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Filtering by: Alternative title ssim Report no. 1915 Remove constraint Alternative title ssim: Report no. 1915 Decade 1970-1979 Remove constraint Decade: 1970-1979 Degree Field Civil Engineering Remove constraint Degree Field: Civil Engineering

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  • Sediment transport in a gravel-bottomed stream

    Creator:
    Milhous, Robert T.
    Abstract:
    Sediment transport in a gravel-bottomed stream located in the Oregon Coast Range was studied to determine the effects of a single layer of large particles (the armour layer) located at the surface of the bed material. The bed load transport system was studied jointly with suspended sediment transport to understand...
    Resource Type:
    Dissertation
    Full Text:
    . Thus, no general satisfactory method for all types of streams has been developed. As a result

  • Air photo analysis of waste dispersion from ocean outfalls

    Creator:
    James, Wesley Pierce
    Abstract:
    Aerial photography provides a method of analyzing dispersion of wastes that are discharged into the ocean. This method is more comprehensive than conventional boat sampling in dispersion studies. The photographic technique permits waste concentrations to be measured throughout the plume in one instant; thereby allowing the diffusion analysis to be...
    Resource Type:
    Dissertation
    Full Text:
    state condition, no vertical or longitudinal mixing and unidirectional transport velocity in the X

  • A study on the oxidation of sulfides in estuarine waters

    Creator:
    Korpalski, Thomas Paul
    Abstract:
    Waters of various salinities were secured from the Umpqua estuary, the Umpqua River, and the open ocean near the mouth of the estuary. The rate of oxidation of sulfides in these various waters was investigated to assess the potential longevity of free sulfides in estuarine waters. The rate of disappearance...
    Resource Type:
    Masters Thesis
    Full Text:
    disappearance of sulfides showed no simple rela-. tionship with salinity. Estuarine water exhibited the fastest

  • Pollution and tidal flushing predictions for Oregon's estuaries

    Creator:
    Choi, Byungho
    Abstract:
    The overriding goal of this study was to provide first order estimates of dilution and tidal flushing of waste discharges released hypothetically into various Oregon estuaries during critical low flows and tides. Causal relationships between discharged wastes and subsequent estuarine response were studied. Various approaches to determine the assimilative capacity...
    Resource Type:
    Masters Thesis
    Full Text:
    on which this study is based was assembled from pub- lished sources; no field measurements for

  • In situ measurement of the benthal oxygen requirements of tidal flat deposits

    Creator:
    Crook, Gene Ray
    Abstract:
    In situ light and dark planktonic and benthal respirometers were used to measure the oxygen requirements of Yaquina estuary water and benthal deposits. Respirometer devices were constructed so that actual conditions of mixing could be simulated and benthal deposit disturbance would be minimized. A mathematical model of a benthal respirometer...
    Resource Type:
    Masters Thesis
    Full Text:
    in BOD of the LI sludge and overlying waters were monitored. No mixing was used, and no attempt

  • Modeling estuary pollution by computer simulation

    Creator:
    Grenney, William J.
    Abstract:
    A digital computer model was developed to simulate the time and space distribution of a dissolved pollutant in an estuary. The program is basically a one-dimensional finite-difference model, but two dimensions can be represented by attaching together several one-dimensional channels. The influence of convection, dispersion and decay are included in...
    Resource Type:
    Masters Thesis
    Full Text:
    subroutine SOSINK Is output desired at this time? no IWrite outDutl Has time exceeded maximum time for run

  • Estuarine tidal hydraulics : one dimensional model and predictive algorithm

    Creator:
    Goodwin, Carl R.
    Abstract:
    A one-dimensional, implicit, finite-difference model is developed, calibrated and verified for three estuaries along the central Oregon coast. The model is used to generate controlled data for a large number of hypothetical estuaries. Two non-dimensional coefficients, K[subscript F], and. K[subscript I], are developed incorporating physical characteristics of the estuary which...
    Resource Type:
    Dissertation
    Full Text:
    - Institutional Grant GH-45 and Federal Water Pollution Control Administration Grant No. WP-01385-Ol. This

  • Prediction of monthly streamflows for Oregon coastal basins using physiographic and meteorological parameters

    Creator:
    Orwig, Charles Edwin
    Abstract:
    Prediction equations were developed for estimating the flow regime at ungaged stream locations in the Oregon coastal range. Principal components analysis was used to screen the initial data set of physiographic and meteorological parameters. The final regression equations for predicting mean monthly flow had standard errors of estimate ranging from...
    Resource Type:
    Masters Thesis
    Full Text:
    spring, but no variable was used to index this process; (3) estimates of basin precipitation may have

  • Seasonal variations in tidal dynamics, water quality and sediments in the Alsea Estuary

    Creator:
    McKenzie, David Roller
    Abstract:
    During 1973 data was collected to analyze the seasonal variations of the tidal dynamics, water quality and sediments of the Alsea Estuary. A summary of historical information with a list of all known alterations to the estuary was made. A complete physical description, including the geographical setting and mixing classification...
    Resource Type:
    Masters Thesis
    Full Text:
    provide for much useful informa- tion on the Alsea Estuary no single report attempts to document

  • An evaluation of dust abatement materials used in Region 6

    Creator:
    Langdon, Brian B.
    Resource Type:
    Masters Thesis
    Full Text:
    Depth. 29 3.1 Test Road Location Map, State of Oregon. 34 3.2 Grainsize Distribution, Road No. 244. 36