Watersheds

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  1. Biostratigraphy of the Cowlitz Formation in the upper Nehalem River Basin, northwest Oregon

    Examination of stream and roadcut exposures of the Cowlitz Formation allows the selection of measured representative sections, and collection of fossils, from an area roughly defined by the intersection of the...

  2. Drainage Reversals Due to Tectonic Uplift: an Investigation through Modeling

    In mountainous landscapes throughout the world bedrock dominated river channels record a history of the tectonic and climatic evolution of the drainage basins that contain them. In traditional analysis of river...

  3. Working for the "Working River": Willamette River Water Pollution, 1926 to 1962

    Efforts to abate Willamette River pollution between 1926 and 1962 centered on a struggle between abatement advocates and the two primary polluters in the watershed, the City of Portland and the pulp and paper...

  4. Modeling Liquid Solid Separation in a Coalescing Plate Oil Water Separator

    When precipitation occurs in undeveloped areas a number of abstractions catch and absorb the precipitation. Abstractions include plants and trees, which catch a portion of the water, pervious soils that...

  5. Chinookan Villages of the Lower Columbia

    Villages were the center of Chinookan life, filling the role that tribes did for Native people in other parts of North America. Every village of any size or significance had a recognized leader or chief, and...

  6. Mixing Layer Dynamics in Separated Flow Over an Estuarine Sill with Variable Stratification

    We investigate the generation of a mixing layer in the separated flow behind an estuarine sill (height H ∼ 4 m) in the Snohomish River, Washington as part of a larger investigation of coherent structures...

  7. Continuous Deflection Separation of Stormwater Particulates

    Capture of stormwater particulate matter is of concern to watershed managers trying to meet water quality guidelines by removing toxics associated with particulates from natural water bodies. A laboratory...

  8. Ensemble Prediction and Data Assimilation for Operational Hydrology

    This special section in the Journal of Hydrology will discuss the need for advancing hydrologic ensemble prediction and DA.

  9. Estimation of Historic Flows and Sediment Loads to San Francisco Bay, 1849 – 2011

    River flow and sediment transport in estuaries influence morphological development over decadal and century time scales, but hydrological and sedimentological records are typically too short to adequately...

  10. Northwest Forest Plan The First 20 Years (1994-2013): Watershed Condition Status and Trend

    We used two data sets to evaluate stream and upslope/riparian condition for sixth-field watersheds in each aquatic province within the Northwest Forest Plan (NWFP) area. The stream evaluation was based on...

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