Title :
Polarimetric SAR remote sensing of earthquake/tsunami disaster
Author :
Park, Sang-Eun ; Yamaguchi, Yoshio ; Singh, Gulab ; Kobayashi, Hirokazu
Author_Institution :
Grad. Sch. of Sci. & Technol., Niigata Univ., Niigata, Japan
Abstract :
In this study, changes of the L-band PALSAR polarimetric signal scattered from earthquake/tsunami damaged areas has been investigated. Since it is not always possible to get data sets having sufficiently good spatial/temporal resolutions to detect large area of damages precisely, it is of specific interest to use of wave polarization information appropriate to assess disaster-induced changes of scattering phenomena. Experimental results indicate that different polarimetric parameters and similarity measures provide complimentary information on damages. Consequently, it is important to utilize polarimetric features maximizing target changes and minimizing the false-alarm and the missed-alarm rates in developing damage assessment algorithms.
Keywords :
earthquakes; geophysical techniques; remote sensing by radar; synthetic aperture radar; tsunami; L-band PALSAR polarimetric signal; damage assessment algorithms; earthquake damaged area; earthquake disaster; false-alarm rate; missed-alarm rate; polarimetric SAR remote sensing; polarimetric parameters; scattering phenomena; spatial resolution; temporal resolution; tsunami damaged area; tsunami disaster; wave polarization information; Buildings; Covariance matrix; Earthquakes; Remote sensing; Scattering; Synthetic aperture radar; Tsunami; ALOS/PALSAR; SAR polarimetry; Tohoku Earthquake;
Conference_Titel :
Geoscience and Remote Sensing Symposium (IGARSS), 2012 IEEE International
Conference_Location :
Munich
Print_ISBN :
978-1-4673-1160-1
Electronic_ISBN :
2153-6996
DOI :
10.1109/IGARSS.2012.6351340