Watersheds

Watersheds

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  1. Getting Green to Work in the Northwest Industrial District

    Forest Park and its surrounding watershed experience measurable environmental problems such as urban heat island impacts, increased storm water runoff containing pollutants, fragmentations of habitat...

  2. Hydrogeologic Investigation of a Pumice Aquifer, Fremont/Winema National Forest, Oregon

    The middle Holocene cataclysmic eruption of Mount Mazama blanketed Walker Rim, in south central Oregon, with 270 cm to 300 cm of pumice, causing capture of surface water systems by groundwater, stream...

  3. Application of CE-QUAL-W2 on Tigris River in Iraq

    The Tigris River is the eastern member of the two great rivers in Iraq. Two big rivers pass through Iraq, Mesopotamia. Tigris and Euphrates Rivers with their tributaries form a major river system in the Middle...

  4. Implementation of a Sediment Transport Model for CE-QUAL-W2

    The CE-QUAL-W2 model, developed by Portland State University, simulates water quality and flow. Recommendations to expand on this model and have it include sediment transport are implemented in this report....

  5. Streamflow Modeling of Johnson Creek Subwatersheds Using the Precipitation Runoff Modeling System

    Johnson Creek, in the Portland, Oregon metropolitan region, has several pollutants on the U.S. Environmental Protection Agency’s (EPA) 303(d) list including excess heat, low dissolved oxygen, and harmful...

  6. Analysis of Landsat Satellite Data to Monitor Water Quality Parameters in Tenmile Lake, Oregon

    The health of North and South Tenmile Lakes in coastal Oregon has declined since the introduction of invasive species of fish and plant life in the 1920s. The lakes are now on the Federal Clean Water Act list...

  7. Watershed Response to Climate Change and Fire-Burns in the Upper Umatilla River Basin, USA

    This study analyzed watershed response to climate change and forest fire impacts in the upper Umatilla River Basin (URB), Oregon, using the precipitation runoff modeling system. Ten global climate models using...

  8. Continuity vs. Discontinuity: The Issue of Race and Forced Labor After Emancipation in the American South

    The United States emancipation narrative endures in the popular American conscious as a watershed moment in American history that marked the end of slavery and the beginning of freedom for African Americans....

  9. Modeling the effectiveness of riparian restoration on stream shading in the Clackamas River Basin

    Rivers and streams within the Clackamas River Basin are not currently meeting water quality standards in terms of temperature. The Clackamas River Basin Council (CRBC) designed a restoration program to address...

  10. Using Critical Physical Geography to Map the Unintended Consequences of Conservation Management Programs

    A variety of conservation trends have gained and lost favor throughout the years in agriculture, with U.S. Farm Bills often influencing what conservation practices are implemented by farming communities...

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