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Publications [#58534] of Gabriel Katul

Papers Published

1. Siqueira, M. and Chun-Ta Lai and Katul, G., Estimating scalar sources, sinks, and fluxes in a forest canopy using Lagrangian, Eulerian, and hybrid inverse models, J. Geophys. Res. (USA), vol. 105 no. D24 (2000), pp. 29475 - 88 [2000JD900543]
   (last updated on 2007/04/09)

   Abstract:
   A new method was developed to estimate canopy sources and sinks from measured mean concentration profiles within the canopy (referred to as the “inverse” problem). The proposed method combined many of the practical advantages of the Lagrangian localized near-field (LNF) theory and higher-order Eulerian (EUL) closure principles. Particularly, this “hybrid” method successfully combined the essential conservation equations of closure modeling and the robustness of the regression source inversion developed for LNF theory. The proposed method along with LNF and EUL were tested using measurements from two field experiments collected in a pine forest and published measurements from a wind tunnel experiment. The field experiments were conducted to investigate the vertical distribution of the scalar fluxes within the canopy and the temporal patterns of the scalar fluxes above the canopy. This comparison constitutes the first “inverse method” comparison performed using the same data sets on all three models

   Keywords:
   atmospheric boundary layer;atmospheric composition;atmospheric techniques;inverse problems;