Watersheds

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  1. 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.

  2. 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...

  3. 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...

  4. A Genetic Approach to Designing a Novel Biological Sensor to Monitor Water Contamination

    Many cities across the country have experienced extreme water problems. The City of Portland has issued several water boiling advisories due to E. coli contamination. Additionally, there has been incidents of...

  5. Effects of Ethnicity and Gender on Sixth-Grade Students' Environmental Knowledge and Attitudes After Participation in a...

    The goal of environmental education (EE) has always been to increase knowledge about the environment and to foster positive environmental attitudes. Increasingly, as the call for integrating EE programs into...

  6. Automatic Calibration of Water Quality and Hydrodynamic Model (CE-QUAL-W2)

    One of the most important purposes of surface water resource management is to develop predictive models to assist in identifying and evaluating operational and structural measures for improving water quality....

  7. Crash Course: The Decisions That Brought Down United Flight 173

    In December 1978, United Airlines Flight 173 arriving in Portland from Denver with 189 people aboard crash-landed in a suburb at 157th and East Burnside. Ten people were killed and dozens more were injured. The...

  8. The Effects of Anthropogenic Stressors on Mercury Concentrations and Community Composition of Freshwater Zooplankton

    Methylmercury (MeHg) bioaccumulation in freshwater aquatic systems is impacted by anthropogenic stressors, including climate change and excess nutrients. The goal of this study was to determine how warmer water...

  9. Effects of Spatially Distributed Stream Power on Check Dam Function in Small Upland Watersheds: A Case Study of the Upper...

    Watershed restoration comes in a variety of forms depending on which set of problems are sought to be remedied. Severe soil erosion, in the form of gullying and/or headcutting, can be mitigated through...

  10. A Novel Approach to Flow and Sediment Transport Estimation in Estuaries and Bays

    Reliable estimates of river discharge and sediment transport to the ocean from large tidal rivers are vital for water resources management, efficient river and harbor management, navigational purposes, and...

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