Analysis and modelling of turbulent fluxes in two different ecosystems in Argentina
by Ana Graciela Ulke; Natalia Noemí Gattinoni; Gabriela Posse
International Journal of Environment and Pollution (IJEP), Vol. 58, No. 1/2, 2015

Abstract: Turbulence data measured with fast response instruments at two sites with distinct conditions were available. The ability of a mesoscale model in the simulation of turbulent fluxes and boundary layer height was assessed in case studies covering periods in the Southern Hemisphere summer and winter. The energy apportionment at both locations was properly reproduced. In summer, at the site with native forest, the sensible heat flux was well estimated and the latent heat flux was underestimated. At the other site (commercial plantation) the sensible heat flux was properly represented and the latent heat flux was slightly overestimated. In winter, the best results were obtained at the implanted forest site. The performance of the model at the native forest site was very satisfactory when homogeneous initial soil moisture was considered. A model intercomparison between the boundary layer height obtained with an analytical model and the mesoscale model showed the influence of data and methodologies used in the two approaches.

Online publication date: Mon, 16-May-2016

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