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Ground Displacement Measurement by TerraSAR-X Image Correlation: The 2011 Tohoku-Oki Earthquake
Yague-Martinez, Nestor and Eineder, Michael and Cong, Xiaoying and Minet, Christian (2012) Ground Displacement Measurement by TerraSAR-X Image Correlation: The 2011 Tohoku-Oki Earthquake. IEEE Geoscience and Remote Sensing Letters, 9 (4), pp. 539-543. IEE. DOI: 10.1109/LGRS.2012.2196020. ISSN 1545-598X.
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Abstract
Japan was struck by an M9.0 megathrust earthquake on March 11, 2011. Synthetic aperture radar (SAR) images from the TerraSAR-X satellite have been used to generate a ground motion map by means of correlation techniques. Geophysical corrections due to solid Earth tide and atmospheric path delay effects have been applied. These corrections can reach up to 20 cm in the radar line of sight. Using this approach, absolute displacements in the radar line of sight and in the satellite flight direction are determined. This letter shows the potential of correlation techniques for ground motion monitoring and a comparison with the interferometric technique. Using multiple scenes, a wide area displacement map is generated and quantitatively compared with GPS data, showing a divergence of about 15 cm.
| Document Type: | Article | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Title: | Ground Displacement Measurement by TerraSAR-X Image Correlation: The 2011 Tohoku-Oki Earthquake | ||||||||||
| Authors: |
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| Date: | July 2012 | ||||||||||
| Journal or Publication Title: | IEEE Geoscience and Remote Sensing Letters | ||||||||||
| Refereed publication: | Yes | ||||||||||
| In Open Access: | No | ||||||||||
| In SCOPUS: | Yes | ||||||||||
| In ISI Web of Science: | Yes | ||||||||||
| Volume: | 9 | ||||||||||
| DOI: | 10.1109/LGRS.2012.2196020 | ||||||||||
| Page Range: | pp. 539-543 | ||||||||||
| Editors: |
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| Publisher: | IEE | ||||||||||
| ISSN: | 1545-598X | ||||||||||
| Status: | Published | ||||||||||
| Keywords: | Earthquake, TerraSAR-X, displacement measurement, image correlation | ||||||||||
| HGF - Research field: | Aeronautics, Space and Transport | ||||||||||
| HGF - Program: | Raumfahrt | ||||||||||
| HGF - Program Themes: | R EO - Erdbeobachtung | ||||||||||
| DLR - Research area: | Raumfahrt | ||||||||||
| DLR - Program: | R EO - Erdbeobachtung | ||||||||||
| DLR - Research theme (Project): | R - Projekt TerraSAR-X Nutzlastbodensegment | ||||||||||
| Location: | Oberpfaffenhofen | ||||||||||
| Institutes and Institutions: | Remote Sensing Technology Institute > SAR Signal Processing | ||||||||||
| Deposited By: | Dr.rer.nat. Michael Eineder | ||||||||||
| Deposited On: | 03 Sep 2012 08:35 | ||||||||||
| Last Modified: | 03 Apr 2013 15:40 |
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