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Title: Modeling dynamic behavior of leaf temperature at three-dimensional positions to step variations in air temperature and light
Authors: Boonen, Cindy
Joniaux, O
Janssens, K
Berckmans, Daniel
Lemeur, R
Kharoubi, A
Pien, H #
Issue Date: Nov-2000
Publisher: Amer soc agricultural engineers
Series Title: Transactions of the ASAE vol:43 issue:6 pages:1755-1766
Abstract: Organisms such as plants grow as a result of the influence of their generics and microenvironment, consisting of physical, chemical, and biological factors. The microenvironment or microclimate is the environment closely surrounding these organisms and varies in time and space. To control processes more optimally, it is necessary to understand how living organisms respond dynamically to their physical microenvironment. Most models being developed to explain this relationship through steady-state models are descriptive (deterministic) and too complex to be used for control purposes. Therefore, it is attempted in this work to develop a dynamic black box model. For this study only air temperature was considered in 3-D (three dimensions). The objective of this research was to model the dynamic response of leaf temperature to time variations in air temperature closely surrounding that leaf and to light-dark alterations. This biosystem is modeled using an ARX model structure (black box). Three-dimensional gradients in air temperature around the plans were shown and analyzed. It is demonstrated that a complex process such as the response of leaf temperature to changes in 3-D ambient air temperature and light-dark alterations can be modeled with a mean 1-2 between 92.7% and 99.9%.
URI: 
ISSN: 2151-0032
Publication status: published
KU Leuven publication type: IT
Appears in Collections:Division M3-BIORES: Measure, Model & Manage Bioresponses (-)
# (joint) last author

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