Auteur Kavvas, M. Levent
Documents disponibles écrits par cet auteur (14)
Affiner la recherche
Article : texte imprimé
Anderson, M. L., Auteur ; Z. Q. Chen, Auteur ; Kavvas, M. Levent ; Feldman, Arlen |The Operation of reservoirs in the Sierra Nevada mountains of California for flood control relies on forecasts of reservoir inflows. In the past, accurate forecasts of the reservoir inflows resulting from watershed runoff have been made, but onl[...]
Article : texte imprimé
Kavvas, M. Levent, Auteur |In this study is shown that in heterogeneous porous media all the ensemble average conservation equations, representing linear reactive and non reactive transport at a spatial scale one step larger than the Darcy scale, are in the same operator [...]
Article : texte imprimé
Kavvas, M. Levent, Auteur ; Kim, Sangdan, Auteur |The Fractional advection-dispersion equation (ADE) is a generalization of the classical ADE in which the second-order derivative is replaced with a fractional-order derivative. While the fractional ADE is analyzed as a stochastic process in the [...]
Article : texte imprimé
Z. Q. Chen, Auteur ; Kavvas, M. Levent, Auteur ; Yoon, J. Y., Auteur ; Dogrul, E. C. ; Fukami, K. ; Yoshitani, Junichi ; Matsura, T. |The Up scaled hydrologic conservation equations in the Watershed Environmental Hydrology (WEHY) model are capable of taking into account the effect of heterogeneity within natural watersheds. Model parameters that are capable of describing the h[...]
Périodique : texte imprimé
Kavvas, M. Levent, Éditeur scientifique ; M. M. Aral, Directeur de la recherche ; Vedat Batu, Directeur de la recherche ; Dresia, David R., Directeur de publication | New-York : American society of civil engineers | 1996-
Article : texte imprimé
Anderson, M. L., Auteur ; Z. Q. Chen, Auteur ; Kavvas, M. Levent |As a part of a study examining alternatives for flow augmentation for fall run chinook salmon migration on the cosumnes River, California, two models were constructed to simulate channel flow combined with seepage losses. The First model is a nu[...]
Article : texte imprimé
The Point location scale conservation of hydrologic processes, when viewed at the scale of computational grid areas, become stochastic partial differential equations (PDEs). For the upscaling of the point location scale conservation equations to[...]
Article : texte imprimé
Yoon, Jaeyoung, Auteur ; Kavvas, M. Levent, Auteur |In this paper, the second in a series of two, the theory developed in the companion paper is applied to the case of the stochastic overland flow equation, and a numerical solution method is presented for the resulting Fokker-Plank equation (FPE)[...]
Article : texte imprimé
Kavvas, M. Levent, Auteur ; Kim, Sangdan, Auteur ; Z. Q. Chen |A new stochastic model for one dimensional root water up take is developed with main emphasis on its probabilistic structure from random variations in saturated hydrauli conductivity. The Resulting model has the form of a two dimensional Fokker [...]
Article : texte imprimé
Kavvas, M. Levent, Auteur ; Kim, Sangdan, Auteur |A new stochastic point rainfall model which considers the correlation structure between rain cell intensity and duration is developed. In order to consider the positive and negative correlations simultaneously. The Gumbel's Type-II bivariate dis[...]
Article : texte imprimé
Kavvas, M. Levent, Auteur ; Kim, Sangdan, Auteur ; Yoon, Jaeyoung |A new stochastic model for one dimensional unsaturated water flow is proposed with focus on its probabilistic structure resulting from random variatiobns in saturated hydraulic conductivity. The newly developed model has the form of a Fokker Pla[...]
Article : texte imprimé
Kavvas, M. Levent, Auteur ; Reuter, J. ; Anderson, M. L. ; Aksoy, H. ; Ohara, N. ; Dogrul, E. C. ; Liang, L. ; Z. Q. Chen ; Yoon, J. Y., Auteur ; Hackley, S. |A newly developed watershed environmental hydrology (WEHY) model is presented as a state-of-the-art nonpoint source (NPS) model. The model consists of hydrologic and environmental modules, and describes environmentally relevant hydrologic proces[...]
Article : texte imprimé
Kavvas, M. Levent, Auteur ; Z. Q. Chen, Auteur ; Anderson, M. L. ; Fukami, K. ; Yoshitani, Junichi ; Aksoy, H. ; Liang, L. ; Ohara, N. ; Yoon, J. Y. ; Dogrul, C., Auteur ; Matsura, T. |The Watershed Environmental Hydrology model presents a new approach to the modeling of hydrologic processes in order to account for the effect of heterogeneity within natural watersheds. Toward this purpose, the point location scale conservation[...]
Article : texte imprimé
Z. Q. Chen, Auteur ; Kavvas, M. Levent, Auteur ; Matsura, T. ; Yoshitani, Junichi ; Fukami, K., Auteur |The Watershed Environmental Hydrology (WEHY) model was applied to the Shiobara Dam watershed for model validation for four historical events. Based on the analysis of the established geographic information system (GIS) database, which consists o[...]
