I am using ALOS-2 data to perform SAR offset tracking experiment aiming at the detection of land slide. Now I have met some problems and I'm wondering if anyone has met the same problem and can give me a hand.
Q1: I checked the SNAP software manual and the “offset tracking tutorial”, both are saying this toolbox can detect the deformation of glacier. Can the toolbox also be used in other fast moving cases, such as land slide?
Q2: I performed offset tracking experiment using S-1A GRD data according to the “offset tracking tutorial”, and I get good result, everything goes well. But, when it came to ALOS-2 data, there are problems:
My processing steps are:
(1) Import SAR sensors-ALOS2 CEOS-VOL-ALOS2177800820-170907-FBDR1.5RUA.
I imported master and slave images by this way, and it works well.
(2) DEM ASSISTED COREGISTRATION
In this step, an error occurs, please see the picture I upload, there is a red “0” at the bottom left, no output files. I can not move on.
(3) Are there any tutorials on ALOS-2 offset tracking? Or, someone expert could offer me a standard processing chain on ALOS-2 offset tracking?
(4) For ALOS-2 offset tracking, which format(level) of data should be used? L1.1 or L1.5?
Thanks in advance!