Assessing measurement uncertainty of first-order degradation rates in heterogeneous aquifers

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...

Calibrating measurement uncertainty in purchasing power parity exchange rates

Assessing Vulenerabilty of Karstic Aquifers in Kermanshah Plain and Bistoon-Parao Mass Using COP Model

Vulnerability assessment and mapping of hazard pollution is raised on as an important management strategy to protect the karst. Karstic aquifers in semi-arid regions of the West of Iran with regard to the natural conditions of the region, are susceptible to contamination. Estimation of amount and vulnerability mapping of aquifers in the karst religion of Bistoun- Paraw – Kermanshah plain agains...

First Order Dependence on Uncertainty Sets in Robust Optimization

We show that a rst order problem can approximate solutions of a robust optimization problem when the uncertainty set is scaled, and explore further properties of this rst order problem.

Adaptive-grid simulation of groundwater ̄ow in heterogeneous aquifers

The prediction of contaminant transport in porous media requires the computation of the ̄ow velocity. This work presents a methodology for high-accuracy computation of ̄ow in a heterogeneous isotropic formation, employing a dual̄ow formulation and adaptive gridding. The dual equations, describing the hydraulic head and the streamfunction, are numerically solved through ®nite element approximations...