An application of polarimtric radar analysis on geophysical phenomena

Author

Shibayama, Takashi ; Yamaguchi, Yoshio

Author_Institution

Grad. Sch. of Sci. & Technol., Niigata Univ., Niigata, Japan

fYear

2013

fDate

21-26 July 2013

Firstpage

3191

Lastpage

3194

Abstract

It is known that all weather capability makes radar remote sensing the most suitable measure for natural disaster monitoring. Among them, fully polarimetric SAR (POLSAR) data with amplitude and phase information, i.e., the scattering matrix; is possible to retrieve the object information in more detail regardless of the weather. We applied polarimetric method to POLSAR data over actual disaster suffered area to show the efficiency of POLSAR data for disaster monitoring. A large scale landslide was clearly detected in a single decomposed image. Also, identifying landslides newly generated by an earthquake was possible to compare decomposed images of pre and post an earthquake. It is important that utilizing images observed in different direction (orbit) to reduce omission errors.

Keywords

earthquakes; geomorphology; geophysical techniques; radar polarimetry; remote sensing by radar; POLSAR data; amplitude information; geophysical phenomena; large scale landslide; natural disaster monitoring; omission errors; phase information; polarimetric SAR data; polarimetric radar analysis; post earthquake decomposed image; pre-earthquake decomposed image; radar remote sensing; scattering matrix; single decomposed image; weather capability; Earthquakes; Monitoring; Orbits; Satellites; Scattering; Synthetic aperture radar; Terrain factors; 4-CSPD; ALOS/PALSAR; POLSAR; disaster monitoring; landslide;

fLanguage

English

Publisher

ieee

Conference_Titel

Geoscience and Remote Sensing Symposium (IGARSS), 2013 IEEE International

Conference_Location

Melbourne, VIC

ISSN

2153-6996

Print_ISBN

978-1-4799-1114-1

Type

conf

DOI

10.1109/IGARSS.2013.6723505

Filename

6723505