Index Catalog // ScholarsArchive@OSU

Using local citation data to develop a locally relevant water resources information guide

Creator:: Wirth, Andrea A. and Mellinger, Margaret
Abstract:: Poster presented at The Oregon Water Conference, Corvallis, OR, May 24th-25th, 2011.
Resource Type:: Poster

Spatial and Temporal Patterns in the Influence of Land Use on Water Quality in Five Portland Area Creeks Representing Differing Levels of Urbanization

Creator:: Steele, Madeline, Bonak, Zoe, and Chang, Heejun
Abstract:: While the negative effects of urban development on freshwater systems are well documented, impacts of human disturbance on water quality vary depending on land cover, local climate, and temporal and spatial scales of analysis. To better understand this variation, we analyzed water quality data for a total of 15 sites...
Resource Type:: Presentation

Continuous Hydrologic Simulation of Johnson Creek Basin

Creator:: Shimota, Richard J. and Hadley, Hans R.
Abstract:: Peak discharge estimates are fundamental in the design of hydraulic structures, embankment protection, and stream restoration efforts, as well as flood risk analysis. Historic stream gage records are commonly used in the development of peak discharge estimates for a particular watershed. Use of an entire stream gage record assumes hydrologic...
Resource Type:: Presentation

Quantitative Relationship between Resazurin and Respiration in Stream Ecosystems

Creator:: Gonzalez-Pinzon, Ricardo, Haggerty, Roy, Argerich, Alba, Acker, Sarah, and Myrold, David
Abstract:: After three decades of active research in hydrology and stream ecology, the connection between solute transport, stream metabolism and nutrient dynamics is still unresolved. This existing gap obscures the functionality of stream ecosystems and how they interact with other landscape processes. To date, determining rates of metabolism is accomplished with...
Resource Type:: Presentation

Willamette Basin Water Futures: County Partnerships with Scientists’ Cutting-Edge Models

Creator:: Stebbins, Adam
Abstract:: The elected County Commissioner-led Benton-Lane-Linn Water Resources Study Group evolved in early 2009 to help counties, their partners, and area residents understand, pursue projects and offer recommendations to governing bodies concerning the region’s water quality and quantity. The Study Group is building on 2009-2010 successes including community engagement to support...
Resource Type:: Presentation

Reconnaissance Investigation of Emerging Contaminants in Wastewater-Treatment-Plant Effluent and Stormwater Runoff in the Columbia River Basin

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

Integrated Water-Quality Assessment using Conventional, Passive-Sampling, and Metabolic Assay Techniques: Approaching System-Level Understanding of Risk

Creator:: Kelly, Valerie and McCarthy, Kathleen
Abstract:: Conventional monitoring to assess water quality of drinking water sources in streams and rivers is typically focused on identifying primary sources and conditions that are associated with mobilization of contaminants. This approach is often organized as a series of discrete samples collected in such a way as to capture the...
Resource Type:: Presentation

Building a Legacy: Integrated Water Resources Management in Damascus, Oregon

Creator:: Gaschler, Steve, Anderson, Mark A., Callaway, Emily, and Green, David
Abstract:: The City of Damascus, Oregon has a current population of nearly 10,000 people and expects to grow to 50,000 residents by 2060. On the eastern edge of the Portland metropolitan area, the City is located in the Clackamas and Willamette basins with an area of almost 12,000 acres. Semi-rural in...
Resource Type:: Presentation

A Novel Physically-Based Framework for the Intelligent Control of River Flooding

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

Relating Surface-Water Nutrients in the Pacific Northwest To Watershed Attributes Using the USGS SPARROW Model

Creator:: Wise, Daniel and Johnson, Hank
Abstract:: The USGS SPARROW model (SPAtially Referenced Regression On Watershed attributes) was used to predict the long-term, average loads, yields, and concentrations of total nitrogen and total phosphorus for stream reaches located in the Pacific Northwest (the Columbia basin, Puget Sound basin, and Pacific drainages of Oregon and Washington), and to...
Resource Type:: Presentation

