An error occurred using GACOS data in mintpy

[mqd-lufei]

mintpy has an error using the "ztd" file downloaded from the GACOS website.

Full script that generated the error

smallbaselineApp.py MintpySenGamma.txt

Full error message

Traceback (most recent call last):
  File "/home/my_user/software/miniconda3/bin/smallbaselineApp.py", line 10, in <module>
    sys.exit(main())
             ^^^^^^
  File "/home/my_user/software/miniconda3/lib/python3.11/site-packages/mintpy/cli/smallbaselineApp.py", line 208, in main
    run_smallbaselineApp(inps)
  File "/home/my_user/software/miniconda3/lib/python3.11/site-packages/mintpy/smallbaselineApp.py", line 1117, in run_smallbaselineApp
    app.run(steps=inps.runSteps)
  File "/home/my_user/software/miniconda3/lib/python3.11/site-packages/mintpy/smallbaselineApp.py", line 898, in run
    self.run_tropospheric_delay_correction(sname)
  File "/home/my_user/software/miniconda3/lib/python3.11/site-packages/mintpy/smallbaselineApp.py", line 626, in run_tropospheric_delay_correction
    mintpy.cli.tropo_gacos.main(iargs)
  File "/home/my_user/software/miniconda3/lib/python3.11/site-packages/mintpy/cli/tropo_gacos.py", line 108, in main
    inps = cmd_line_parse(iargs)
           ^^^^^^^^^^^^^^^^^^^^^
  File "/home/my_user/software/miniconda3/lib/python3.11/site-packages/mintpy/cli/tropo_gacos.py", line 87, in cmd_line_parse
    raise ValueError(msg)
ValueError: Radar-coded file from gamma is NOT supported!
    Try to geocode the time-series and geometry files and re-run with them instead.

System information

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

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[yunjunz]

As the printout msg said, mintpy does not support Gamma products for operations involving geo-to-radar conversion, which requires a specific lookup table format, that Gamma does not have.

The recommended way around is also in the printout msg for your consideration.