A Eulerian-Lagrangian canopy microclimate model wasdeveloped with the aim of discerning
physical frombiophysical controls of CO 2 and H 2 O fluxes. The model couples radiation
attenuation with mass, energy, and momentum exchange at different canopylevels. A unique
feature of the model is its abilityto combine higher order Eulerian closure approachesthat
compute velocity statistics with Lagrangianscalar dispersion approaches within the canopy
volume. Explicit accounting for within-canopy CO 2, H 2 O, and heat storage is resolved by …

A Eulerian-Lagrangian canopy microclimate model was developed with the aim of
discerning physical from biophysical controls of CO2 and H2O fluxes. The model couples
radiation attenuation with mass, energy, and momentum exchange at different canopy
levels. A unique feature of the model is its ability to combine higher order Eulerian closure
approaches that compute velocity statistics with Lagrangian scalar dispersion approaches
within the canopy volume. Explicit accounting for within-canopy CO2, H2O, and heat storage …