Exempt Wells in the Courts, Agencies and Legislatures

Creator:: Richardson, Jesse J. Jr.
Abstract:: “Exempt wells” are water wells that are exempt from one or more permit or other requirements in seventeen western states. Important policy considerations underlie the exemption, and only Utah does not exempt any water uses. However, some have expressed concerns about exempt water wells and the impact of the exemptions...
Resource Type:: Presentation

Growth Management-oriented Water Conservation and Reuse in Oregon: Operationalizing Integrated Watershed and Water Resources Management

Creator:: Cavallaro, Jamison
Abstract:: Oregon’s largest metropolitan region, Greater Portland, is home to a diverse array of water utilities though few have sufficiently robust water reuse and conservation goals. In determining the most beneficial way to allocate water-related public goods and natural resource management services, Oregonians are adapting to stronger legal standards among other...
Resource Type:: Presentation

Flood Forecast Modeling of the Willamette Basin Using HEC-CWMS and HEC-ResSim

Creator:: Bogavelli, Shali, Christensen, Daniel, and Goodell, Chris
Abstract:: WEST Consultants, Inc. (WEST) worked with the U.S. Army Corps of Engineers (USACE) Hydrologic Engineering Center (HEC) to enhance the flood forecasting capability and management strategies for the Willamette Basin. Specifically, WEST was contracted by the HEC to modify the existing HEC-ResSim model of the Willamette Basin. Reservoir operation schemes...
Resource Type:: Presentation

Emerging and Legacy Contaminants in POCIS, SPMDs, and the Largescale Sucker (Catostomus macrocheilus) in the Lower Columbia River – USGS ConHab Project

Creator:: Nilsen, Elena B., Alvarez, David, Madsen, James, Zaugg, Steven D., Perkins, Stephanie, Cranor, Walter, and Morace, Jennifer
Abstract:: An interdisciplinary study, USGS Columbia River Contaminants and Habitat Characterization (ConHab) project, is underway to investigate transport pathways, chemical fate and effects of polybrominated diphenyl ethers (PBDEs) and endocrine disrupting chemicals (EDCs) in aquatic media and the foodweb in the lower Columbia River. Polar organic chemical integrative samplers (POCIS) and...
Resource Type:: Presentation

Assimilative Capacity Modeling in Support of the Georgia Comprehensive State-Wide Water Management Plan

Creator:: Watson, Brian, Wyss, Jeremy, Davie, Steven, and Booth, Elizabeth A.
Abstract:: In January 2008, the Georgia Water Council approved the Georgia Comprehensive State-Wide Water Management Plan (GA Water Plan). The purpose of GA Water Plan is to guide the state of Georgia with managing its water resources in a sustainable manner. This means not only allowing growth in Georgia, but also...
Resource Type:: Presentation

A Decision Support System for Optimizing Reservoir Operations Using Ensemble Streamflow Forecasts (ESP)

Creator:: Alemu, Eset T., Palmer, Richard N., Polebitski, Austin, and Meeker, Bruce
Abstract:: The presentation discusses the economic value of Ensemble Streamflow Predictions (ESP) streamflow and energy price forecasts in the operation of the Jackson Hydropower Project in western Washington. A decision support system (DSS) was constructed for this multipurpose reservoir system for the evaluation of operational alternatives and improvement of operational procedures....
Resource Type:: Presentation

Development of an Integrated Water Resources Strategy: Assessing the Public’s Values, Knowledge, Perception of Risk, and Acceptability of Management Strategies.

