What do the numbers represent when you download an image, in my case Landsat 8 OLI TIRS surface reflectance.

Are they DN numbers or reflectance values?

If the image is not surface reflectance product, do those numbers still mean the same?

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1 Answer 1


It is reflectance value but has been stored in native integer raster format by multiply it with 10000. So divide by 10000 for the surface reflectance unit.

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