Chlorophyll fluorescence emission spectrum inside a leaf | INSTITUT DE PHYSIQUE DU GLOBE DE PARIS

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  Chlorophyll fluorescence emission spectrum inside a leaf

Type de publication:

Journal Article

Source:

Photochemical & Photobiological Sciences, Volume 7, Ticket 4, p.498-502 (2008)

ISBN:

1474-905X

Numéro d'accès:

WOS:000255645800016

Mots-clés:

UMR 7154 ; Géophysique spatiale et planétaire

Résumé:

Chlorophyll a fluorescence can be used as an early stress indicator. Fluorescence is also connected to photosynthesis so it can be proposed for global monitoring of vegetation status from a satellite platform. Nevertheless, the correct interpretation of fluorescence requires accurate physical models. The spectral shape of the leaf fluorescence free of any re-absorption effect plays a key role in the models and is difficult to measure. We present a vegetation fluorescence emission spectrum free of re-absorption based on a combination of measurements and modelling. The suggested spectrum takes into account the photosystem I and II spectra and their relative contribution to fluorescence, This emission spectrum is applicable to describe vegetation fluorescence in biospectroscopy and remote sensing.