Results 61 to 70 of about 67,668 (174)

Mathematical modeling of groundwater contamination with varying velocity field

open access: yesJournal of Hydrology and Hydromechanics, 2017
In this study, analytical models for predicting groundwater contamination in isotropic and homogeneous porous formations are derived. The impact of dispersion and diffusion coefficients is included in the solution of the advection-dispersion equation ...
Das Pintu   +2 more
doaj   +1 more source

HTEM data improve 3D modelling of aquifers in Paris Basin, France [PDF]

open access: yesarXiv, 2017
In Paris Basin, we evaluate how HTEM data complement the usual borehole, geological and deep seismic data used for modelling aquifer geometries. With these traditional data, depths between ca. 50 to 300m are often relatively ill-constrained, as most boreholes lie within the first tens of meters of the underground and petroleum seismic is blind ...
arxiv  

Estimation of Groundwater Recharges Using Empirical Formulae in Odeda Local Government Area, Ogun State, Nigeria

open access: yesChallenges, 2015
Estimation and forecast of groundwater recharge and capacities of aquifers are essential issues in water resource investigation. In the current research, groundwater recharge and the recharge coefficient were determined through a case study using ...
Oluseyi O. Adeleke   +5 more
doaj   +1 more source

Author Correction: Geostatistical spatial projection of geophysical parameters for practical aquifer mapping

open access: yesScientific Reports, 2022
Jagriti Dabas   +3 more
doaj   +1 more source

Modelling and optimisation of water management in sloping coastal aquifers with seepage, extraction and recharge [PDF]

open access: yesarXiv, 2019
We consider the management of sloping, long and thin, coastal aquifers. We first develop a simple mathematical model, based on Darcy flow for porous media, which gives the water table height, and the flow velocity as a function of the underground seepage rate, the recharge rates and the extraction rates, neglecting sea water intrusion. We then validate
arxiv  

The cost of mismanaging crop heat stress with irrigation: Evidence from the mid-south USA

open access: yesAgricultural Water Management
Field level data from a voluntary water use reporting program in the Delta region of Mississippi (MS), USA, provides empirical evidence that crop growers increase the amount of groundwater pumped for irrigation during periods of high temperature (degree ...
Nicolas E. Quintana-Ashwell   +2 more
doaj  

Isotope characterization of shallow aquifers in the Horombe region, South of Madagascar [PDF]

open access: yesarXiv, 2012
The present study deals with the problem of evaluation of the recharge mechanism and the characterization of the groundwater flow system in the basement shallow aquifer, which is one of the groundwater resource in the semi-arid South region of Madagascar.
arxiv  

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