Near-UV to near-IR disk-averaged Earth's reflectance spectra
  We report 320 to 1020nm disk-averaged Earth reflectance spectra obtained from Moon's Earthshine observations with the EMMI spectrograph on the NTT at ESO La Silla (Chile). The spectral signatures of Earth atmosphere and ground vegetation are observed. A vegetation red-edge of up to 9% is observed on Europe and Africa and ~2% upon Pacific Ocean. The spectra also show that Earth is a blue planet when Rayleigh scattering dominates, or totally white when the cloud cover is large. 
S. Hamdani, L. Arnold, C. Foellmi, J. Berthier, D. Briot, P. Francois,   P. Riaud and J. Schneider