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Secondary Wind Speed Maxima Inside Plant Canopies
Publisher: American Meteorological Society
Abstract: It is noted that wind profiles measured in forest and crop canopies normally contain a secondary maximum or a region of very small shear beneath the level of greatest foliage density. One-dimensional models utilizing a ...
A Higher Order Closure Model for Canopy Flow
Publisher: American Meteorological Society
Abstract: The equations of motion were used to develop a one-dimensional, nonbuoyant mathematical model of air flow within vegetative canopies. The model consists of equations for mean horizontal momentum, Reynolds stress, and for ...
Structure of the Reynolds Stress in a Canopy Layer
Publisher: American Meteorological Society
Abstract: The u, w velocity covariance above and within a plant canopy (Zea mays L) was examined using the technique of quadrant analysis to separate the momentum transport into events classified as sweep, ejection, and outward and ...
Frequency of Occurrence of Fast Gusts of Wind Inside a Corn Canopy
Publisher: American Meteorological Society
Abstract: The removal from leaves of small particles such as pollen, dust or spores often requires gusts of wind having speeds that greatly exceed the mean wind speed. To determine the frequency of occurrence of such fast gusts we ...
Development of a Coupled Leaf and Canopy Model for the Simulation of Plant-Atmosphere Interaction
Publisher: American Meteorological Society
Abstract: A numerical scheme was developed to couple a multilayer canopy radiation model, a photosynthesis model for C3 species, and a leaf stomatal conductance model with a single-leaf energy balance equation. This coupled leaf and ...
Atmospheric Stability Influences on Coupled Boundary Layer and Canopy Turbulence
Publisher: American Meteorological Society
Abstract: arge-eddy simulation of atmospheric boundary layers interacting with a coupled and resolved plant canopy reveals the influence of atmospheric stability variations from neutral to free convection on canopy turbulence. The ...