Sea ice local surface topography from single-pass satellite InSAR measurements: a feasibility study
Quantitative parameters characterizing the sea ice surface topography are needed in geophysical investigations such as studies on atmosphere–ice interactions or sea ice mechanics. Recently, the use of space-borne single-pass interferometric synthetic aperture radar (InSAR) for retrieving the ice sur...
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ftnonlinearchiv:oai:noa.gwlb.de:cop_mods_00009124 2023-05-15T18:17:05+02:00 Sea ice local surface topography from single-pass satellite InSAR measurements: a feasibility study Dierking, Wolfgang Lang, Oliver Busche, Thomas 2017-08 electronic https://doi.org/10.5194/tc-11-1967-2017 https://noa.gwlb.de/receive/cop_mods_00009124 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00009081/tc-11-1967-2017.pdf https://tc.copernicus.org/articles/11/1967/2017/tc-11-1967-2017.pdf eng eng Copernicus Publications The Cryosphere -- ˜Theœ Cryosphere -- http://www.bibliothek.uni-regensburg.de/ezeit/?2393169 -- http://www.the-cryosphere.net/ -- 1994-0424 https://doi.org/10.5194/tc-11-1967-2017 https://noa.gwlb.de/receive/cop_mods_00009124 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00009081/tc-11-1967-2017.pdf https://tc.copernicus.org/articles/11/1967/2017/tc-11-1967-2017.pdf uneingeschränkt info:eu-repo/semantics/openAccess article Verlagsveröffentlichung article Text doc-type:article 2017 ftnonlinearchiv https://doi.org/10.5194/tc-11-1967-2017 2022-02-08T22:57:42Z Quantitative parameters characterizing the sea ice surface topography are needed in geophysical investigations such as studies on atmosphere–ice interactions or sea ice mechanics. Recently, the use of space-borne single-pass interferometric synthetic aperture radar (InSAR) for retrieving the ice surface topography has attracted notice among geophysicists. In this paper the potential of InSAR measurements is examined for several satellite configurations and radar frequencies, considering statistics of heights and widths of ice ridges as well as possible magnitudes of ice drift. It is shown that, theoretically, surface height variations can be retrieved with relative errors ≤ 0.5 m. In practice, however, the sea ice drift and open water leads may contribute significantly to the measured interferometric phase. Another essential factor is the dependence of the achievable interferometric baseline on the satellite orbit configurations. Possibilities to assess the influence of different factors on the measurement accuracy are demonstrated: signal-to-noise ratio, presence of a snow layer, and the penetration depth into the ice. Practical examples of sea surface height retrievals from bistatic SAR images collected during the TanDEM-X Science Phase are presented. Article in Journal/Newspaper Sea ice The Cryosphere Niedersächsisches Online-Archiv NOA The Cryosphere 11 4 1967 1985 |
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article Verlagsveröffentlichung |
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article Verlagsveröffentlichung Dierking, Wolfgang Lang, Oliver Busche, Thomas Sea ice local surface topography from single-pass satellite InSAR measurements: a feasibility study |
topic_facet |
article Verlagsveröffentlichung |
description |
Quantitative parameters characterizing the sea ice surface topography are needed in geophysical investigations such as studies on atmosphere–ice interactions or sea ice mechanics. Recently, the use of space-borne single-pass interferometric synthetic aperture radar (InSAR) for retrieving the ice surface topography has attracted notice among geophysicists. In this paper the potential of InSAR measurements is examined for several satellite configurations and radar frequencies, considering statistics of heights and widths of ice ridges as well as possible magnitudes of ice drift. It is shown that, theoretically, surface height variations can be retrieved with relative errors ≤ 0.5 m. In practice, however, the sea ice drift and open water leads may contribute significantly to the measured interferometric phase. Another essential factor is the dependence of the achievable interferometric baseline on the satellite orbit configurations. Possibilities to assess the influence of different factors on the measurement accuracy are demonstrated: signal-to-noise ratio, presence of a snow layer, and the penetration depth into the ice. Practical examples of sea surface height retrievals from bistatic SAR images collected during the TanDEM-X Science Phase are presented. |
format |
Article in Journal/Newspaper |
author |
Dierking, Wolfgang Lang, Oliver Busche, Thomas |
author_facet |
Dierking, Wolfgang Lang, Oliver Busche, Thomas |
author_sort |
Dierking, Wolfgang |
title |
Sea ice local surface topography from single-pass satellite InSAR measurements: a feasibility study |
title_short |
Sea ice local surface topography from single-pass satellite InSAR measurements: a feasibility study |
title_full |
Sea ice local surface topography from single-pass satellite InSAR measurements: a feasibility study |
title_fullStr |
Sea ice local surface topography from single-pass satellite InSAR measurements: a feasibility study |
title_full_unstemmed |
Sea ice local surface topography from single-pass satellite InSAR measurements: a feasibility study |
title_sort |
sea ice local surface topography from single-pass satellite insar measurements: a feasibility study |
publisher |
Copernicus Publications |
publishDate |
2017 |
url |
https://doi.org/10.5194/tc-11-1967-2017 https://noa.gwlb.de/receive/cop_mods_00009124 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00009081/tc-11-1967-2017.pdf https://tc.copernicus.org/articles/11/1967/2017/tc-11-1967-2017.pdf |
genre |
Sea ice The Cryosphere |
genre_facet |
Sea ice The Cryosphere |
op_relation |
The Cryosphere -- ˜Theœ Cryosphere -- http://www.bibliothek.uni-regensburg.de/ezeit/?2393169 -- http://www.the-cryosphere.net/ -- 1994-0424 https://doi.org/10.5194/tc-11-1967-2017 https://noa.gwlb.de/receive/cop_mods_00009124 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00009081/tc-11-1967-2017.pdf https://tc.copernicus.org/articles/11/1967/2017/tc-11-1967-2017.pdf |
op_rights |
uneingeschränkt info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.5194/tc-11-1967-2017 |
container_title |
The Cryosphere |
container_volume |
11 |
container_issue |
4 |
container_start_page |
1967 |
op_container_end_page |
1985 |
_version_ |
1766191111517241344 |