In spite of trying to understand processes in the same spatial domain, the catchment
hydrology and water quality scientific communities are relatively disconnected and so are …

Protecting or restoring aquatic ecosystems in the face of growing anthropogenic pressures
requires an understanding of hydrological and biogeochemical functioning across multiple …

Mathematical models of varying complexity have been developed since the 1960s to
interpret environmental tracer concentrations in groundwater flow systems. This review …

Heterogeneity across a broad range of scales in geologic porous media often manifests in
observations of non-Fickian or anomalous transport. While traditional anomalous transport …

Changes in the spatial distribution and flow-paths of water in a high-mountain, headwaters
watershed are evaluated using an integrated hydrologic model based on a heterogeneous …

This review presents the physical mechanisms generating residence time distributions
(RTDs) in hydrologic systems with a focus on steady-state analytical solutions. Steady-state …

Water age is a fundamental descriptor of the source, storage, and mixing of water in
watersheds. The Lagrangian, particle tracking, approach is a powerful tool for physically …

Streamwater transit time distributions display a variable proportion of old waters (≥ 1 year).
We hypothesize that the corresponding long transit times result from groundwater …

Non‐uniqueness in groundwater model calibration is a primary source of uncertainty in
groundwater flow and transport predictions. In this study, we investigate the ability of …

We investigated how geomorphological structures shape Transit Time Distributions (TTDs)
in shallow aquifers. Extensive three‐dimensional simulations were performed to determine …