This paper reviews research on beach groundwater dynamics and identifies research
questions which will need to be answered before swash zone sediment transport and beach …

Subsurface environments contain a large proportion of planetary microbial biomass and
harbor diverse communities responsible for mediating biogeochemical cycles important to …

The HYDRUS numerical models are widely used for simulating water flow and solute
transport in variably saturated soils and groundwater. Applications involve a broad range of …

Tamarix spp.(saltcedar) secretes salts and has been considered to be a major factor
contributing to the salinization of river terraces in western US riparian zones. However …

The migration of volatile organic compounds (VOCs) from groundwater is an environmental
concern because of the risk of vapor intrusion. In coastal aquifers or areas under the …

Groundwater models that simulate only saturated flow use groundwater recharge as an
input parameter. In contrast, variably saturated subsurface flow models, including integrated …

Biosolids are an important resource for agricultural practice but have recently received
increased focus as a potential source of per-and polyfluoroalkyl substances (PFAS) in the …

Transit times through hydrologic systems vary in time, but the nature of that variability is not
well understood. Transit times variability was investigated in a 1 m3 sloping lysimeter …

Hydrologic and water quality models are used to help manage water resources by
investigating the effects of climate, land use, land management, and water management on …

The capillary zone plays a crucial role in migration and transformation of pollutants. Light
nonaqueous liquids (LNAPLs) have become the main organic pollutant in soil and …