Creator:: Hubbard, Monica and Wolters, Erika Allen
Abstract:: Oregon is perceived as a water rich state; however, as the 2001 Klamath Basin crisis demonstrated, Oregon is not immune to water conflict and problems. Due to its seasonal fluctuations in water availability and geographical variation, Oregon can be considered a water scarce state, with the majority of surface water...
Resource Type:: Presentation

Toxic Pollutants Measured in Surface Water and Fish Collected from the Willamette River Basin by the Oregon Department of Environmental Quality (2008 – 2010)

Creator:: Coyle, Jim, Hamel, Allen, and Johnson, Ben
Abstract:: In 2008 the Oregon Department of Environmental Quality (ODEQ) initiated a program to monitor Oregon’s surface waters and aquatic biota for the presence of pollutants that pose risks to human and/or environmental health. ODEQ’s Toxics Monitoring Program was first implemented in the Willamette River Basin (WRB) between 2008 and 2010....
Resource Type:: Presentation

The Orange County Water District Riverbed Filtration Pilot Project: Solids and Organic Carbon Removal Using Induced Riverbed Infiltration

Creator:: Keller, Jason, Milczarek, Michael, Woodside, Greg, Hutchinson, Adam, and Rice, Robert
Abstract:: In an effort to reduce suspended solids and organic carbon loading and to increase long-term groundwater recharge rates at Orange County Water District’s spreading basins, a pilot project was conducted to evaluate riverbed filtration as a technology to treat river water prior to groundwater recharge. A shallow under-channel lateral drain...
Resource Type:: Presentation

A River Won: Facilitating Cooperative Negotiation of Transboundary Water Resource Management in the Columbia River Basin through Documentary Film

Creator:: Watson, Julie Elkins
Abstract:: The Columbia River Treaty has been in effect for over 45 years, but its future is uncertain. Starting in 2014, Canada and the United States will have the opportunity to announce ten years’ notice for termination of the current arrangement. As this artificial deadline approaches, stakeholders are working to determine...
Resource Type:: Presentation

Characterizing Rain/snow Partitioning in Mountain Watersheds for Present-day and Future Projected Climates

Creator:: Sproles, Eric A. and Nolin, Anne W.
Abstract:: The western slope of the Oregon Cascades receives up to 3500 mm of precipitation annually, with a majority falling between the months of November-March. In this maritime climate, the partitioning of precipitation between rain and snow is highly sensitive to temperature. Climate models generally agree that winter temperatures in the...
Resource Type:: Presentation

Source Water Protection in a Climate of Change: Perspectives from a Publicly-Owned Utility

Creator:: Morgenstern, Karl and Rubin, Jared G.
Abstract:: The McKenzie River serves as the sole source of drinking water for nearly 200,000 residents in Eugene, OR. The McKenzie River is also home to a number of threatened and endangered fish species. Whereas the majority of the upper watershed is forested, areas of rural development and agriculture occur along...
Resource Type:: Presentation

Developing an Agricultural Water Efficiency Strategy to Help Meet Oregon’s Water Needs

Creator:: Huntsinger, Teresa
Abstract:: In 2010 Oregon Environmental Council (OEC) embarked on a research effort to develop strategic, practical recommendations for advancing agricultural water efficiency in Oregon. While OEC’s report on this project will not be published until July 2011, we will share some of our initial findings at the Oregon Water Conference. As...
Resource Type:: Presentation

Water Quality Data Synthesis in the Metolius River Basin, Oregon

Creator:: Lee, Baek Soo and Jarvis, W. Todd
Abstract:: The Metolius River basin is a sub-basin of the Deschutes Basin within central Oregon. Considered one of the crown jewels of the state, this historically undisturbed basin drew attention in 2009 because the Oregon legislature designated the basin as the first Area of Critical State Concern (ACSC) under the state’s...
Resource Type:: Presentation

A Greenhouse Gas Inventory of a Conventional Water Treatment Plant

Creator:: Fesler, Kristel and Hoell, Kelly
Abstract:: The Joint Water Commission (JWC) in Forest Grove, Oregon completed a greenhouse gas (GHG) inventory of all the direct and indirect emissions associated with the daily operations of its 75 MGD conventional water treatment plant. Currently, very few water and wastewater facilities have completed a greenhouse gas inventory to date....
Resource Type:: Presentation

Managing for Ecosystem Services through Governance Networks: An Analysis of Oregon Senate Bill 513

