My objective is to perform a land cover classification with multiple scenes over historical imagery (one year every decade).
Most of the imagery I have downloaded is level-2 imagery. From my understanding level-2 imagery is already atmospherically corrected. But since I am using multiple scenes, does that mean I still have to manually perform corrections even though it is a level-2 product? If so, what are all the types of correction that I need? Atmospheric, solar, geometric?
Edit: When I mosaic the images I get a huge visual difference, even though the images are only taken days apart and I have mosaicked them so their stretch hand display settings should be the same.