image
 

The DART model (Discrete Anisotropic Radiative Transfer)

image

 

 




image

 

For any questions or comments
on this mission, please contact :
 Jean-Philippe.Gastellu-Etchegorry
© Copyright 2014 CESBIO, 
Tous droits réservés

Context

The study of the functioning of terrestrial surfaces involves understanding the energy and biophysical mechanisms that affect these surfaces. For example, radiation in the visible spectral range that is absorbed by plants drives their photosynthetic activity. By its ability of synoptic observation at various scales of time and space, satellite/plane remote sensing is a necessary and unique tool for the study and monitoring of terrestrial surfaces.

A usual approach is to translate remote sensing measurements in terms of relevant biophysical quantities: landscape and local albedo, vegetation characteristics (leaf area, vegetative stage,...), etc. This translation is performed by the so-called remote sensing models that simulate remote sensing measurements. In practice, it is not reliable enough, because most existing models are too imprecise due to the strong simplifications of their physico-mathematical methods and their simulation of Earth surfaces and atmosphere. The DART model avoids these simplifications.

image

 

 
     
  site map sitemap webmaster webmastre crédit credit Copyright 2010 CESBIO, Tous droits réservé