Dauzat Jean.
2004. Archimed software demonstration.
In : Proceedings of the 4th International workshop on functional-structural plant models (FSPM), abstracts of papers and posters, 7-11 June 2004, Montpellier, France. Godin Christophe (ed.), Hanan Jim (ed.), Kurth Winfried (ed.), Lacointe André (ed.), Takenaka Akio (ed.), Prusinkiewicz Przemyslaw (ed.), Dejong Thedore M. (ed.), Beveridge Christine (ed.). CIRAD-AMIS-UMR AMAP
Résumé : Archimed is a simulation software being currently wrapped within the Alea computer platform. The Archimed purpose is first to simulate radiative transfers within 3D virtual stands composed of "architectural" plant mock-ups or geometrical crown shapes. Two models are implemented, using respectively the ray-tracing and the Z-buffer methods. The ray-tracing model simulates the radiative budget of a canopy taking into account the soil directional reflectance. This model is used for simulating the canopy BRDF. The Z-buffer model outputs the irradiation of leaves and soil. These outputs can then be processed for solving energy budgets of soil-patches and leaves according to physical environmental data and an ecophysiological stomatal conductance model. Outputs are the soil-patches and leaves temperature as well as their evapotranspiration. The directional aerodynamic canopy temperature is deduced from the soil and vegetation temperature and their respective area in a virtual sensor field of view. Another integrated module allows the calculation of the photosynthesis according to the Farquhar's model coupled with the Ball-Berry stomatal model. Successive steps of simulations will be presented, including: - The plant simulation (architectural coconut mock-ups using the "lubi" program or geometrical crown shapes using the "topiary" model); - The simulation of virtual stands; - The processing of light, temperature, evapotranspiration and photosynthesis simulations on these virtual stands.
Classification Agris : U10 - Informatique, mathématiques et statistiques
F50 - Anatomie et morphologie des plantes
F62 - Physiologie végétale - Croissance et développement
F61 - Physiologie végétale - Nutrition
P40 - Météorologie et climatologie
Auteurs et affiliations
- Dauzat Jean, CIRAD-AMIS-AMAP (FRA)
Autres liens de la publication
Source : Cirad - Agritrop (https://agritrop.cirad.fr/523628/)
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