EAS Publications Series
Volume 8, 2003Astronomy with High Contrast Imaging
|Page(s)||17 - 24|
|Published online||28 May 2003|
Claude Aime and Rémi Soummer (eds)
EAS Publications Series, 8 (2003) 17-24
Detecting the terrestrial vegetation while observing Earth as a single dot
OHP, CNRS, 04870 Saint-Michel-l'Observatoire, France
2 LISE CNRS 04870 Saint-Michel-l'Observatoire, and LESIA CNRS Observatoire de Paris-Meudon, Place Jules Janssen, 92195 Meudon Cedex, France
3 LUTH CNRS Observatoire de Paris-Meudon, Place Jules Janssen, 92195 Meudon Cedex, France
Spectroscopic observations of the Earthshine allowed us to make a relative measurement of the integrated Earth reflectance spectrum in which the terrestrial vegetation signature around λ = 700 nm has been detected. Therefore we conclude that the terrestrial vegetation, and thus terrestrial life, can be detected remotely when the Earth is seen as a single dot. We also conclude that vegetation can be detected on an extrasolar Earth-like planet, if a spectral resolution around 50 is available.
© EAS, EDP Sciences, 2003
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