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Impacts of forest inhomogeneities in edge flow: a momentum and turbulent kinetic energy budget analysis

hal.structure.identifierInteractions Sol Plante Atmosphère [UMR ISPA]
dc.contributor.authorBOUDREAULT, Louis-Etienne
hal.structure.identifierInteractions Sol Plante Atmosphère [UMR ISPA]
dc.contributor.authorDUPONT, Sylvain
dc.date.accessioned2024-04-08T11:56:04Z
dc.date.available2024-04-08T11:56:04Z
dc.date.issued2016
dc.date.conference2016-06-20
dc.identifier.urihttps://oskar-bordeaux.fr/handle/20.500.12278/195734
dc.description.abstractEnForest landscapes are often characterized by multiple forest edges modifying the airflow exchanges with the atmosphere. Most of our knowledge on edge flow comes from numerical and wind tunnel experiments from which the canopy was approximated horizontally homogeneous. To investigate the impacts of tree-scale inhomogeneities on the wind dynamics along a forest edge, large-eddy simulations have been performed over inhomogeneous canopies. The three-dimensional forest structure is prescribed in the model from high resolution helicopter-based LiDAR scans of the Falster island forest in Denmark. Several simulations were performed to study the effect of different spatial configurations of the canopy structure on the flow. The simulations show that inhomogeneities induce significant dispersive fluxes at the forest leading-edge. These fluxes result from the spatial-variability of the flow as it penetrates through the sparsest regions of the edge. We show how the inhomogeneities change the momentum and energy transfers along the edge by performing a detailed momentum and turbulent kinetic energy budget analysis. The magnitude of the dispersive fluxes is then compared following the degree of inhomogeneities of the canopy.
dc.language.isoen
dc.title.enImpacts of forest inhomogeneities in edge flow: a momentum and turbulent kinetic energy budget analysis
dc.typeAutre communication scientifique (congrès sans actes - poster - séminaire...)
dc.subject.halSciences de l'environnement/Milieux et Changements globaux
bordeaux.hal.laboratoriesInteractions Soil Plant Atmosphere (ISPA) - UMR 1391*
bordeaux.institutionBordeaux Sciences Agro
bordeaux.institutionINRAE
bordeaux.conference.title22. Symposium on Boundary Layers and Turbulence
bordeaux.countryUS
bordeaux.conference.citySalt Lake City
bordeaux.peerReviewedoui
hal.identifierhal-02792336
hal.version1
hal.invitednon
hal.conference.organizerAmerican Meteorological Society (AMS). USA.
hal.conference.end2016-06-24
hal.popularnon
hal.audienceInternationale
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-02792336v1
bordeaux.COinSctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.date=2016&rft.au=BOUDREAULT,%20Louis-Etienne&DUPONT,%20Sylvain&rft.genre=conference


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