Understanding groundwater recharge is essential for successful management of water
resources and modeling fluid and contaminant transport within the subsurface. This book …

0 Introduction 1.1 Model Enhancements 1.2 Report Organization 1.3 Acknowledgments 2.0
Theory... 2.1 Background-Transient Storage Models 2.2 Governing Differential Equations …

The use of computational models for solving sediment transport and fate problems is
relatively recent compared with the use of physical models. Several considerations govern …

Rivers are the great shapers of terrestrial landscapes. Very few points on Earth above sea
level do not lie within a drainage basin. Even points distant from the nearest channel are …

We estimated potential changes in annual, seasonal, and high and low runoff and
associated uncertainty in the 218 sub-basins of the Willamette River basin of Oregon for the …

This study investigated potential impacts of climate change on travel disruption resulting
from road closures in two urban watersheds in the Portland, Oregon, metropolitan area. We …

The stream tracer technique has been widely used as a method of characterizing hyporheic
exchange in stream-catchment studies, commonly incorporating the use of the numerical …

Transient storage is a measure of the exchange of main channel flow with subsurface
hyporheic flow and surface water dead zones. Hyporheic flow, in which river water enters …

We present regression models for estimating the status of fish and aquatic invertebrate
communities in all second to fourth–order streams (1: 100 000 scale; total stream length …

As debates over how relative risk can be used to shape landscape-scale environmental
management intensify, Regional-Scale Risk Assessment demonstrates the capabilities of …