Title :
Analysis of ocean surface currents with TanDEM-X ATI: A case study in the Baltic Sea
Author :
Suchandt, Steffen ; Lehmann, Andreas ; Runge, Hartmut
Author_Institution :
German Aerosp. Center (DLR), Remote Sensing Technol. Inst., Wessling, Germany
Abstract :
The monitoring of ocean currents is an important aspect of assessing climate changes. Space borne SAR along-track interferometry (ATI) has the potential to significantly contribute to this field. It can provide large-area, world-wide surface current measurements. The problem of mapping comparatively low velocities can be solved by formations of SAR satellites that allow for sufficiently sensitive ATI measurements. We report on a case study in the Baltic Sea, where we investigate surface currents with the TanDEM-X satellite formation. First ATI data have been analyzed and the results indicate the suitability of the method. The paper gives an overview on the study that includes comprehensive TanDEM-X ATI data acquisition and processing as well as comparison to reference data and to a coupled sea-ice model.
Keywords :
climatology; data acquisition; oceanographic regions; radar interferometry; remote sensing by radar; sea ice; spaceborne radar; synthetic aperture radar; Baltic Sea; SAR satellites; TanDEM-X ATI data acquisition; TanDEM-X ATI data processing; TanDEM-X satellite formation; climate changes; coupled sea-ice model; large-area world-wide surface current measurements; ocean current monitoring; ocean surface currents; reference data; spaceborne SAR along-track interferometry measurement data; Current measurement; Ocean temperature; Sea surface; Surface topography; Surface treatment; Synthetic aperture radar; Along-Track Interferometry; Baltic Sea; Ocean Surface Currents; TanDEM-X;
Conference_Titel :
Geoscience and Remote Sensing Symposium (IGARSS), 2014 IEEE International
Conference_Location :
Quebec City, QC
DOI :
10.1109/IGARSS.2014.6947341