Creator:: Paulsen, Harmony
Abstract:: Human adaptation to change is an essential determinant in the resilience of complex social-ecological systems. In the field of water policy and management it has become increasingly clear that traditional government actors cannot fully address emerging water problems at every scale given a demonstrated lack of resources, increasing variability in...
Resource Type:: Presentation

Water Conflict Management and Transformation in the Pacific Northwest and the World: The transformative moment & collaborative water use agreements

Creator:: Wolf, Aaron and Marshall, Dena
Abstract:: With the advance of climate change and growth of human populations and economies, the amount of freshwater in the world remains roughly the same as it has been throughout history. The amount economically available for human use is only 0.007% of the total, or about 13,500 km3, which is about...
Resource Type:: Presentation

Surface Water Interaction with “Confined” Columbia River Basalt Aquifers – Impacts to Streams from Declining Groundwater Levels near Mosier, Oregon

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

Climate Warming, Soil Moisture Dynamics, and Water Budget Partitioning: Experimental Results from a Willamette Valley Ecosystem

Creator:: Pangle, Luke, Gregg, Jillian, and McDonnell, Jeffrey
Abstract:: There is reasonable expectation that climate warming will accelerate the hydrologic cycle, resulting in greater evapotranspiration (ET) and reduced groundwater recharge (R) (or stream flow). Though qualitatively intuitive, quantifying these potential shifts in water budget partitioning is a contemporary challenge in hydrology, because the linkage between ET and R is...
Resource Type:: Presentation

Assessment of Climate Change Impacts on Drought Return Periods Using Copula Functions

Creator:: Madadgar, Shahrbanou
Abstract:: Drought events are usually characterized by their duration, severity, and intensity which are calculated based on different indices for drought recognition. Streamflow Drought Index (SDI) used in hydrological droughts is applied in this study to calculate drought variables of historical events in Upper Klamath River basin in Oregon. Historical extreme...
Resource Type:: Presentation

Water Restoration Certificates™: Building a Bridge Between Urban Water Users and Flow Restoration Needs in the Rural West

Creator:: Reeve, Todd
Abstract:: Across Oregon and other PNW states thousands of miles of rivers, streams and adjacent wetlands are chronically de-watered as a result of over-appropriated water rights. In Montana alone, chronic or periodic de-watering occurs in over 4,000 miles of streams across 381 different river or stream systems. The ecological harm resulting...
Resource Type:: Presentation

What Will Oregon’s Future Streamflow Regimes Look Like? Integrating Snowpack and Groundwater Dynamics

Creator:: Grant, Gordon E., Tague, Christina, Safeeq, Mohammad, and Lewis, Sarah
Abstract:: Spatial patterns of summer streamflow in the Cascade Mountains of Oregon vary dramatically between the geologically distinct High and Western Cascade regions. A key control is the partitioning of water input between a fast-draining shallow subsurface flow network (Western Cascades) versus a slow-draining deeper groundwater system (High Cascades). These differences...
Resource Type:: Presentation

Climate Change and Oregon’s Water Future

Creator:: Campana, Michael E.
Abstract:: The specter of climate change looms large over Oregon. Although hydroclimatologic models predict a warmer Oregon, the total volume of precipitation may not change significantly. However, the character (rain vs. snow) and spatial and temporal distributions of precipitation will likely change. The state is already witnessing earlier snowmelt in the...
Resource Type:: Presentation

Managing Ecological Water Requirements for Groundwater-dependent Wetlands on National Forests: A View from the Bottom Up and the Top Down

Creator:: Carroll, Trish, Nevill, Mike, Aldous, Allison, Bach, Leslie, and Gurrieri, Joe
Abstract:: Presented at The Oregon Water Conference, May 24-25, 2011, Corvallis, OR.
Resource Type:: Presentation

Climate Change and Shifts in Water Related Ecosystem Services in the Tualatin and Yamhill River Basins

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

Wolf Creek Monitoring

Creator:: Dammann, Daniel
Abstract:: The Wolf Creek Restoration and Monitoring project is a large-scale restoration project that treated over 10 miles of stream with 900 logs and 3700 boulders over a two year period. Wolf Creek is a tributary to the Umpqua River west of Roseburg, Oregon. This presentation, designed for those involved in...
Resource Type:: Presentation

