Title :
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
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;
Conference_Titel :
Geoscience and Remote Sensing Symposium (IGARSS), 2013 IEEE International
Conference_Location :
Melbourne, VIC
Print_ISBN :
978-1-4799-1114-1
DOI :
10.1109/IGARSS.2013.6723505
