bRTM

A formula specifying which rtm to run

data

a list of _named_ parameter vectors for all models.
The parameter list for a model call as rho ~ prospect + foursail
therefore contains two named vectors the first with parameters for
prospect and the second with parameters for foursail 
if left empty default parameters are generated

pars

fixed

wavelengths (in nm) add only if
certain wavelengths are required as output.
Input is expected to integers between 400 and 2500, or will 
be forced to be an integer. Integers outside the 400:2500 range
will not be returned.

Generates an invertable model for backward implementation
of Radiative Transfer Models

A set of radiative transfer models to quantitatively describe the absorption, reflectance and transmission of solar energy in vegetation, and model remotely sensed spectral signatures of vegetation at distinct spatial scales (leaf,canopy and stand). The main principle behind ccrtm is that many radiative transfer models can form a coupled chain, basically models that feed into each other in a linked chain (from leaf, to canopy, to stand, to atmosphere). It allows the simulation of spectral datasets in the solar spectrum (400-2500nm) using leaf models as PROSPECT5, 5b, and D which can be coupled with canopy models as 'FLIM', 'SAIL' and 'SAIL2'. Currently, only a simple atmospheric model ('skyl') is implemented. Jacquemoud et al 2008 provide the most comprehensive overview of these models <doi:10.1016/j.rse.2008.01.026>.

bRTM: Generates an invertable model for backward implementation of Radiative Transfer Models

Description

Usage

Arguments