Preliminary results of subsidence measurements in Xi'an by differential SAR interferometry

C. Zhao, Q. Zhang, Xiaoli Ding, Z. Li

Research output: Chapter in book / Conference proceedingConference article published in proceeding or bookAcademic researchpeer-review

Abstract

Differential Interferometric Synthetic Aperture Radar (D-InSAR) is used to monitor the land subsidence of Xi'an City, China over the period of 1992-1993. Four different interferometric pairs are used to calculate land subsidence rates over the monitored area. A high resolution external DEM and precise satellite orbit data are adopted to remove the topographic effects on interferograms in the D-InSAR processing. Historical leveling measurement results are used to assess the D-InSAR results by overlaying the 2-D subsidence patterns from D-InSAR and subsidence profiles from leveling measurements.
Original languageEnglish
Title of host publicationVI Hotine-Marussi Symposium on Theoretical and Computational Geodesy - IAG Symposium
Pages94-98
Number of pages5
Volume132
DOIs
Publication statusPublished - 1 Dec 2008
EventIAG Symposium - 6th Hotine-Marussi Symposium on Theoretical and Computational Geodesy - Wuhan, China
Duration: 29 May 20062 Jun 2006

Conference

ConferenceIAG Symposium - 6th Hotine-Marussi Symposium on Theoretical and Computational Geodesy
CountryChina
CityWuhan
Period29/05/062/06/06

Keywords

  • differential interferometric SAR (D-InSAR)
  • leveling
  • monitoring
  • Subsidence

ASJC Scopus subject areas

  • Computers in Earth Sciences
  • Geophysics

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