Surface displacements of the Kanto plain, Japan, and subsurface structure: Insight from persistent scatterer SAR interferometry

Abstract

PreviousNext No AccessProceedings of the 12th SEGJ International Symposium, Tokyo, Japan, 18-20 November 2015Surface displacements of the Kanto plain, Japan, and subsurface structure: Insight from persistent scatterer SAR interferometryAuthors: Kazuya IshitsukaPau Prats-IraolaMatteo NanniniKazuya IshitsukaFukada Geological Institute ()Search for more papers by this authorEmail the author at [email protected], Pau Prats-IraolaGerman Aerospace Center (DLR)Search for more papers by this author, and Matteo NanniniGerman Aerospace Center (DLR)Search for more papers by this authorhttps://doi.org/10.1190/segj122015-012 SectionsAboutPDF/ePub ToolsAdd to favoritesDownload CitationsTrack CitationsPermissions ShareFacebookTwitterLinked InRedditEmail Abstract We estimated recent surface displacements around the Kanto plain, Japan, by means of persistent scatterer SAR interferometry (PSInSAR) with ALOS/PALSAR data acquired from January 2007 to March 2011 and TerraSAR-X data acquired from March 2011 to November 2012. From the analysis of ALOS/PALSAR data, several subsidences due to groundwater extraction were identified. On the other hand, the analysis of TerraSAR-X data showed that displacement pattern was changed after the 2011 Tohoku earthquake: Our analysis revealed local uplift possibly due to visco-elastic rebound around Tokyo, where significant displacements had not ocuured just before the earthquake. The subsidence at the central Kanto plain and the local uplift around Tokyo are well correlated with the geomorphological feature. Our results showed the advantage of PSInSAR analysis for accurate mapping of surface displacements. Keywords: Persistent scatterer SAR interferometry, Ground displacement, The Kanto plain, The 2011 Tohoku earthquakePermalink: https://doi.org/10.1190/segj122015-012FiguresReferencesRelatedDetails Proceedings of the 12th SEGJ International Symposium, Tokyo, Japan, 18-20 November 2015ISSN (online):2159-6832Copyright: 2015 Pages: 264 publication data© 2015 Published in electronic format with permission by the Society of Exploration Geophysicists of JapanPublisher:Society of Exploration Geophysicists HistoryPublished Online: 20 Nov 2015 CITATION INFORMATION Kazuya Ishitsuka, Pau Prats-Iraola, and Matteo Nannini, (2015), "Surface displacements of the Kanto plain, Japan, and subsurface structure: Insight from persistent scatterer SAR interferometry," SEG Global Meeting Abstracts : 42-43. https://doi.org/10.1190/segj122015-012 Plain-Language Summary KeywordsPersistent scatterer SAR interferometryGround displacementThe Kanto plainThe 2011 Tohoku earthquakePDF DownloadLoading ...