Dear all,
Do you know if it is possible to get ALOS PALSAR Level 1.1 (focused) with zero-doppler geometry?
This is highly recommended to work with time series data, when wanted to use interferometry to measure any time of surface deformation.
As far as I know, the one provided by ESA is not zero-doppler.
Had any of you faced this type of issue?
You can use ALOS deskewing under “Geometry” to convert to zero-doppler.
You can use InSAR Scientific Computing Environment (ISCE) to focus ALOS PALSAR Level 1.0 data in deskewed zero-Doppler geometry. The stripmapStack processor in ISCE produces coregistered SLC images designed for time-series analysis. Level 1.0 data is available from the Alaska Satellite Facility, not sure about ESA.
As @EJFielding suggested, you can use the ISCE to process the ALOS Level 1.0 data with the zero-Doppler geometry. It is very well to work and then you can do the time series processing using the MintPy package.
ISCEis also compatibly with StaMPS, correct?
Thanks all for your answers!
Yes, exactly. You can use the tutorial which made by David in the ISCE package to know how you can do it.
Greetings dear Eric,
I hope you’re doing well. I have followed Unavco Insar processing course and I am interested in ISCE processing for a pair of ALOS PALSAR data level 1.1 (which I downloaded from ASF).
I used similar configuration files (ref, sec, and stripmapApp.xml) structure as suggested in course however the data used in the course is in level 1.0 which is raw data and the data available from ASF for my case is in level 1.1. When I start to process, just in the beginning at the preprocessing stage, It fails and it gives error and couldn’t generate .raw files for the pair of scenes. I understand that since my pair is already in level 1.1, it might be the case that I don’t need to do the earlier few steps in stripmapApp processing which are for level 1.0 data but the problem is, I do need SLC’s to progress through processing. Is there any suggestions for modification in the configuration files ? That may help me extract SLC’s from my already level 1.1 data ???
hello, i have the same question. Have you resolved it? Can you give me some suggestions? Thanks a lot.
Hi. I downloaded ALOS PALSAR level 1.0 raw data from ESA. They have level 1.0 data available but not each and every track. You may see whats available. For processing level 1.1 data… No… I tried my best but ISCE can probably not handle or maybe I dont know how to handle it. In the beginning steps, it fails to proceed…
Thanks a lot. Maybe I can find another way …
Hello, I have a new question. I downloaded the level 1.0 data and used the ISCE software to generate the registered SLC files. Later, I wanted to use STAMPS for time series processing. I have studied the ISCE2STAMPS workflow online, but I encountered a small issue while preparing the input_file. Could you please provide some guidance on this?
Hi dear. sorry for replying late.
I don’t know much about stamps. Have never used. But likely you will find this link useful