Effects of Climate Change on Water Quality in the Yaquina Estuary, Oregon

Creator:: Brown, Cheryl A., Sharp, Darrin, Chang, Heejun, and Steele, Madeline
Abstract:: As part of a larger study to examine the effect of climate change (CC) on estuarine resources, we simulated the effect of rising sea level, alterations in river discharge, and increasing atmospheric temperatures on water quality in the Yaquina Estuary. Due to uncertainty in the effects of climate change, initial...
Resource Type:: Presentation

Sensitivity of Oregon Watersheds to Streamflow Changes Due to Climate Warming: A Geohydrological Approach

Creator:: Safeeq, M., Grant, G., and Tague, C.
Abstract:: A key challenge for resource and landscape managers is to predict the consequences of climate warming on streamflows and water resources. Different approaches are being developed to forecast the direction, magnitude, and timing of future streamflow changes in specific landscapes. One approach that is being utilized in the Pacific Northwest...
Resource Type:: Presentation

How Much Groundwater does a Wetland Need? Setting Ecological Water Requirements for Groundwater-Dependent Ecosystems

Creator:: Aldous, Allison, Gurrieri, Joe, Congdon, Roger, Carroll, Trish, and Bach, Leslie
Abstract:: Many freshwater ecosystems are sustained by a continuous supply of clean groundwater. For example, groundwater may provide late season baseflow to rivers or a sustained high water table in wetlands. These ecosystems, termed GDEs, often are affected by management activities that reduce, interrupt, or contaminate their groundwater supply, including groundwater...
Resource Type:: Presentation

Processing of Sediment Pulses Following the Removal of Three Small, Gravel-Filled Barriers

Creator:: Tullos, Desiree, Cox, Matt, Walter, Cara, Kibler, Kelly, and Woloveke, Greg
Abstract:: The decommissioning of dams, as an approach to restoring longitudinal connectivity and to managing aging infrastructure, presents valuable opportunities for organized study of channel responses to sediment pulses. Experiments with physical and numerical models suggest that rivers process coarse sediment pulses primarily through dispersion. In contrast, translation appears to be...
Resource Type:: Presentation

Climate Change: Natural Variability is a Big Deal Too!

Creator:: Curtis, David C. and Prakash, Om
Abstract:: Climate changes. That’s what climate does. It is a natural and dynamic process. The National Weather Service (NWS) recognizes on-going climate change by publishing new figures for average climate every ten years. Climate averages for precipitation, temperature, and other weather parameters are computed on a 30 year basis but only...
Resource Type:: Presentation

Building a Database on Best Management Practices for Pesticide Applications to Aquatic Environments and NOAA Trust Species

Creator:: Gianou, Kelsey, Emanuel, Robert, and Chan, Samuel
Abstract:: Pesticides are widely used to control undesirable pests and may be applied directly to water or lands directly adjacent to water. Pesticides are an option for habitat restoration but there can be unintended consequences to native, threatened and endangered species. There is very little information on the impacts of pesticides...
Resource Type:: Presentation

Assessing Streamflow Response to Climate Change: Why Geology Matters

Creator:: Mayer, Tim
Abstract:: Climate change will continue to profoundly affect water supply and aquatic ecosystems in the Pacific Northwest. Changes such as warmer air temperatures, increases in the proportion of winter rain versus snow, reduced spring snowpack, and earlier snowmelt all affect streamflow. The response to these climate impacts includes earlier runoff peaks,...
Resource Type:: Presentation

Development of a Numerical Model for the Walla Walla Basin using IWFM (Groundwater-surface water modeling of the Walla Walla Basin Using IWFM)

