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1) SAR interferograms published here are analyzed by GSI. The Ministry of Economy, Trade and Industry (METI) and the Japan Aerospace Exploration Agency (JAXA) retain ownership of ALOS/PALSAR data. If you cite a PALSAR interferogram, please indicate that interest and clearly write credit titles on the interferogram as follows. "Analysis by GSI from ALOS raw data of JAXA, METI".

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Central Italy Earthquake (2009/4/6,M6.3)

How to understand the SAR interferogram

No. Interferogram Specifications Comments Down
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1 Click image to enlarge Observation date 2008/07/20
2009/04/22

The obvious crustal deformation caused by the earthquake appears.

Accuracy of the used orbit data:High precision orbit data.

Observation Mode FBD/HH
FBS/HH
Orbital direction Ascending
Off-nadir
[degree]
34.3
Baseline[m]
(Bperp)
-183
Range
(lat/lon)
41.90/42.70/
12.56/13.66
2 Click image to enlarge Observation date 2006/06/04
2009/04/27

The obvious crustal deformation caused by the earthquake appears.

Accuracy of the used orbit data:High precision orbit data.

Observation Mode FBS/HH
FBS/HH
Orbital direction Ascending
Off-nadir
[degree]
41.5
Baseline[m]
(Bperp)
+972
Range
(lat/lon)
41.90/42.70/
12.88/13.98
3 Click image to enlarge Observation date 2009/04/07
2009/05/23

The phase variation which may indicate postseismic deformation appears partly, but is indistinguishable from noise.

Accuracy of the used orbit data:High precision orbit data.

Observation Mode FBS/HH
FBS/HH
Orbital direction Ascending
Off-nadir
[degree]
9.9
Baseline[m]
(Bperp)
-302
Range
(lat/lon)
41.90/42.70/
12.90/14.00

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