title: Chlorophyll fluorescence emission spectrum inside a leaf.
abstract: 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.
authors.affiliation: Solar Radiation Group, Department of Earth Physics and Thermodynamics, University of Valencia, Spain.
authors.forename: Roberto
authors.initials: R
authors.lastname: Pedrós
authors.forename: Ismael
authors.initials: I
authors.lastname: Moya
authors.forename: Yves
authors.initials: Y
authors.lastname: Goulas
authors.forename: Stéphane
authors.initials: S
authors.lastname: Jacquemoud
mesh_terms: D002734:Chlorophyll / Q000737:chemistry*; D045331:Photosystem I Protein Complex / Q000737:chemistry / Q000378:metabolism; D045332:Photosystem II Protein Complex / Q000737:chemistry / Q000378:metabolism; D018515:Plant Leaves / Q000737:chemistry / Q000201:enzymology; D013050:Spectrometry, Fluorescence / Q000379:methods*
chemical_list: D045331:Photosystem I Protein Complex; D045332:Photosystem II Protein Complex; D002734:Chlorophyll