The dependence of canopy layer turbulence on within-canopy thermal stratification
نویسندگان
چکیده
منابع مشابه
The Effects of Thermal Stratification on Clustering Properties of Canopy Turbulence
The intermittent structure of turbulence within the canopy sublayer (CSL) is sensitive to the presence of foliage and to the atmospheric stability regime. Howmuch of this intermittency originates from amplitude variability or clustering properties remains a vexing research problem for CSL flows. Using a five-level set of measurements collected within a dense hardwood canopy, the clustering prop...
متن کاملA two-layer canopy with thermal inertia
I. Gouttevin, M. Lehning, T. Jonas, D. Gustafsson, and M. Mölder IRSTEA, Unité de Recherche Hydrologie-Hydraulique, 5 rue de la Doua, CS 70077, 69626 Villeurbanne CEDEX, France CRYOS, School of Architecture, Civil and Environmental Engineering, EPFL, Lausanne, Switzerland WSL Institute for Snow and Avalanche Research SLF, Flüelastrasse 11, 7260 Davos Dorf, Switzerland KTH, Department of Land an...
متن کاملThe effects of forest canopy shading and turbulence on boundary layer ozone
The chemistry of the Earth's atmosphere close to the surface is known to be strongly influenced by vegetation. However, two critical aspects of the forest environment have been neglected in the description of the large-scale influence of forests on air pollution: the reduction of photolysis reaction rates and the modification of vertical transport due to the presence of foliage. Here we show th...
متن کاملTurbulence structure above a vegetation canopy
We compare the turbulence statistics of the canopy/roughness sublayer (RSL) and the inertial sublayer (ISL) above. In the RSL the turbulence is more coherent and more efficient at transporting momentum and scalars and in most ways resembles a turbulent mixing layer rather than a boundary layer. To understand these differences we analyse a large-eddy simulation of the flow above and within a veg...
متن کاملAmmonia exchange potential within a grass canopy
Vertical structure and diurnal variability of ammonia exchange potential within an intensively managed grass canopy B. Herrmann, M. Mattsson, S. Jones, P. Cellier, C. Milford, M. A. Sutton, J. K. Schjoerring, and A. Neftel Agroscope Reckenholz-Tänikon Research Station ART, Zürich, Switzerland Plant and Soil Science Laboratory, Faculty of Life Sciences, University of Copenhagen, Copenhagen, Denm...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Agricultural and Forest Meteorology
سال: 1992
ISSN: 0168-1923
DOI: 10.1016/0168-1923(92)90064-b