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Ocean Surface Observations Using the TanDEM-X Satellite Formation

Suchandt, Steffen and Runge, Hartmut (2015) Ocean Surface Observations Using the TanDEM-X Satellite Formation. IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 8 (11), pp. 5096-5105. IEEE - Institute of Electrical and Electronics Engineers. doi: 10.1109/JSTARS.2015.2446893. ISBN 1939-1404. ISSN 1939-1404.

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Official URL: http://ieeexplore.ieee.org/stamp/stamp.jsp?arnumber=7210126


The TanDEM-X SAR satellite formation permits improved ocean surface observations by means of bistatic along-track interferometry (ATI) when compared to single-satellite systems. The flexible imaging geometry of its two cooperating SAR sensors forms an interferometer that can achieve very high sensitivity to motions of objects on ground. This way, radar imaging of surface currents with unprecedented accuracy, high spatial resolution and wide coverage at the same time becomes possible. We demonstrate the capabilities of the sensor in the contexts of tidal current mapping, measurement of thermohaline and wind-driven ocean currents as well as detection of areas with surface films. We have developed a dedicated postprocessing system for TanDEM-X image products that allows extracting surface current information from the data. By this paper, we address bistatic data acquisition and processing aspects for sea surface imaging with TanDEM-X like interferometric baseline geometry, temporal decorrelation, and phase calibration. We present a variety of examples of data evaluation that clearly demonstrate the application potential of the methodology.

Item URL in elib:https://elib.dlr.de/100062/
Document Type:Article
Title:Ocean Surface Observations Using the TanDEM-X Satellite Formation
AuthorsInstitution or Email of AuthorsAuthor's ORCID iD
Suchandt, Steffensteffen.suchandt (at) dlr.deUNSPECIFIED
Journal or Publication Title:IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing
Refereed publication:Yes
Open Access:Yes
Gold Open Access:No
In ISI Web of Science:Yes
DOI :10.1109/JSTARS.2015.2446893
Page Range:pp. 5096-5105
EditorsEmailEditor's ORCID iD
Chanussot, Jocelynjocelyn.chanussot@gipsa-lab.grenoble-inp.frUNSPECIFIED
Publisher:IEEE - Institute of Electrical and Electronics Engineers
Keywords:Ocean surface currents, SAR along-track interferometry (ATI), TanDEM-X
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Space
HGF - Program Themes:Earth Observation
DLR - Research area:Raumfahrt
DLR - Program:R EO - Earth Observation
DLR - Research theme (Project):R - Projekt TanDEM-X (old)
Location: Oberpfaffenhofen
Institutes and Institutions:Remote Sensing Technology Institute > SAR Signal Processing
Deposited By: Suchandt, Steffen
Deposited On:27 Nov 2015 12:26
Last Modified:19 Nov 2021 20:28

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