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Effect of sharp vegetation boundary on the convective atmospheric boundary layer
Journal article   Peer reviewed

Effect of sharp vegetation boundary on the convective atmospheric boundary layer

I.N. Esau and T.J. Lyons
Agricultural and Forest Meteorology, Vol.114(1-2), pp.3-13
2002
DOI: https://doi.org/10.1016/S0168-1923(02)00154-5
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Abstract

An abrupt change of turbulent fluxes and cloud formation were found during the Bunny Fence experiment in the southwestern Australia at a sharp boundary between agricultural and native vegetation. It is suggested that this is a direct consequence of distinct coherent structures formed within atmospheric sheared convective boundary layers. Using large-eddy simulations (LES), it was found that a boundary-attached roll circulation appears at the sharp vegetation boundary. Model calculations revealed significant horizontal heat and moisture flux from the agricultural to the native vegetation area. The additional moisture flux may explain the observed increased cloud formation over the native vegetation as well as contribute to increased rainfall over the native vegetation.

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Collaboration types
Domestic collaboration
International collaboration
Citation topics
8 Earth Sciences
8.19 Oceanography, Meteorology & Atmospheric Sciences
8.19.743 Urban Heat Island
Web Of Science research areas
Agronomy
Forestry
Meteorology & Atmospheric Sciences
ESI research areas
Agricultural Sciences
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