نتایج جستجو برای: visual modflow model
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Abstract. In the context of changing climate and increasing water demand, large-scale hydrological models are helpful for understanding projecting future resources across scales. Groundwater is a critical freshwater resource strongly controls river flow throughout year. It also essential ecosystems contributes to evapotranspiration, resulting in feedback. However, groundwater systems worldwide ...
Quantifying the spatiotemporal variations of basin-scale surface water (SW)–groundwater (GW) interactions is vital for conjunctive management resources in basin. In this study, an integrated hydrological model (SWAT-MODFLOW) used to simulate SW–GW system Huashan Basin. The numerical was calibrated and validated using streamflow observations watershed outlet groundwater levels long-term monitori...
Soil and water conservation measures can impact hydrological cycle, but quantitative analysis of this impact is still difficult in a watershed scale. To assess the effect quantitatively, a three-dimensional finite-difference groundwater flow model (MODFLOW) with a surface runoff model-the Soil Conservation Service (SCS) were calibrated and applied based on the artificial rainfall experiments. T...
This work develops a rule curve-based conjunctive use management model for optimizing the operating rules for a lake–groundwater system with off-stream storage lakes. The proposed procedure is a simulation-optimization approach that embeds an Artificial Neural Network (ANN) instead of a groundwater numerical model into a genetic algorithm (GA). The direct physical exchange between lake water wi...
Exercise 3.2d: Calculate weights on hydraulic-head and flow observations For the head observations, first calculate the total variance of measurement error for the head observations, by adding the variance for the elevation measurement and the variance for the water-level measurement. This total variance is 1.0025 m, as shown in Table 3.2. Then, calculate the weight as the inverse of this varia...
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