A Simple Model for Leaf Optical Properties in Visible and Near-Infrared: Application to the Analysis of Spectral Shifts Determinism
A simple model of leaf optical properties spectra is derived from experimental measurements of leaf characteristics. It allows to simulate reflectance and transmittance spectra of the leaf depending on it’s chlorophyll concentration and leaf mesophyll structure.
This model is used to generate relationships between chlorophyll concentration, leaf mesophyll structure and spectral shifts in the red edge. Results shows that an increase in chlorophyll concentration induces spectral shifts towards longer wavebands. But the effect of leaf mesophyll structure is significant, particularly for high chlorophyll concentration.
Key WordsRemote Sensing Reflectance Transmittance Leaf Chlorophyll Model Spectral-shift High spectral resolution
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