Index Catalog // ScholarsArchive@OSU

Creator:: Cox, Matthew, Tullos, Desiree, and Scherr, Melissa
Abstract:: Chiloquin Dam, located on the Sprague River in southern Oregon, was removed in August of 2008. The processing of the sediment stored behind the dam (composed primarily of sand and fines) and the resulting bedform changes have been examined using repeat cross section surveys, yearly bathymetric surveys, and surface sediment...
Resource Type:: Presentation
Full Text:: , 11 feet high and 220 feet long with a reservoir of 60 acre-feet Run of the river (constant pool

Creator:: Leon, Arturo S. and Gichamo, Tseganeh Z.
Abstract:: River flooding is a recurrent threat and its control and management continues to be a challenge. It has been recognized that effective flooding control requires a real-time strategy that combines optimization with a physically-based simulation model. Current real-time frameworks that combine simulation and optimization have two main drawbacks. The first...
Resource Type:: Presentation
Full Text:: control of river flooding 1 Arturo Leon Assistant Professor of Water Resources Engineering School of Civil

Creator:: Chang, Heejun, Anthony, Terrance, Ennaanay, Driss, and Sharma, Manu
Abstract:: Water related ecosystem services (WES), such as flow regulation, drinking water supply, temperature regulation, and water recreational activities, are affected by anthropogenic climate change. Forecasting potential shifts in such WES is critical to identifying the form and magnitude of likely impacts. We quantified the levels and values of WES under...
Resource Type:: Presentation
Full Text:: , Terrance Anthony Department of Geography, Portland State University Driss Ennaanay, Manu Sharma Natural

Creator:: Scherberg, Jacob, Petrides-Jimenez, Aristides, Selker, John, Baker, Troy, and Henry, Rick
Abstract:: The Walla Walla basin lies in an arid region on the border of Eastern Washington and Oregon. A large portion of the area is devoted to agricultural production, relying on irrigation water diverted from the Walla Walla River and underlying aquifers occurring within Quaternary gravel and Mio-pliocene basalt formations. Heavy...
Resource Type:: Presentation

Creator:: McDermott, Wendy D.
Abstract:: With the convergence of several economic, social, and environmental factors, dam removal has emerged as a feasible river management option. The Rogue River, located in southwest Oregon, is one of the few river basins in the United States to remove a number of large dams in quick succession. This paper...
Resource Type:: Presentation
Full Text:: Basin, Oregon The Life Cycle of Dams: An Analysis of Policy Change on the Rogue River, Oregon Wendy

Creator:: Jung, Il-Won and Chang, Heejun
Abstract:: Climate change due to global warming could induce more frequent droughts in the Willamette River Basin because less snowfall in winter and earlier snowmelt due to temperature increase may lead to decreases in spring and summer streamflow. This study examines possible changes in drought risk using two drought indices, Standardized...
Resource Type:: Presentation
Full Text:: uncertainty in the Willamette River basin Dept. of Geography, Portland State University, Portland, OR Il-Won

Creator:: Lite Jr., Kenneth E.
Abstract:: Columbia River Basalt Group (CRBG) aquifers are commonly thought to be relatively flat lying, laterally extensive, and mostly confined, and therefore not likely to be directly connected to surface water. However, many of the CRBG units in south-central Washington and north-central Oregon were deposited within evolving synclinal structures of the...
Resource Type:: Presentation
Full Text:: River Basalt Aquifers – Impacts to streams from declining groundwater levels near Mosier, Oregon by

Creator:: Chaffin, Brian C.
Abstract:: The Klamath Basin Restoration Agreement (KBRA) and the Klamath Hydroelectric Settlement Agreement (KHSA) forged between Klamath River Basin stakeholder groups in California and Oregon, when successfully implemented, will lead to the largest dam removal project in history. After a decade of intense legal and social conflict among disparate interests in...
Resource Type:: Presentation
Full Text:: actors and institutions. The concept of river restoration takes on very different meanings for

Creator:: Morace, Jennifer
Abstract:: In order to efficiently reduce toxic loading to the Columbia River basin, sources and pathways need to be identified. Little is known about the toxic loadings coming from wastewater-treatment facilities and stormwater runoff in the system. This study provides preliminary data on these sources and pathways throughout the basin. The...
Resource Type:: Presentation
Full Text:: River Basin Reconnaissance Investigation of Emerging Contaminants in Wastewater-Treatment-Plant

Creator:: Halmstad, Andrew, Najafi, Mohammad Reza, and Moradkhani, Hamid
Abstract:: One important aspect related to the management of water resources under future climate variation is the occurrence of extreme precipitation events. In order to prepare for extreme events, namely floods and droughts, it is important to understand how future climate variability will influence the occurrence of such events. Recent advancements...
Resource Type:: Presentation
Full Text:: Slide 1 Figure 1: Location of Willamette River Basin, the

ScholarsArchive@OSU