Detection of three-dimensional geodetic displacements due to the 2011 Tohoku Earthquake from TerraSAR-X intensity images

• LIU Wen

  Graduate School of Engineering, Chiba University

• YAMAZAKI Fumio

  Graduate School of Engineering, Chiba University

• MATSUOKA Masashi

  Interdisciplinary Graduate School of Science and Engineering, Tokyo Institute of Technology

• NONAKA Takashi

  Satellite Business Division, PASCO Corporation

• SASAGAWA Tadashi

  Satellite Business Division, PASCO Corporation

Bibliographic Information

Other Title

• TerraSAR-X 強度画像を用いた2011年東北地方太平洋沖地震における3次元地殻変動の検出
• TerraSAR-X キョウド ガゾウ オ モチイタ 2011ネン トウホク チホウ タイヘイヨウオキ ジシン ニ オケル 3ジゲン チカク ヘンドウ ノ ケンシュツ

Abstract

The Mw 9.0 Tohoku Earthquake that occurred on March 11, 2011, off the Pacific coast of northeastern (Tohoku) Japan caused gigantic tsunamis, resulting in widespread devastation and crustal movements. In a previous study, we proposed a method for capturing the two-dimensional (2D) surface movements from pairs of temporal intensity images, based on the high orbit accuracy of the satellite TerraSAR-X (TSX). Detecting three-dimensional (3D) displacement from a single pair of TSX images is difficult, and thus in the present study we used three pairs of TSX images taken in the ascending and descending paths to estimate 3D crustal movements. First, the 2D crustal movements due to the 2011 Tohoku earthquake were detected from three respective pairs of images. We derived the relationship between the 3D displacement and the 2D converted movement in synthetic aperture radar (SAR) images according to the observation model and acquisition conditions of the SAR sensor. We then estimated the 3D movements by combining the detected 2D movements that occurred within a short time interval. We compared the results with the GEONET observation records and found that the results and records are consistent with each other.

Journal

• Journal of The Remote Sensing Society of Japan

  Journal of The Remote Sensing Society of Japan 34 (3), 166-176, 2014

  The Remote Sensing Society of Japan

Keywords

• crustal movement
• area-based correlation
• SAR intensity image
• regression analysis
• GPS ground control station

Details

• CRID: 1390282679642431744
• NII Article ID: 130004877922
• NII Book ID: AN10035665
• DOI: 10.11440/rssj.34.166
• ISSN: 18831184
• ISSN: 02897911
• NDL BIB ID: 025724156
• Web Site: https://agriknowledge.affrc.go.jp/RN/2030873189
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I025724156
• Text Lang: en
• Data Source:
  • JaLC
  • IRDB
  • NDL
  • CiNii Articles
  • KAKEN
  • Crossref
• Abstract License Flag: Disallowed