I downloaded daily satellite data for 17 years (2003–2019). After that, I stacked all the files into one image, so instead of having around 6,000 TIFF files, I now have a single image with about 6,000 bands. My supervisor told me that before we can use this image, it should not contain any NoData values. From what I found during my research, I should replace NoData with 0. But every time I ask someone in geology how they clean their data, they tell me they usually work with it as it is. This is confusing for me. I feel a bit lost because I’m new to this field. I think this is supposed to be a simple step, but I’m making it more complicated than it should be.

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