.2 m depth was filled with sea water, and polarimetric radar backscatter data were collected at 1.8, 5, and 10 GHz for incidence angles 0 to 60 deg. Observations commenced with open water and continued until 30 cm of sea ice formed. The roughness of the ice surface is important in determining the general backscatter level for first-year ice. Experiments were performed to study the change in backscatter with various roughness scales. Effects of freeze and thaw conditions were also examined. Absolute backscatter levels for new to gray ice are small, except for the large, coherent returns at vertical. The backscatter responses of new, gray, rough grey, and desalinated first-year ice at linear polarization are dissimilar. This is confirmed by examining their polarization signatures. |
format |
Other/Unknown Material |
author |
Onstott, R. G. Gaboury, S. H. Bredow, J. Gogineni, P. |
author_facet |
Onstott, R. G. Gaboury, S. H. Bredow, J. Gogineni, P. |
author_sort |
Onstott, R. G. |
title |
Active microwave measurements of artificial sea ice |
title_short |
Active microwave measurements of artificial sea ice |
title_full |
Active microwave measurements of artificial sea ice |
title_fullStr |
Active microwave measurements of artificial sea ice |
title_full_unstemmed |
Active microwave measurements of artificial sea ice |
title_sort |
active microwave measurements of artificial sea ice |
publishDate |
1988 |
url |
http://ntrs.nasa.gov/search.jsp?R=19890009502 |
op_coverage |
Unclassified, Unlimited, Publicly available |
genre |
Sea ice |
genre_facet |
Sea ice |
op_source |
CASI |
op_relation |
http://ntrs.nasa.gov/search.jsp?R=19890009502 Accession ID: 89N18873 |
op_rights |
Copyright |
_version_ |
1766191814578012160 |