Natural disaster damage evaluation using fully polarimetric techniques with spaceborne SAR data

Si Wei Chen, Yong Zhen Li, Xue Song Wang, Motoyuki Sato

Research output: Chapter in Book/Report/Conference proceedingConference contribution

2 Citations (Scopus)

Abstract

This paper focuses on earthquake/tsunami damage investigation over urban areas by exploring the multi-temporal spaceborne ALOS/PALSAR PolSAR data. The polarimetric scattering mechanism changes before- and after-tsunami, at the city block scale, have been examined using model-based decomposition and PO angle techniques. These analyzes are used to establish the relationships between the polarimetric scattering mechanism changes and damage levels. The basic scattering structures such as ground-wall dihedral structures from the built-up areas were found to be stable even over a long temporal baseline. Two polarimetric indexes have been proposed for damage level indication. Experimental results validate the efficiency of these two indicators, since the built-up areas with different damage levels can be well discriminated. These results demonstrate the importance and efficiency of full polarimetric information for natural disaster assessment.

Original languageEnglish
Title of host publication2014 31th URSI General Assembly and Scientific Symposium, URSI GASS 2014
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9781467352253
DOIs
Publication statusPublished - 2014 Oct 17
Event31st General Assembly and Scientific Symposium of the International Union of Radio Science, URSI GASS 2014 - Beijing, China
Duration: 2014 Aug 162014 Aug 23

Publication series

Name2014 31th URSI General Assembly and Scientific Symposium, URSI GASS 2014

Other

Other31st General Assembly and Scientific Symposium of the International Union of Radio Science, URSI GASS 2014
CountryChina
CityBeijing
Period14/8/1614/8/23

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Computer Networks and Communications

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