Dierking, Wolfgang und Lang, Oliver und Busche, Thomas (2017) Sea ice local surface topography from single-pass satellite InSAR measurements: a feasibility study. The Cryosphere, 11 (4), Seiten 1967-1985. Copernicus Publications. doi: 10.5194/tc-11-1967-2017. ISSN 1994-0416.
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Offizielle URL: https://www.the-cryosphere.net/11/1967/2017/
Kurzfassung
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.
elib-URL des Eintrags: | https://elib.dlr.de/117310/ | ||||||||||||||||
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Dokumentart: | Zeitschriftenbeitrag | ||||||||||||||||
Titel: | Sea ice local surface topography from single-pass satellite InSAR measurements: a feasibility study | ||||||||||||||||
Autoren: |
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Datum: | 29 August 2017 | ||||||||||||||||
Erschienen in: | The Cryosphere | ||||||||||||||||
Referierte Publikation: | Ja | ||||||||||||||||
Open Access: | Ja | ||||||||||||||||
Gold Open Access: | Ja | ||||||||||||||||
In SCOPUS: | Ja | ||||||||||||||||
In ISI Web of Science: | Ja | ||||||||||||||||
Band: | 11 | ||||||||||||||||
DOI: | 10.5194/tc-11-1967-2017 | ||||||||||||||||
Seitenbereich: | Seiten 1967-1985 | ||||||||||||||||
Verlag: | Copernicus Publications | ||||||||||||||||
Name der Reihe: | EGU Journals | ||||||||||||||||
ISSN: | 1994-0416 | ||||||||||||||||
Status: | veröffentlicht | ||||||||||||||||
Stichwörter: | Seac ice, InSAR, sea ice topography | ||||||||||||||||
HGF - Forschungsbereich: | Luftfahrt, Raumfahrt und Verkehr | ||||||||||||||||
HGF - Programm: | Raumfahrt | ||||||||||||||||
HGF - Programmthema: | Erdbeobachtung | ||||||||||||||||
DLR - Schwerpunkt: | Raumfahrt | ||||||||||||||||
DLR - Forschungsgebiet: | R EO - Erdbeobachtung | ||||||||||||||||
DLR - Teilgebiet (Projekt, Vorhaben): | R - Projekt TanDEM-X (alt) | ||||||||||||||||
Standort: | Oberpfaffenhofen | ||||||||||||||||
Institute & Einrichtungen: | Institut für Hochfrequenztechnik und Radarsysteme > Radarkonzepte | ||||||||||||||||
Hinterlegt von: | Busche, Thomas Edmund | ||||||||||||||||
Hinterlegt am: | 13 Dez 2017 17:17 | ||||||||||||||||
Letzte Änderung: | 09 Jan 2019 12:23 |
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