Abstract Aquitards are common hydrogeological features in the subsurface. Typically, pumping tests used to parameterize hydraulic conductivity of heterogeneous aquitards. However, they do not take spatial variability and uncertainty into account. Alternatively, core-scale measurements geostatistical upscaling methods, for which their correlation lengths needed, but this information is extremely...

In alluvial coastal aquifers, finer sediments are preferentially deposited along the downstream direction, so the hydraulic conductivity is generally heterogeneous and changes with distance from the coastline. To investigate the influence of aquifer heterogeneity on seawater-groundwater interaction, a new two-dimensional model characterising groundwater flow in an aquiferaquitard system was dev...

A sharp interface numerical model is developed to simulate saltwater intrusion in multilayered coastal aquifer systems. The model takes into account the flow dynamics of salt water and fresh water assuming a sharp interface between the two liquids. In contrast to previous two-fluid flow models which were formulated using the hydraulic heads of fresh water and salt water as the dependent variabl...

The mechanism and kinetics of the spontaneous decomposition of 2,2-bis(bromomethyl)propan-1,3-diol (DBNPG) and its decomposition daughter products were determined in aqueous solution at a temperatures range between 30 and 70 degrees C and pH from 7.0 to 9.5. DBNPG decomposition in basic aqueous solutions involves release of bromide ions through a sequential formation of 3-bromomethyl-3-hydroxym...

Concepts and terms used in previous multidisciplinary studies of tile-drained aquitard-dominated catchments (TDADC) are inconsistent confusing. We provide a well-defined, comprehensive conceptual model the subsurface hydrology TDADC by selecting seven mutually compatible consistent concepts. These concepts are: (1) groundwater as main source baseflow headwater streams, (2) dominance ‘pre-event’...

Hydrate-bearing sediments are a potential source of energy. Depressurization is the preferred production method in mechanically stable and highly permeable sandy reservoirs. The goal this study to develop closed-form analytical solutions for multi-well depressurization strategies explore synergistic interactions among wells. key variables aquitard sediment permeabilities, reservoir layer thickn...

Groundwater extraction rates exceeding recharge are occurring throughout Iran to sustain industrial and agricultural activities, resulting in land deformation many areas, particularly the Yazd-Ardakan Plain (YAP) central Iran's dry desert regions. In this study, Interferometric Synthetic Aperture Radar (InSAR) time series analysis statistical models applied characterize controls on subsidence Y...