Behavior of Coastal Groundwater in Layered Aquifers Interbedded with Semi-permeable Layer.

Groundwater withdrawal in randomly heterogeneous coastal aquifers

We analyze the combined effects of aquifer heterogeneity and pumping operations on seawater intrusion (SWI) in coastal aquifers, a phenomenon which is threatening Mediterranean and worldwide regions. We conceptualize the aquifer as a three-dimensional randomly heterogeneous porous medium, where the spatial distribution of permeability is uncertain. The geological setting of our study is pattern...

Title Analytical studies of groundwater-head fluctuation in a coastal confined aquifer overlain by a semi-permeable layer with storage

Analytical studies are carried out to investigate groundwater head changes in a coastal aquifer system in response to tidal fluctuations. The system consists of an unconfined aquifer, a semi-confined aquifer and a semi-permeable confining unit between them. An exact analytical solution is derived to investigate the influences of both leakage and storage of the semi-permeable layer on the tide-i...

Planning groundwater development in coastal aquifers

This study examines an approach for planning groundwater development in coastal aquifers. The seawater intrusion is controlled through a series of barrier extraction wells. The multi-objective management problem is cast as a nonlinear, nonconvex combinatorial model and is solved using a coupled simulation–optimization approach. A density-dependent groundwater flow and transport model, SEAWAT is...

Management of Groundwater in Salt Water Ingress Coastal Aquifers

Groundwater whirls in heterogeneous and anisotropic layered aquifers

Groundwater flow is affected by heterogeneity in the anisotropy. Our investigations started with some simple numerical experiments consisting of one or two homogeneous anisotropic blocks. Three-dimensional pathlines in such models have the shape of spirals; bundles of spiralling pathlines were termed 'groundwater whirls'. The present research also deals with hypothetical models of stratified aq...