Spectral unmixing module : needs for reference spectra

Hello the community,

I would like to use the Spectral unmixing module on Sentinel-2 images.
Could anybody provide me reference spectra (CSV file or other format) for various classes of surfaces :

  • green leafs
  • soil with high moisture
  • branches and bark

The objective is the estimation of LAI over mangroves vegetation.

Thanks in advance