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Now showing items 41-50 of 77
A copula-based precipitation forecasting model: Investigating the interdecadal modulation of ENSO’s impacts on monthly precipitation
(2014-01-14)
The influence of two large-scale circulation patterns (the El Niño Southern Oscillation (ENSO) and the Pacific Decadal Oscillation (PDO)), and the effect of the interdecadal modulation of ENSO on precipitation in the state ...
Numerical Solution of Fractional Advection-Dispersion Equation
(2004-05-01)
Numerical schemes and stability criteria are developed for solution of the one-dimensional fractional advection-dispersion equation (FRADE) derived by revising Fick’s first law. Employing 74 sets of dye test data measured ...
Predicting Longitudinal Dispersion Coefficient in Natural Streams by Artificial Neural Network
(2005-11-01)
An artificial neural network (ANN) model was developed to predict the longitudinal dispersion coefficient in natural streams and rivers. The hydraulic variables [flow discharge (Q), flow depth (H), flow velocity (U), shear ...
Sediment Graphs Based on Entropy Theory
(2014-08-20)
Using the entropy theory, this paper derives an instantaneous unit sediment graph (IUSG or USG) to determine sediment discharge and the relation between sediment yield and runoff volume. The derivation of IUSG requires an ...
Entropy theory-based criterion for hydrometric network evaluation and design: Maximum information minimum redundancy
(American Geophysical Union, 2012)
Hydrometric information constitutes the fundamental input for planning, design, operation, and management of water resources systems. How to optimally site monitoring gauges such that they are effective and efficient in ...
Monthly river flow simulation with a joint conditional density estimation network
(American Geophysical Union, 2013)
River flow synthesizing and downscaling are required for the analysis of risks associated with water resources management plans and for regional impact studies of climate change. This paper presents a probabilistic model ...
Entropy theory for movement of moisture in soils
(American Geophysical Union, 2010)
An entropy theory is formulated for one‐dimensional movement of moisture in unsaturated soils in the vertically downward direction. The theory is composed of five parts: (1) Tsallis entropy, (2) principle of maximum entropy, ...
Single-site monthly streamflow simulation using entropy theory
(American Geophysical Union, 2011)
Using entropy theory, a new method for single-site monthly streamflow simulation is developed, which is capable of preserving mean, standard deviation, skewness, and lag-one correlation. The method entails deriving joint ...
Entropy-copula method for single-site monthly streamflow simulation
(American Geophysical Union, 2012)
An entropy-copula method is proposed for single-site monthly streamflow simulation. In this method, the joint distribution of adjacent monthly streamflows is constructed using the copula method, whereas the marginal ...
Case Study: Finite Element Method and Artificial Neural Network Models for Flow through Jeziorsko Earthfill Dam in Poland
(2005-06-01)
A finite element method (FEM) and an artificial neural network (ANN) model were developed to simulate flow through
Jeziorsko earthfill dam in Poland. The developed FEM is capable of simulating two-dimensional unsteady and ...