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

Incorporating Climate Signals for Improved Ensemble Streamflow Prediction

Creator:: Najafi, Mohammad Reza and Moradkhani, Hamid
Abstract:: Ensemble Streamflow Prediction (ESP) provides the means for statistical post-processing of the forecasts and estimating the inherent uncertainties. On the other hand large scale climate variables provide valuable information for hydrologic predictions. In this study we propose a post-processing procedure that assigns weights to streamflow ensemble members using these large...
Resource Type:: Presentation

Climate Change Impact on Drought Risk and Uncertainty in the Willamette River Basin

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

Using Partnership and Prioritization to Achieve Whole Watershed Restoration in the Pacific Northwest

Creator:: Senkyr, Lauren and Grant, Megan Callahan
Abstract:: The goal of the Whole Watershed Restoration Initiative (WWRI) is to restore natural functions of whole watersheds in Oregon, Washington, and Idaho, while amplifying community-based partnerships focused on the strategic restoration of Pacific salmon and steelhead ecosystems. The WWRI partners (Ecotrust, NOAA Restoration Center, the U.S. Forest Service's Pacific Northwest...
Resource Type:: Presentation

Groundwater Storage and Flow in an Unconfined Pumice Aquifer, Antelope Unit, Chemult Ranger District, Winema-Fremont National Forest, Oregon

Creator:: Cummings, Michael
Abstract:: The study area lies north-northeast of Crater Lake National Park and is covered by 2 to 3 m of pumice deposited during the climactic eruption of Mount Mazama approximately 7700 years before present. The pumice deposit hosts unconfined, seasonally connected, perched aquifers that support groundwater dependent ecosystems at points of...
Resource Type:: Presentation

Integrating Climate Adaptation Planning and Watershed Assessments to Improve Community-Engaged Watershed Management: A Case Study from the Klamath Basin, Oregon

Creator:: Rosenthal, Ethan, Vynne, Stacy, Bierly, Ken, Fisk, Terry, Addington, Greg, and Jackson, Nathan
Abstract:: The Klamath Basin is rich in history, culture, and biological diversity. Upper Klamath Lake is fed primarily by the Williamson and Sprague rivers. Below the lake’s outlet, the Klamath River begins a 263 mile journey, cutting through both the Cascade and Coast mountain ranges to the Pacific Ocean. The Basin...
Resource Type:: Presentation

Assessment of Climate Change Impacts over the Willamette River Basin Using NARCCAP Dynamically Downscaled Datasets

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

A Collaborative Effort to Evaluate Water Resources in the Lower Siuslaw Watershed

Creator:: Moellendorf, Suzanne, Miller, Mike, Nelson, Dennis, and Livesay, Dave
Abstract:: The City of Florence, local stakeholders, and partner agencies recently formed the Siuslaw Estuary Partnership (SEP) to address threats to drinking water quality and fish and wildlife habitat in the lower Siuslaw watershed. The Sole Source Dunal Aquifer within the lower Siuslaw watershed, which supplies the City ’s drinking water,...
Resource Type:: Presentation

Economic Implications of Climate Change on Ecosystem Restoration Projects With a Beaver Case Study

Creator:: Buckley, Mark
Abstract:: Presented at The Oregon Water Conference, May 24-25, 2011, Corvallis, OR.
Resource Type:: Presentation

Hydrologic Response to Climate Change in the Sprague River Basin, Oregon

Creator:: Risley, John, Hay, Lauren E., and Markstrom, Steven L.
Abstract:: In 2008 the U.S. Geological Survey began a Global Change study that evaluated the watershed scale response to climate change in selected basins across the United States. Fourteen basins for which the Precipitation Runoff Modeling System (PRMS) had been calibrated and evaluated were selected as study sites. PRMS is a...
Resource Type:: Presentation

Assessment of the Hydrologic Response to Climate Change in the Upper Deschutes River Basin, Central Oregon

Creator:: Waibel, M. Scott, Gannett, Marshall W., Chang, Heejun, and Hulbe, Christina L.
Abstract:: Effects of climate change in the Cascade Range will likely include more rain, less snow, and earlier snowmelt in the Cascade Range as compared to present conditions. These changes, in turn, will affect the timing of runoff, groundwater recharge, and groundwater discharge to spring-fed streams. This hydrologic response needs to...
Resource Type:: Presentation

