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Bull. Earthq. Res. Inst.
Univ. Tokyo
Vol. pp.
* e-mail : [email protected]
: ALOS, PALSAR, Noto Hanto earthquake, Di erential Interferometry, Surface displacement
JGI, Inc.
Aiming to understand surface deformation patterns associated with the Noto Hanto
earthquake, di erential interferometry was performed using ALOS PALSAR data acquired on
February (before the earthquake) and April, (after the earthquake). Displacement in the line
of sight (LOS) of the radar was mapped through processing steps such as generation of single look
complex (SLC) image data, registration of two SLCs, refinement of baseline, and phase unwrapping
of di erential interferogram. LOS distance after the earthquake was found to decrease in the WNW
direction from the Anamizu Notokashima area, and the maximum reduction of cm around
Akakami Kitawakisaki area was analyzed, as well as the increase of the LOS distance up to cm
in the area of Minazuki through Nishideyama area. Contours of LOS displacement show a pattern
like a concentric circle centered several kilometers away to the NW of the Akakami-Kitawakisaki
area, which is concordant with the location of the epicenter reported by Japan Meteorological
Agency.
SAR
SAR *
SAR
SAR
Ozawa, ;
Tobita, ; Nishimura, ; Tobita,
; Yarai, ; Ozawa,
PALSAR PAL-
L SAR SAR . *
ALOS PALSAR PALSAR SAR
*
Takumi Onuma*
et al.,
et al., et al., et
al., et al., et al.,
Key words
Abstract
SAR
: SLC
Surface Deformation Patterns Associated with the
Noto Hanto Earthquake Detected by Satellite SAR Dif-
ferential Interferometry
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L . cm
Constantini, M., , A novel phase unwrapping method
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Constantini, M. and P.A. Rosen, , A generalized phase
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VISAT SAR interferometry, ,
mation Associated with the West O Fukuoka Pre-
fecture Earthquake Derived from ENVISAT/InSAR and
Ozawa, T., S. Nishimura and H. Ohkura, , Crustal Defor- wara and P.A. Rosen, , -D surface deformation of
the Usu eruption measured by matching of SAR
images, , .
Fault-slip Modeling, Yarai, H., T. Ozawa, T. Nishimura, T. Tobita and T. Imakiire,
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M. Murakami, , Deformation of the North Sak- .
halin earthquake detected by JERS- /SAR interfero- Received February ,
metry, , . Accepted March ,
Tobita, M., M. Murakami, H. Nakagawa, H. Yarai, S. Fuji-
Earth Planets Space,
Geophys. Res. Lett.,Report of the National Research In-
stitute for Earth Science and Disaster Prevention,
Earth, Planets and Space,
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