Good
I’m taking my first steps in all the interferometry radar work, including programming and Linux, so if I’m a little lost, excuse me.
I don’t know exactly what the problem is so I get this error by following the steps in the manual.
SNAP STDOUT:INFO: org.esa.snap.core.gpf.operators.tooladapter.ToolAdapterIO: Initializing external tool adapters
SEVERE: org.esa.s2tbx.dataio.gdal.activator.GDALDistributionInstaller: The environment variable LD_LIBRARY_PATH is not set. It must contain the current folder ‘.’.
INFO: org.esa.snap.core.util.EngineVersionCheckActivator: Please check regularly for new updates for the best SNAP experience.
Executing processing graph
INFO: org.hsqldb.persist.Logger: dataFileCache open start
WARNING: org.jlinda.core.Baseline: Max. error bperp modeling at 3D datapoints: 12.80198969076512m
WARNING: org.jlinda.core.Baseline: Max. error bperp modeling at 3D datapoints: 15.664838833705298m
done.
Error: [NodeId: Enhanced-Spectral-Diversity] Operator ‘SpectralDiversityOp’: Unknown element ‘useSuppliedShifts’
– org.jblas INFO Deleting /tmp/jblas3719835448648322246/libjblas.so
– org.jblas INFO Deleting /tmp/jblas3719835448648322246/libjblas_arch_flavor.so
– org.jblas INFO Deleting /tmp/jblas3719835448648322246
I have modified the xml but it still gives me the same problem.
I am not entirely sure if I should modify the first Enhanced-Spectral-Diversity (I have tried it both ways without modifying it and modifying it by putting Back-Geocoding) however I think that maybe it is a problem of
The environment variable LD_LIBRARY_PATH is not set. It must contain the current folder ‘.’.
At the end the solution has been to uninstall snap 7 and install version 6. At least I have been able to get results.
However, a series of warnings appear that I am not sure if they are important or not.
WARNING: org.jlinda.core.Baseline: Max. error bperp modeling at 3D datapoints: 12.80198969076512m
WARNING: org.jlinda.core.Baseline: Max. error bperp modeling at 3D datapoints: 15.664838833705298m
I have encountered an error for one pair (as of the moment) during the coregistration and interferogram formation using snap2stamps. Please see images below. This is the first time I encounter such error and I want to ask what could be the problem and how to resolve it.
The good thing is the other pairs (60 in total) are still in progress. I thought the processing will terminate after this error but it didn’t. I just want to ask also if it’s ok to delete this pair from the folders (coreg and ifg) if the error can’t be solved.
Please check if you can load the zip file of this product into SNAP. Maybe the download was incomplete.
The next script will take all products which are inside the split folder, so if you delete this one in there (as it was probably created but not finished) it will be skipped.
I was able to load the zip file of that specific product into SNAP. I was able to open all the bands (i, q, intensity) specifically. I got the same error for another pair as of writing.
You mean it is better to delete these products that got error in the split folder?
I have downloaded again the S1B images which got the same error during the coreg and ifg formation process. As of writing, I am redoing everything again using snap2stamps. I got 4 pairs with the same error after completing the first run, and I am afraid that excluding these pairs in the analysis would result to bad output. These are consecutive scenes paired with a common master and removing them would leave a 36-day gap.
Fortunately, the first pair I had the error and reported here has been solved. So I believe @ABraun is correct about the cause of the error. I will report what happens to the other pairs after completing the second attempt.
No. I am only using a single master I have selected using the InSAR Stack Tool in SNAP. What I mean is like this: the single master (20171011) paired with consecutive scenes (20161203, 20161215, 20161227, 20170108). These were the 4 pairs I got the same input/output error.
Removing these products would leave a 36-day gap which is I think not good for slow-moving landslide analysis.
Regards.
Testing the program I have got the following error:
WARNING: org.esa.s1tbx.sentinel1.gpf.SpectralDiversityOp: RangeShiftOp: Cross-correlation failed for all bursts, set range shift to 0
