Bidirectional sun-induced chlorophyll fluorescence emission is influenced by leaf structure and light scattering properties — A bottom-up approach

Chlorophyll fluorescence emission spectrum inside a leaf.

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 i...

Sun-Induced Chlorophyll Fluorescence, Photosynthesis, and Light Use Efficiency of a Soybean Field

250 words) Recent development of sun-induced chlorophyll fluorescence (SIF) technology is stimulating studies to remotely approximate canopy photosynthesis (measured as gross primary production, GPP). While multiple applications have advanced the empirical relationship between GPP and SIF, mechanistic understanding of this relationship is still limited. GPP:SIF relationship, using the standard ...

A Bidirectional Bottom-up Parser for Tag

Depolarized resonance light scattering by porphyrin and chlorophyll a aggregates.

A quantum mechanical model is developed for the observed resonance enhancement of light scattering by aggregates of electronically interacting chromophores. Aggregate size, monomer oscillator strength, extent of electronic coupling, and aggregate geometry are all important determinants of intensity in resonance light scattering (RLS) spectra. The theory also predicts the value of the depolariza...

Auxiliary Material for Paper 2010GL045896 Disentangling chlorophyll fluorescence from atmospheric scattering effects in O2A-band spectra of reflected sun-light

We perform a retrieval simulation on (1) how the fluorescence emission F s affects the retrieval of surface and scattering parameters from space-based observations of the O2A-band and on (2) how the retrieval of such parameters can mask the fluorescence signal. Here, we consider as retrieval parameters surface pressure ps, Lambertian surface albedo r, the aerosol optical density τ (AOD in main ...