Non‐Fickian (or anomalous) transport of contaminants has been observed at field and
laboratory scales in a wide variety of porous and fractured geological formations. Over many …

Geological media exhibit heterogeneities in their hydraulic and chemical properties, which
can lead to enhanced spreading and mixing of the transported species and induce an …

Artificial recharge of groundwater is often used to either purify partially treated wastewater or
to enhance the quality of surface water by percolation through a variably saturated zone. In …

We investigate the upscaling of dispersion from a pore‐scale analysis of Lagrangian
velocities. A key challenge in the upscaling procedure is to relate the temporal evolution of …

Predictions of hydrologic system response to natural and anthropogenic forcing are highly
uncertain due to the heterogeneity of the land surface and subsurface. Landscape …

Spatial variability in a flow field leads to spreading of a tracer plume. The effect of
microdispersion is to smooth concentration gradients that exist in the system. The combined …

Physical and chemical heterogeneities have a large impact on reactive transport in porous
media. Examples of heterogeneous attributes affecting reactive mass transport are the …

General upscaling of density‐dependent flow is investigated for the classical two‐
dimensional Henry problem of saltwater intrusion in coastal aquifers. Combined theoretical …

Spatial patterns of land surface and subsurface characteristics often exert significant control
over hydrological processes at many scales. Recognition of the dominant controls at the …

In this study we extend the Spatial Markov model, which has been successfully used to
upscale conservative transport across a diverse range of porous media flows, to test if it can …