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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:
AuthorsInstitution or Email of Authors
Yague-Martinez, NestorTUM
Eineder, MichaelUNSPECIFIED
Cong, XiaoyingTUM-LMF
Minet, ChristianUNSPECIFIED
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:
EditorsEmail
IEEE, Geoscience and Remote Sensing SocietyUNSPECIFIED
Publisher:IEE
ISSN:1545-598X
Status:Published
Keywords:Earthquake, TerraSAR-X, displacement measurement, image correlation
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Space
HGF - Program Themes:Earth Observation
DLR - Research area:Raumfahrt
DLR - Program:R EO - Erdbeobachtung
DLR - Research theme (Project):R - Projekt TerraSAR-X Nutzlastbodensegment (old)
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:22 Nov 2013 13:40

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