Tracking Oregon’s Water Resources: An Overview of Available Data and a Pitch for a United Network

Creator:: Marvin, Richard K. and VanGordon, Lloyd
Abstract:: Numerous sources of water resource data for Oregon can be found if one knows where to look. Traditional providers such as the US Geological Survey (USGS), the Natural Resource Conservation Service (NRCS), and the Oregon Water Resources Department (OWRD) have made great strides in recent years to make historical and...
Resource Type:: Presentation

Oregon Stream Gaging Network Evaluation: Meeting the Oregon Water Resources Department’s Current and Future Data Needs

Creator:: La Marche, Jonathan L.
Abstract:: Oregon’s stream gaging network was last evaluated in 1970 by the U.S. Geological Survey. Water management and scientific-related needs have changed significantly since 1970, including the recognition of instream water rights and implications of climate change on water resources. The Oregon Water Resources Department (OWRD) has recently undertaken an evaluation...
Resource Type:: Presentation

A Hydroecology Investigation of Two Incised Riparian Wet Meadows Relating Change in Vegetation Communities with Headcut Incision and Soil Properties, Ochoco Mountains, OR

Creator:: Sheahan, Jamie
Abstract:: The inter-relationships of vegetation, soils, and stream channel erosion characteristics were examined in two riparian meadows of the Ochoco National Forest where progressive stream headcut incision is a critical resource management issue and restoration priority. Scientific literature establishes that headcut incision leads to lower groundwater tables, with corresponding shifts in...
Resource Type:: Presentation

Hydrologic Monitoring and Trends in the Upper Klamath Basin over the Last Decade

Creator:: La Marche, Jonathan L., Gates, Edward B., and Lite Jr., Kenneth E.
Abstract:: Over the last decade hydrologic monitoring efforts in the Upper Klamath Basin (UKB) of Oregon have increased in response to the continued strain on surface water and groundwater to meet competing biological and agricultural demands. The Oregon Water Resources Department (OWRD) increased its stream gaging network from three to ten...
Resource Type:: Presentation

Characterizing Collaboration in the Klamath River Basin, USA: An Exercise in Institutional Mapping

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

Linkage Between Geomorphic and Biological Responses of a River to Dam Removal: a Case Study From the Chiloquin Dam on the Sprague River, Oregon

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

Oregon’s Integrated Water Resources Strategy (IWRS)

Creator:: Bateman, Brenda O., McIntosh, Bruce, Paige, Stephanie, Foster, Eugene, and Mucken, Alyssa
Abstract:: During 2009, the 75th Legislative Assembly passed House Bill 3369, directing the Oregon Water Resources Department to develop a state-wide, Integrated Water Resources Strategy (IWRS) to help Oregon meet its future water quantity, water quality, and ecosystem needs, while taking into account coming pressures such as population growth, changing land...
Resource Type:: Presentation

The Life Cycle of Dams: An Analysis of Policy Change on the Rogue River, Oregon

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

Seasonal and Elevational Variation of Surface Water δ¹⁸O and δ²H in the Willamette River Basin

Creator:: Brooks, J. Renee, Wigington, Parker J. Jr, Kendall, Carol, Coulombe, Rob, Comeleo, Randy, and Rodecap, Kent
Abstract:: Climate change is expected to dramatically alter the timing and quantity of water within the nation’s river systems. These changes are driven by variation in the form, location and amount of precipitation that will affect the temporal and spatial distribution of river source water over time. To manage the impact...
Resource Type:: Presentation

The Oregon Water Conference 2011: evaluating and managing water resources in a climate of uncertainty

Creator:: Campana, Michael E., Ruff, James, Steinblums, Ivars, Chang, Heejun, Gannett, Marshall W., Laenen, Antonius, Lea, Jolyne, and Turner, Rudd
Abstract:: Program book for The Oregon Water Conference held May 24-25, 2011, Corvallis, OR.
Resource Type:: Presentation

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