KeyError: UTM_ZONE while running hyp3 MintPy_Time_Series_From_Prepared_Data_Stack

[Jichao96]

Description of the problem

It seems that when defining the meta, there is no 'UTM_ZONE'

Full script that generated the error

PASTE CODE HERE

Full error message

Traceback (most recent call last):
  File "/root/tools/miniconda3/envs/insarenv/bin/smallbaselineApp.py", line 8, in <module>
    sys.exit(main())
             ^^^^^^
  File "/root/tools/MintPy/src/mintpy/cli/smallbaselineApp.py", line 208, in main
    run_smallbaselineApp(inps)
  File "/root/tools/MintPy/src/mintpy/smallbaselineApp.py", line 1117, in run_smallbaselineApp
    app.run(steps=inps.runSteps)
  File "/root/tools/MintPy/src/mintpy/smallbaselineApp.py", line 874, in run
    self.run_load_data(sname)
  File "/root/tools/MintPy/src/mintpy/smallbaselineApp.py", line 176, in run_load_data
    mintpy.cli.load_data.main(iargs)
  File "/root/tools/MintPy/src/mintpy/cli/load_data.py", line 123, in main
    load_data(inps)
  File "/root/tools/MintPy/src/mintpy/load_data.py", line 784, in load_data
    prepare_metadata(iDict)
  File "/root/tools/MintPy/src/mintpy/load_data.py", line 633, in prepare_metadata
    prep_module.main(iargs)
  File "/root/tools/MintPy/src/mintpy/cli/prep_hyp3.py", line 94, in main
    prep_hyp3(inps)
  File "/root/tools/MintPy/src/mintpy/prep_hyp3.py", line 121, in prep_hyp3
    meta = add_hyp3_metadata(fname, meta, is_ifg=is_ifg)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/root/tools/MintPy/src/mintpy/prep_hyp3.py", line 61, in add_hyp3_metadata
    N, W = ut.utm2latlon(meta, W, N)
           ^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/root/tools/MintPy/src/mintpy/utils/utils0.py", line 319, in utm2latlon
    zone_num = int(meta['UTM_ZONE'][:-1])
                   ~~~~^^^^^^^^^^^^
KeyError: 'UTM_ZONE'

System information

• Operating system:
• Python environment:
• MintPy version:
• Your custom / default template file (if the bug is related to a specific dataset):

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[yunjunz]

This metadata has been introduced for a while now for hyp3. I recommend deleting all existing *.rsc files next to your tif files and running mintpy again.

If the error still persists, could you run the printout prep_hyp3.py command and fill out the detailed template content, so that I may be able to reproduce your error using the Ridgecrest example dataset?

[saeid-aminjafari]

If you are using OpenSARLab Jupyter notebook to prepare your Hyp3 stacks for Mintpy, you should remove the line below from the processing cell that crops the scene:

gdal.Warp(str(clip), str(clip), dstSRS='EPSG:4326', dstNodata=0)

[yunjunz]

This problem is reproduced by a student in the EarthScope 2023 course. The solution from @saeid-aminjafari above works.

[LF-Earth]

That line with gdal.Warp is making the conversion to lat/lon, correct?
So, the new Mintpy version is not accepting hyp3 files in lat/lon?
I have the same error and I converted the files to lat/lon.

[surendarmrs]

@saeid-aminjafari do you have any idea for the same problem in mintpy processing using Jupiter notebook? @yunjunz I am using gamma interferograms from ASF. I didn't see any .rsc files in that.