Non-Overlapping Results from MintPy SBAS Using ISCE2 Stack

[woohyun-jeon]

Hi, I performed SBAS processing using ISCE2 and MintPy.

stackSentinel.py -s SLC/ -d DEM/*.dem.wgs84 -a AuxDir/ -o Orbits/ -b '37.39 37.44 126.85 126.92' -c 2 --num_proc 32 -r 8 -z 2
smallbaselineApp.py mintpy.txt --dir mintpy

Here is the mintpy.txt configuration I used:

========================================================

##-------------------------------- MintPy -----------------------------##
########## 1. load_data
mintpy.load.processor = isce
mintpy.compute.numWorker = 28

##---------for ISCE only:
mintpy.load.metaFile = ../reference/IW*.xml
mintpy.load.baselineDir = ../baselines

##---------interferogram stack:
mintpy.load.unwFile = ../merged/interferograms//filt_.unw
mintpy.load.corFile = ../merged/interferograms//filt_.cor
mintpy.load.connCompFile = ../merged/interferograms//filt_.unw.conncomp

##---------geometry:
mintpy.load.demFile = ../merged/geom_reference/hgt.rdr
mintpy.load.lookupYFile = ../merged/geom_reference/lat.rdr
mintpy.load.lookupXFile = ../merged/geom_reference/lon.rdr
mintpy.load.incAngleFile = ../merged/geom_reference/los.rdr
mintpy.load.azAngleFile = ../merged/geom_reference/los.rdr
mintpy.load.shadowMaskFile = ../merged/geom_reference/shadowMask.rdr
mintpy.load.waterMaskFile = None

##---------subset (optional):
mintpy.subset.lalo = 37.3900:37.4400,126.8500:126.9200

########## 2. modify_network
mintpy.network.tempBaseMax = 180
mintpy.network.perpBaseMax = 150

########## 5. invert_network
mintpy.networkInversion.maskDataset = coherence
mintpy.networkInversion.maskThreshold = 0.2
mintpy.networkInversion.minTempCoh = 0.2

########## 8. correct_troposphere (optional but recommended)
mintpy.troposphericDelay.method = no #[pyaps / height_correlation / gacos / no], auto for pyaps

########## 9. deramp (optional)
mintpy.deramp = linear

########## 13.4 plot
mintpy.plot = yes
mintpy.plot.dpi = 600

========================================================

However, the results appear as non-overlapping patches. I'm curious why they are showing up separately like this.

To address the issue, I added the -V True option to the stackSentinel.py command, but the problem exists.

Has anyone experienced the same issue?