Leaf RTMs

PROSPECT models

PROSPECT is a leaf optical model that simulates directional–hemispherical reflectance and transmittance of various green monocotyledon and dicotyledon species, as well as senescent leaves, over the solar spectrum from 400 nm to 2500 nm.

PROSPECT input window.

LIBERTY

LIBERTY (Leaf Incorporating Biochemistry Exhibiting Reflectance and Transmittance Yields) specifically calculates the optical properties of both dried and fresh conifer (particularly pine) needles (Dawson et al., 1998).

ARTMO's LIBERTY input window.

DLM

The dorsiventral leaf radiative transfer model (DLM) v.2.10 (Stuckens et al., 2009) is a PROSPECT-like leaf optical model with a stochastic distribution of different groups of layers. Leaf asymmetry was modeled by assigning non-uniform distributions of pigments, water and dry matter to palisade and mesophyll layers and by simulating different amounts of light diffusion for adaxially and abaxially incident light.

ARTMO's DKLM input window.

Fluspect

The Fluspect-B model (generally referred to as Fluspect) simulates leaf chlorophyll fluorescence (ChlF), reflectance and transmittance spectra. The existing PROSPECT model and its concept of a compact leaf are used as a starting point, and the differential equations for radiative transfer within theleaf are solved by an efficient doubling algorithm (Vilfan et al., 2016).

Fluspect-B-Cx is and extension of Fluspect-B (Vilfan et al., 2018). This model contains a parameter for the Xanthophyll de-epoxydation status, the specific absorption coefficients of PROSPECT-D, and a re-calibrated fluorescence emission spectrum ('phi').