I am trying to apply GACOS service to correct atmospheric artifacts on InSAR interferogram. In the GACOS manual provided with the GACOS_Ultility example, it is mentioned that data storage of the interferogram should be grid binary format. In my case, I created the interferogram using ESA software SNAP and then exported it in “.tiff” format. However, I had an error of invalid identifier while reading the header of the interferogram file using the matlab code of the example provided by GACOS.

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