Landscape Processes
Landscape Processes
Filter Total Items: 12
Nehalem Bay Sediment Study
Assessment of Sedimentation Changes in the Nehelam Bay, Oregon
Geomorphic Response to Fall Creek Lake Drawdowns
The USGS has been documenting the geomorphic response to the annual Fall Creek Lake drawdown since 2011.
Oregon Geomorphic Studies
Assessing channel change, habitat health, and flood hazards across Oregon rivers and streams.
Vertical Hydraulic Gradient at the Sediment-Water Interface in Upper Klamath Lake
"The goal of this project is to characterize the vertical hydraulic gradient at the sediment-water interface in Upper Klamath Lake."
SPARROW Model Assessments of Nutrients and Suspended Sediment in the Pacific Northwest and California
SPARROW can be used to relate water-quality data to landscape characteristics, such as natural properties and human activities
Sediment Fingerprinting in the Upper Klamath Basin
Sediment fingerprinting has been used successfully to identify land uses that are the major sources of sediment. This study will apply these techniques in a predominantly rural, volcanic landscape.
Effects of Highway Runoff on Water Quality
"SELDM facilitates analysis by providing precipitation, pre-storm streamflow, and other variables by region or from hydrologically similar sites."
Chetco River Gravel Transport Study
In 2009, the USGS completed a comprehensive study of gravel transport and storage along the lower Chetco River.
Klamath Basin Studies
In 1992, the USGS began studying possible causes for the change in trophic status of Upper Klamath Lake. Since then research has expanded to include groundwater, geomorphology, streamflow forecasting, and fish ecology.
Willamette River Studies
Welcome to the Willamette River Study page. Here you will find links to USGS research for the Willamette River and the Willamette River Basin.
Geomorphology of the Sprague River Basin
The USGS documents historical and current channel and floodplain processes and conditions to assist management and regulatory agencies in evaluating restoration proposals and designing effective restoration and monitoring strategies for the Sprague River and its principle tributaries. The study involves multiple analyses, including assessments of historical channel change, riparian and floodplain...
Marmot Dam Removal
Marmot Dam on the Sandy River was removed in 2007 as part of decommissioning of Portland General Electric’s Bull Run Hydroelectric Project. Removal of the 15-meter-tall dam would allow the Sandy River to flow freely for the first time in nearly 100 years and make upstream habitat more accessible to anadromous fish.