Mapping of tidal currents with SAR along track interferometry

Runge, Hartmut; Suchandt, Steffen; Breit, Helko; Eineder, Michael; Schulz‐Stellenfleth, Johannes; Bard, Jochen; Romeiser, Roland

doi:10.1109/igarss.2004.1368619

Cited by 7 publications

(4 citation statements)

References 3 publications

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“…One ingenious application took advantage of the fact that the SRTM outboard antennas were positioned with a slight along‐track baseline (approximately 7 m), making the interferometer sensitive to surface motion in the range of 0.1 m/s. Romeiser et al [2002] and Runge et al [2004] exploited this to make measurements of ocean currents using the X radar system. Other applications have been reported in many conferences and open literature papers.…”

Section: Examples Of Applicationsmentioning

confidence: 99%

The Shuttle Radar Topography Mission

Farr

Rosen

Caro

et al. 2007

Reviews of Geophysics

6,141

3,779

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The Shuttle Radar Topography Mission produced the most complete, highest‐resolution digital elevation model of the Earth. The project was a joint endeavor of NASA, the National Geospatial‐Intelligence Agency, and the German and Italian Space Agencies and flew in February 2000. It used dual radar antennas to acquire interferometric radar data, processed to digital topographic data at 1 arc sec resolution. Details of the development, flight operations, data processing, and products are provided for users of this revolutionary data set.

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Section: Examples Of Applicationsmentioning

confidence: 99%

The Shuttle Radar Topography Mission

Farr

Rosen

Caro

et al. 2007

Reviews of Geophysics

6,141

3,779

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show abstract

“…One possible application of ATI is the mapping of ocean and river currents. This was demonstrated for airborne as well as for spaceborne SAR ATI data (Goldstein and Zebker, 1987;Romeiser et al, 2002;Runge et al, 2004;Scheiber et al, 1998;Siegmund et al, 2004).…”

Section: Introductionmentioning

confidence: 72%

Analysis of ground moving objects using SRTM/X-SAR data

Suchandt¹,

Eineder²,

Breit³

et al. 2006

ISPRS Journal of Photogrammetry and Remote Sensing

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“…This region is an excellent test site as it features large-area tidal flows that reach velocities of up to 7 m/s. This was shown in previous works using SRTM, TerraSAR-X and TanDEM-X [17], [18]. Although SRTM had a 7-m along-track baseline, which allowed for a moderate sensitivity to ground motion, the 11-day mission was not designed for frequent oceanographic observations.…”

Section: A Tidal Current Mappingmentioning

confidence: 91%

Ocean Surface Observations Using the TanDEM-X Satellite Formation

Suchandt

Runge

2015

IEEE J. Sel. Top. Appl. Earth Observations Remote Sensing

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The TanDEM-X SAR satellite formation permits improved ocean surface observations by means of bistatic alongtrack 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.Index Terms-Ocean surface currents, SAR along-track interferometry (ATI), TanDEM-X. working on numerous aspects of interferometric synthetic aperture radar (SAR) processing. He was engaged in data calibration, processor development, and digital elevation model processing of the Shuttle Radar Topography Mission (SRTM) and worked on the design and development of an automatic traffic information extraction system for TerraSAR-X data. He has a wide experience in SAR interferometry, ground moving-target indication, signal processing, and software development. Furthermore, he is currently responsible for the design of a SAR geodesy processing system. His research interests include ocean surface observations using multichannel spaceborne SAR.Hartmut Runge received the Dipl.-Ing. degree in communications technology from the University of Siegen, Siegen, Germany, in 1980. He is a DLR Staff Member and has been working with the first digital SAR processor and on various aspects of SAR processing and applications. He was one of the inventors of the basic chirp scaling algorithm and the responsible system engineer of the data processing chain for the X-SAR missions and the Shuttle Radar Topography Mission (SRTM). In that mission, he was also the Principal Investigator for the along-track interferometry experiments and used this technique to reveil the potential for ocean current measurements. His research interests include geodetic SAR applications.

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Mapping of tidal currents with SAR along track interferometry

Cited by 7 publications

References 3 publications

The Shuttle Radar Topography Mission

The Shuttle Radar Topography Mission

Analysis of ground moving objects using SRTM/X-SAR data

Ocean Surface Observations Using the TanDEM-X Satellite Formation

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