Title :
InSAR analysis of Miyake-jima volcano with Radarsat images
Author :
Ohkura, Hiroshi ; Shimada, Masanobu
Author_Institution :
Nat. Res. Inst. for Earth Sci. & Disaster Prevention, Ibaraki, Japan
Abstract :
A volcanic island, Miyake-jima, has erupted since the end of June 2000. Fifteen Radarsat images of the island are analyzed and eight fine interferograms are produced with a newly developed enhance filter although the island is covered with vegetation. Eleven GPS stations were set since 1998 in the island, but most of them stopped working mainly because of failure of the electric power supply. Differential SAR interferometry could detect crustal deformation in space continuously and is the only way to monitor crustal deformation caused by the volcanic activity. Orbital base lines of pairs of SAR images are corrected using GPS data
Keywords :
geodesy; radar imaging; radiowave interferometry; remote sensing by radar; spaceborne radar; synthetic aperture radar; volcanology; GPS stations; InSAR analysis; Miyake-jima Volcano; Radarsat images; crustal deformation; differential SAR interferometry; enhance filter; interferograms; volcanic activity; volcanic island; Condition monitoring; Filters; Geoscience; Image analysis; Instruments; Radar detection; Synthetic aperture radar interferometry; Vegetation mapping; Volcanic activity; Volcanoes;
Conference_Titel :
Geoscience and Remote Sensing Symposium, 2001. IGARSS '01. IEEE 2001 International
Conference_Location :
Sydney, NSW
Print_ISBN :
0-7803-7031-7
DOI :
10.1109/IGARSS.2001.978235
