Water stable isotopes (18O and 2H) are widely used as ideal tracers to track water through
the soil and to separate evaporation from transpiration. Due to the technical developments in …

The Pacific Northwest encompasses a range of hydrologic regimes that can be broadly
characterized as either coastal (where rain and rain on snow are dominant) or interior …

The age, or residence time, of water is a fundamental descriptor of catchment hydrology,
revealing information about the storage, flow pathways, and source of water in a single …

A geomorphic transport law is a mathematical statement derived from a physical principle or
mechanism, which expresses the mass flux or erosion caused by one or more processes in …

The role of fluid residence time and catchment length scales in controlling the chemical
composition of rivers is evaluated by comparing numerical simulations and scaling …

Subsurface flow from hillslopes is widely recognized as an important contributor to
streamflow generation; however, processes that control how and when hillslopes connect to …

In a headwater catchment in the Oregon Coast Range, we find that solid-phase mass losses
due to chemical weathering are equivalent in the bedrock and the soil. However, the long …

Subsurface stormflow is a dominant runoff‐producing mechanism in many upland
environments. While there have been many trench‐based experimental studies, most of …

We conducted a detailed study of subsurface flow and water table response coupled with
digital terrain analysis (DTA) of surface and subsurface features at the hillslope scale in …

Field hydrology is on the decline. Meanwhile, the need for new field‐derived insight into the
age, origin and pathway of water in the headwaters, where most runoff is generated, is more …