搜索结果: 1-15 共查到“水文学 Aquifers”相关记录24条 . 查询时间(0.232 秒)
Spatial Variability and Prediction Modeling of Groundwater Arsenic Distributions in the Shallowest Alluvial Aquifers in Bangladesh
Arsenic Bangladesh distribution spatial variability semivariogram prediction models
2015/8/13
Elevated arsenic in groundwater is the greatest environmental problem in Bangladesh. Spatial variability of arsenic in groundwater has been examined by semivariogram analysis that revealed high degree...
Estimation of aquifer hydraulic characteristics from electrical sounding data: the case of middle Imo River basin aquifers, south- eastern Nigeria
Aquifer hydraulic characteristics Dar - Zarrouk parameters
2015/8/11
We have used the concept of Da - Zarrouk parameters (transverse unit resistance (R) and longitudinal conductance (C)) in porous media to determine aquifer hydraulic characteristics within the middle I...
Diffused Interface Model to Prevent Ingress of Sea Water in Multi-Layer Coastal Aquifers
Diffused Interface Model Ingress Sea Water
2015/8/6
In many regions coastal aquifers are major source of supply of water to various sectors. However, indiscriminate pumping from these aquifers leads to seawater intrusion which is difficult to contain. ...
Characterization of extractable metals from the aquifers with arsenic contamination in the Tsengwen Creek, Taiwan
BCR sequential extraction procedure groundwater hydrochemistry sediment geochemistry
2015/3/10
Arsenic contamination in groundwater is a common groundwater problem worldwide. To manage groundwater resources effectively, it is crucial to determine the arsenic source. Taiwan’s Tsengwen Creek wate...
Spatial Variability and Prediction Modeling of Groundwater Arsenic Distributions in the Shallowest Alluvial Aquifers in Bangladesh
Arsenic Bangladesh distribution
2015/1/7
Elevated arsenic in groundwater is the greatest environmental problem in Bangladesh. Spatial variability of arsenic in groundwater has been examined by semivariogram analysis that revealed high degree...
Estimation of aquifer hydraulic characteristics from electrical sounding data: the case of middle Imo River basin aquifers, south- eastern Nigeria
Dar - Zarrouk parameters Resistivity Imo River Basin Nigeria
2015/1/6
We have used the concept of Da - Zarrouk parameters (transverse unit resistance (R) and longitudinal conductance (C)) in porous media to determine aquifer hydraulic characteristics within the middle I...
Diffused Interface Model to Prevent Ingress of Sea Water in Multi-Layer Coastal Aquifers
Diffused Interface Model Ingress Sea Water Multi-Layer Coastal Aquifers Aquifers water seawater hydrodynamic freshwater intrusion model
2015/1/4
In many regions coastal aquifers are major source of supply of water to various sectors. However, indiscriminate pumping from these aquifers leads to seawater intrusion which is difficult to contain. ...
Investigation of a parameter estimation method for contaminant transport in aquifers
Investigation parameter estimation method contaminant transport aquifers
2009/12/4
Real world groundwater aquifers are heterogeneous and system variables are not uniformly distributed across the aquifer. Therefore, in the modelling of the contaminant transport, we need to consider t...
When a test pumping from an artesian aquifer has been performed, the result
will often exibit a more or less confusing variety of features. The reason for
this may, of course, be that the geological...
The Physics of Long Term Drawdowns in Pumping from Artesian Aquifers
Physics Long Term Drawdowns Artesian Aquifers
2009/10/29
The applicability of the Theis-formula (1935) and the Jacob-Hantush leakageformula
(1946 and 1956) as tools for the description of water-level variations
due to pumping from artesian aquifers, is sh...
Drawdowns at the Free Water Table During Pumping Tests in Artesian and Semiarteian Aquifers
Free Water Table Pumping Tests Artesian Semiarteian Aquifers
2009/10/28
In an earlier paper I have shown an example of how long term drawdowns can
be used for the computation of long term storage in artesian and semiartesian
areas. In most cases the long term storage is...
Breaks in Resistivity Sounding Curves as Indicators of Hard Rock Aquifers
Resistivity Sounding Curves Hard Rock Aquifers
2009/10/28
In a previous paper (Nordic Hydrology, Vol. 12, 1981), the authors have
discussed the inadequacies in the technique of resistivity method for location
of sites for constructing deep water walls in h...
Finite Element Analysis of Square Aquifers Containing Pumped Wells and Comparison with Finite Difference Method
Finite Element Analysis Square Aquifers Pumped Wells
2009/10/28
The numerical solution of the behaviour of discrete time steps in digital computer
analysis of square aquifers containing pumped wells is examined by
using the finite element method with a 4 node li...
Unsteady Flow to a Non-Penetrating Well in Extensive Aquifers
Unsteady Flow Non-Penetrating Well Extensive Aquifers
2009/10/27
The unsteady drawdown distribution around a non-penetrating well discharging
from an extensively thick confined aquifer has been obtained. The solution
is expressed in terms of dimensionless time fa...
Digital Simulation Model for Brine Coning in Unconfined Anisotropic Aquifers
Digital Simulation Model Unconfined Anisotropic Aquifers
2009/10/27
A digital simulation model has been presented for locating the steady state
stable brine cone position beneath partially penetrating wells tapping from the
fresh water zone overlying a saline zone i...