3.Why in tool “Spectral Unmixing” only a radiance is available?
4. What is difference in radiance and reflectance? And dl and DN?
5. What scientific books or papers do you recommend to read read? The main thing that it was written in simple language
So, TOA radiance is every light which reflects off the planet as seen from space measured in radiance units. Right?
And atmospheric correction is then a method how to try to remove influence of just that portion of light reflected off atmosphere on the image and preserve the part reflected off the surface below.
And this is the way to get BOA (bottom of atmosphere) or surface radiance, rigft?
L1C products are TOA, and when I use sen2cor, I convert TOA to L2A - BOA, is not it?
So, is it try, that in this video we can see TOA reflection graph, because the author of video used L1C product?
And can I suppose (or not), that dl is equal % (BOA) when I use L2A - BOA product, and create pics like this ?