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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".

2) If you download a image file, please click the target that you want to save, right-click the image displayed on the screen, and select "Save Target As".


● These images may include radio wave propagation delay.
Click here for the position of Ascending interferograms.
● Also see "Crustal Deformation of the Mexico Earthquake in 2010", GSI Geography and Crustal Dynamics Research Center Topics.

Mexico Earthquake(2010/4/4,M7.2)

How to understand the SAR interferogram

No. Interferogram Specifications Comments Down
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1 2010.05.24up Click image to enlarge Observation date 2008/02/08
2010/05/16

There is the phase change around the center this image which may be caused by the earthquake.

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

Observation Mode FBS/HH
FBS/HH
Orbital direction Descending
Off-nadir
[degree]
34.3
Path
Frame
532
2950-2980
Baseline[m]
(Bperp)
-202
Range
(lat/lon)
31.11/33.75/
-116.09/-114.71
2 2010.04.22up Click image to enlarge Observation date 2008/02/25
2010/04/17

There is the phase change around the upper right this image which may be caused by the earthquake.

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

Observation Mode FBS/HH
FBS/HH
Orbital direction Descending
Off-nadir
[degree]
34.3
Path
Frame
533
2950-2980
Baseline[m]
(Bperp)
-478
Range
(lat/lon)
31.10/33.24/
-116.53/-115.35
3 2010.04.22up Click image to enlarge Observation date 2010/01/15
2010/04/17

There is the phase change around the center this image which may be caused by the earthquake.

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

Observation Mode FBS/HH
FBS/HH
Orbital direction Ascending
Off-nadir
[degree]
34.3
Path
Frame
211
620-640
Baseline[m]
(Bperp)
+671
Range
(lat/lon)
31.14/33.27/
-115.68/-114.56
4 2010.04.07up Click image to enlarge Observation date 2010/01/03
2010/04/5

There is the phase change around the lower right this image which may be caused by the earthquake.

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

Observation Mode FBS/HH
FBS/HH
Orbital direction Ascending
Off-nadir
[degree]
34.3
Path
Frame
213
630-660
Baseline[m]
(Bperp)
+555
Range
(lat/lon)
31.65/34.26/
-116.88/-115.58

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