This research was conducted to develop relationships among evapotranspiration (ET), percolation (PERC), groundwater discharge to the stream (GWQ), and water table fluctuations through a modeling approach. The Soil and Water Assessment Tool (SWAT) hydrologic and crop models were applied in the Big Sunflower River watershed (BSRW; 7660 km(2) ) within the Yazoo River Basin of the Lower Mississippi...

The increasing water problems and eco-environmental issues of Heihe River basin have attracted widespread attention. In this research, the VIC (Variable Infiltration Capacity) model was selected to simulate the water cycle of the upstream in Heihe River basin. The GLUE (Generalized Likelihood Uncertainty Estimation) method was used to study the sensitivity of the model parameters and the uncert...

Developing reliable estimates of streamflow prediction are crucial for water resources management and flood forecasting purposes. The objectives of this study are to investigate the potential of support vector machines (SVM) model for streamflow forecasting at ungaged sites, and to compare its performance with other statistical method of multiple linear regression (MLR). Three quantitative stan...

Abstract Precipitation forecast is key for water resources management in semi-arid climates. The traditional hybrid models simulate linear and nonlinear components of precipitation series separately. But they do not still provide accurate forecasts. This research aims to improve by using an ensemble models. Preprocessing configurations each the Gene Expression Programming (GEP), Support Vector ...

in iran’s system of tripartite collective bargaining, does the wage-policy maker consistently react optimally to the best move made by the exchange rate-policy maker (nash-rule) or only to the state of economy (non-nash rule)?. this paper not only investigates the nature of the political game (nash rule against non-nash rule) but also estimates some structural parameters by using 2sls method an...

The study of the hydric regime rainfall helps in management analysis and decision-making hydrographic basins, but a fundamental condition is need for continuous time series data. Therefore, this compared gap filling methods precipitation data validated them using robust statistical techniques. Precipitation from municipality Itirapina, which has four monitoring stations, were used. Four techniq...

Abstract. Agricultural drought mainly stems from reduced soil moisture and precipitation, it causes adverse impacts on the growth of crops vegetation, thereby affecting agricultural production food security. In order to develop mitigation measures, reliable forecasting is essential. this study, we developed an model based canonical vine copulas in three dimensions (3C-vine model) which antecede...