thank you for all the solutions posted here. They have helped me to successfully run all steps of the snap2stamps package until now even I am a total newbie to linux and to SAR data. However, I am struggling now with mt_prep_snap and reading the forum I haven’t found anybody experiencing the same problem. I am using S-1 data, 28 scenes in total all from 2018.
The problem is the following: After sourcing StaMPS_CONFGI.bash I run mt_prep_snap in a new empty folder as suggested earlier in the forum. It starts reading the .rslc-files and the results seem ok (no pixels with zero amplitude), see here:
Which was the mean amplitude values for the different images?
I am not sure you really solve it… mt_prep_gamma_snap could be, but not mt_prep_gamma as I remember it…
It could seem that you solve it and then later you start to get errors in StaMPS or at some later step…so please be careful with this.
Well… I see there 2 warnings where SLC had 0 amplitude… I strongly believe that this is causing all your problems.
Please remove them (and also their respective interferograms) and apply again mt_prep_snap (please be sure in the log there is not any attempt to open mt_prep_snap file … this might cause you issues in the future.
After debugging the code of that operator I found out that I had two bands in my stack with the same dates of acquisition (by the way, the date in question was the date in the error message!). https://tutuapp.uno/ , https://9apps.ooo/
i completed whole steps of stamps using 16 images, now got csv file. But although i have got a lot of images belongs to various dates, i only see very few. it should have been totally export_res1 to export_res15 but now i have export_res1 to export_res8 in my csv file. This is what kind of csv file i have. @mdelgado@thho
I have had this exact same error when i started processing.
In my case i had accidentally left a ascending file in my descending processing folder.
other options are:
bad ifgs or empty raw images.
You can check this in the LOG of mt_prep_snap.
in the LOG you will see a number for ammount of zero pixels and the mean amplitude.
if the mean amplitude is low or you have to many zero pixels something is wrong.
check and/or delete this ifg from the processing and start again.
This will probably saolve the error (which is related to the ciphers in the array and the matrix dimension).