A Land-Cover Monitoring for Volcanoes by using ALOS-PALSAR Quad-Pol. Data

Author

Wada, Yutaka ; Ukawa, Motoo ; Yamaguchi, Yoshio ; Ohkura, Hiroshi

Author_Institution

Volcano Res. Dept., Nat. Res. Inst. for Earth Sci. & Disaster Prevention, Tsukuba

Volume

3

fYear

2008

fDate

7-11 July 2008

Abstract

We applied three-component (H//A) decomposition analysis and four-component (P_s, P_d, P_v and P_c) analysis to ALOS-PALSAR quad-polarized data of Izu-Oshima and Miyakejima volcanoes to monitor volcanic activities. The results demonstrated clear discrimination of forest, urban and volcanic deposit areas, indicating a high possibility of detecting land-cover changes at volcanoes by space-borne PolSAR observations.

Keywords

remote sensing by radar; spaceborne radar; synthetic aperture radar; terrain mapping; vegetation; volcanology; ALOS; Advanced Land Observing Satellite; Izu-Oshima volcano; Japan; Miyakejima volcano; PALSAR; Phased Array type L-band Synthetic Aperture Radar; PolSAR technique; SAR; forest; four-component decomposition analysis; land-cover monitoring; quad-polarized data; space-borne radar; synthetic aperture radar; three-component decomposition analysis; Azimuth; Cities and towns; Entropy; L-band; Monitoring; Optical scattering; Sensor arrays; Synthetic aperture radar; Volcanic activity; Volcanoes; PALSAR; Polarimetry; Volcano;

fLanguage

English

Publisher

ieee

Conference_Titel

Geoscience and Remote Sensing Symposium, 2008. IGARSS 2008. IEEE International

Conference_Location

Boston, MA

Print_ISBN

978-1-4244-2807-6

Electronic_ISBN

978-1-4244-2808-3

Type

conf

DOI

10.1109/IGARSS.2008.4779272

Filename

4779272