نتایج جستجو برای: the groundwater hydrograph

تعداد نتایج: 16061095  

Journal: :Water Resources Research 2022

Sand (i.e., < 2 mm) infiltration into a gravel bed is recognized to affect sediment dynamics of coarser fractions entrainment and transport rate), near-bed velocities, morphology, pose significant engineering ecological issues. Local hydraulics, dynamics, sand the matrix are related mutually each other in gravel-bed rivers. However, relatively little research has been done explore mobile under ...

Journal: :Journal of the Faculty of Agriculture, Kyushu University 2001

Journal: :Environmental Earth Sciences 2021

Abstract Mountain springs represent one of the largest and most precious sources potable water in Italy, necessary to meet needs population. Optimizing present future management strategies mountain groundwater resources has become increasingly necessary. The accuracy frequency flow rate ( Q ) measurements determine restrict processes that can be studied using spring hydrograph recession curve a...

ژورنال: علوم آب و خاک 2018

Depletion and consequently reduction in groundwater storage results in numerous harmful environmental effects such as reduction in yields of wells, land subsidence, lowering of water quality and also reduction in storage of surface water bodies having hydraulic relation with aquifers. In this research, groundwater depletion in the Najafabad subcatchment aquifer located in the GavKhouni basin, I...

Journal: :iranian journal of earth science 0
shayan ghodratabadi young researchers and elite club, south tehran branch, islamic azad university, tehran iran faranak feizi mining engineering dept., south tehran branch, islamic azad university, tehran iran

water plays a vital role in the development of activities in an area. the surface water resources are inadequate to fulfill the water demand. productivity through groundwater is quite high as compared to surface water, but groundwater resources have not yet been properly exploited. keeping this view, the present study attempts to select and delineate various groundwater potential zones for the ...

In this paper, we present an application of evolved neural networks using a real coded genetic algorithm for simulations of monthly groundwater levels in a coastal aquifer located in the Shabestar Plain, Iran. After initializing the model with groundwater elevations observed at a given time, the developed hybrid genetic algorithm-back propagation (GA-BP) should be able to reproduce groundwater ...

Journal: :E3S web of conferences 2023

In this study, an Artificial Viscosity (AV) technique was developed for direct runoff calculation, instead of using the conventional Synthetic Unit Hydrograph (SUH) methods. We solved Shallow Water Equations (SWE) with second-order accurate Godunov finite volume model and fourth-order Runge-Kutta explicit scheme. The AV devised a Laplacian biharmonic operator, employed to solve convective terms...

ژورنال: سلامت و محیط زیست 2018

Background and Objective: Groundwater resources are very important for the survival of living beings. Hence, groundwater modeling has a special importance in water management and planning of each region .In this study, numerically simulation of Hamedan–Bahar aquifer flow path was done by GMS software using geological, hydraulic and hydrologic information. Materials and Methods: First, a 3D hyd...

ژورنال: آبخیزداری ایران 2019

Due to groundwater overextraction, during the recent years, Malekan plain aquifer has been faced to a risk of increasing salination. The groundwater flow model of the plain was designed, invesitagion of groundwater flow regime and precise hydraulic parameters estimation, utilizing the various method such as  geological surveys, tomography methods, hydrochemical analysis and simulation of aquife...

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