Strange effect on ReOh and ALFF maps

Dear experts,

I am trying to compute ALFF and ReOH maps with DPARSFA (for parameters of ReOh calculation, see attached document. In case of ALFF I have only smoothed before and leave all the rest the same). The pipeline runs smoothly but I got a strange effect on the resulting maps (see attached figure).

Could you please advice on what to do?

Thank you very much in advance,

Kind regards,


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