Mapping of sea ice and measurement of its drift using aircraft synthetic aperture radar images
Side-looking radar images of Arctic sea ice were obtained as part of the Arctic Ice Dynamics Joint Experiment. Repetitive coverages of a test site in the Arctic were used to measure sea ice drift, employing single images and blocks of overlapping radar image strips; the images were used in conjuncti...
Published in: | Journal of Geophysical Research: Oceans |
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Format: | Article in Journal/Newspaper |
Language: | English |
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American Geophysical Union
1979
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Online Access: | https://authors.library.caltech.edu/61809/ https://authors.library.caltech.edu/61809/1/F._et_al-1979-Journal_of_Geophysical_Research__Oceans_%281978-2012%29.pdf https://resolver.caltech.edu/CaltechAUTHORS:20151104-094925827 |
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ftcaltechauth:oai:authors.library.caltech.edu:61809 2023-05-15T14:49:39+02:00 Mapping of sea ice and measurement of its drift using aircraft synthetic aperture radar images Leberl, F. Bryan, M. L. Elachi, C. Farr, T. Campbell, W. 1979-04-20 application/pdf https://authors.library.caltech.edu/61809/ https://authors.library.caltech.edu/61809/1/F._et_al-1979-Journal_of_Geophysical_Research__Oceans_%281978-2012%29.pdf https://resolver.caltech.edu/CaltechAUTHORS:20151104-094925827 en eng American Geophysical Union https://authors.library.caltech.edu/61809/1/F._et_al-1979-Journal_of_Geophysical_Research__Oceans_%281978-2012%29.pdf Leberl, F. and Bryan, M. L. and Elachi, C. and Farr, T. and Campbell, W. (1979) Mapping of sea ice and measurement of its drift using aircraft synthetic aperture radar images. Journal of Geophysical Research C, 84 (C4). pp. 1827-1835. ISSN 0148-0227. doi:10.1029/JC084iC04p01827. https://resolver.caltech.edu/CaltechAUTHORS:20151104-094925827 <https://resolver.caltech.edu/CaltechAUTHORS:20151104-094925827> other Article PeerReviewed 1979 ftcaltechauth https://doi.org/10.1029/JC084iC04p01827 2021-11-11T19:06:41Z Side-looking radar images of Arctic sea ice were obtained as part of the Arctic Ice Dynamics Joint Experiment. Repetitive coverages of a test site in the Arctic were used to measure sea ice drift, employing single images and blocks of overlapping radar image strips; the images were used in conjunction with data from the aircraft inertial navigation and altimeter. Also, independently measured, accurate positions of a number of ground control points were available. Initial tests of the method were carried out with repeated coverages of a land area on the Alaska coast (Prudhoe). Absolute accuracies achieved were essentially limited by the accuracy of the inertial navigation data. Errors of drift measurements were found to be about ±2.5 km. Relative accuracy is higher; its limits are set by the radar image geometry and the definition of identical features in sequential images. The drift of adjacent ice features with respect to one another could be determined with errors of less than ±0.2 km. Article in Journal/Newspaper Arctic Sea ice Alaska Caltech Authors (California Institute of Technology) Arctic Journal of Geophysical Research: Oceans 84 C4 1827 1835 |
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Open Polar |
collection |
Caltech Authors (California Institute of Technology) |
op_collection_id |
ftcaltechauth |
language |
English |
description |
Side-looking radar images of Arctic sea ice were obtained as part of the Arctic Ice Dynamics Joint Experiment. Repetitive coverages of a test site in the Arctic were used to measure sea ice drift, employing single images and blocks of overlapping radar image strips; the images were used in conjunction with data from the aircraft inertial navigation and altimeter. Also, independently measured, accurate positions of a number of ground control points were available. Initial tests of the method were carried out with repeated coverages of a land area on the Alaska coast (Prudhoe). Absolute accuracies achieved were essentially limited by the accuracy of the inertial navigation data. Errors of drift measurements were found to be about ±2.5 km. Relative accuracy is higher; its limits are set by the radar image geometry and the definition of identical features in sequential images. The drift of adjacent ice features with respect to one another could be determined with errors of less than ±0.2 km. |
format |
Article in Journal/Newspaper |
author |
Leberl, F. Bryan, M. L. Elachi, C. Farr, T. Campbell, W. |
spellingShingle |
Leberl, F. Bryan, M. L. Elachi, C. Farr, T. Campbell, W. Mapping of sea ice and measurement of its drift using aircraft synthetic aperture radar images |
author_facet |
Leberl, F. Bryan, M. L. Elachi, C. Farr, T. Campbell, W. |
author_sort |
Leberl, F. |
title |
Mapping of sea ice and measurement of its drift using aircraft synthetic aperture radar images |
title_short |
Mapping of sea ice and measurement of its drift using aircraft synthetic aperture radar images |
title_full |
Mapping of sea ice and measurement of its drift using aircraft synthetic aperture radar images |
title_fullStr |
Mapping of sea ice and measurement of its drift using aircraft synthetic aperture radar images |
title_full_unstemmed |
Mapping of sea ice and measurement of its drift using aircraft synthetic aperture radar images |
title_sort |
mapping of sea ice and measurement of its drift using aircraft synthetic aperture radar images |
publisher |
American Geophysical Union |
publishDate |
1979 |
url |
https://authors.library.caltech.edu/61809/ https://authors.library.caltech.edu/61809/1/F._et_al-1979-Journal_of_Geophysical_Research__Oceans_%281978-2012%29.pdf https://resolver.caltech.edu/CaltechAUTHORS:20151104-094925827 |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic Sea ice Alaska |
genre_facet |
Arctic Sea ice Alaska |
op_relation |
https://authors.library.caltech.edu/61809/1/F._et_al-1979-Journal_of_Geophysical_Research__Oceans_%281978-2012%29.pdf Leberl, F. and Bryan, M. L. and Elachi, C. and Farr, T. and Campbell, W. (1979) Mapping of sea ice and measurement of its drift using aircraft synthetic aperture radar images. Journal of Geophysical Research C, 84 (C4). pp. 1827-1835. ISSN 0148-0227. doi:10.1029/JC084iC04p01827. https://resolver.caltech.edu/CaltechAUTHORS:20151104-094925827 <https://resolver.caltech.edu/CaltechAUTHORS:20151104-094925827> |
op_rights |
other |
op_doi |
https://doi.org/10.1029/JC084iC04p01827 |
container_title |
Journal of Geophysical Research: Oceans |
container_volume |
84 |
container_issue |
C4 |
container_start_page |
1827 |
op_container_end_page |
1835 |
_version_ |
1766320728501649408 |