D.R. Roberti, G.A. Degrazia H.F. de Campos Velho (2002): New Formulation for the Counter-Gradient Term and Numerical Procedure for its Identification, Brazilian Congress on Meteorology (CBMet-2002), 04-07 August, Foz do Iguacu (PR), Brazil.

Abstract: A new formulation for the counter-gradient is presented, where the scale of the mean quantity is taken as the average on the entire convective boundary layer of this quantity. An inverse analysis is also used to identify the counter-gradient term. The inverse solution is performed minimizing an objective function: the square difference between experimental and model data added to a regularization function. Two regularization functions are used, second-order maximum entropy, and Tikhonov regularization of second-order. The inverse methodology is tested with synthetic data corruped with Gaussin noise.