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Filtering by: Creator Franks, Peter J. S. Remove constraint Creator: Franks, Peter J. S. Degree Field Civil Engineering Remove constraint Degree Field: Civil Engineering

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  • The effects of land use on stream nitrate concentrations : from the catchment scale to the regional scale

    Creator:
    Poor, Cara J.
    Abstract:
    This work furthers the understanding of processes occurring in catchments that affect stream nitrate concentrations using two different approaches: a temporally intensive case study of three headwater catchments with varying land use (through storm event monitoring) and a spatially intensive study on the regional scale (through statistical modeling) of 1st-4th...
    Resource Type:
    Dissertation
    Full Text:
    AN ABSTRACT OF THE DISSERTATION OF Cara J. Poor for the

  • Biodegradability and oxygen uptake studies on resuspended estuarine bottom sediments

    Creator:
    Touhey, Robert James
    Abstract:
    A study was conducted to determine the oxygen uptake rate of resuspended estuarine bottom sediments and the biodegradability of the organic matter released during resuspension. Oxygen uptake was measured on a Gilson Differential Respirometer and the percent biodegradability was calculated by determining the soluble organic carbon on a Beckman Carbonaceous...
    Resource Type:
    Masters Thesis
    Full Text:
    DREDGING) which provided the funds for this research. To Dr. Frank Schaumburg, who presented the

  • A study of the quantity and distribution of bark debris resulting from log rafting

    Creator:
    Williamson, Kenneth J.
    Abstract:
    A study was conducted to determine the quantity and distribution of bark debris resulting from log rafting. Three distinct problems were studied: (I) the quantity of bark dislodged from the logs while being placed in the rivers and during transport in log rafts; (2) the percentage of the bark that...
    Resource Type:
    Masters Thesis
    Full Text:
    School Date thesis is presented 0104411441E /44, Typed by Cheryl E. Curb for Kenneth J. Williamson

  • Local scour at isolated obstacles on river beds

    Creator:
    Huang, Cheng-Chang
    Abstract:
    Maximum equilibrium scour depths, equilibrium scour volumes, and induced equilibrium movements at isolated obstacles on river beds were investigated in clear-water scour. The research was achieved by a systematic flume study based on the results of dimensional analysis of local scour. The main tested obstacles for local scour were cubes....
    Resource Type:
    Dissertation
    Full Text:
    . Sollitt, F. Tom Lindstrom, Marshall J. English, Hiram W. Li, and W. S. (Gus) Baker who helped guide me

  • Behavior of stream inflows to a stratifying field reservoir

    Creator:
    Chasse, James Peter
    Abstract:
    The behavior of a stream upon entering a field reservoir was studied at various stages of stratification. The principal field techniques included fluorometric and temperature surveys. General relationships were obtained, between dimensional and locational characteristics of the inflow current and the thermal structure of the impoundment. As predicted by analytical...
    Resource Type:
    Masters Thesis
    Full Text:
    S. Slotta. The author is equally appreciative of the council and assistance given by Dr. Peter C

  • A stochastic precipitation event model for use in erosion simulations

    Creator:
    Istok, J. D.
    Abstract:
    Mathematical models of the precipitation process are needed to effectively use historical precipitation data in the design and planning of engineering projects and for analysis of watershed runoff behavior. Existing simple models based on the assumptions of independent, identically-distributed random variables are insufficient to describe several features of the historical...
    Resource Type:
    Dissertation
    Full Text:
    Model for Use in Erosion Simulations Abstract approved: Redacted for Privacy a Peter C. Klingeman

  • The static and dynamic analysis of discretely represented moorings and cables by numerical means

    Creator:
    Dominguez, Richard Frank
    Abstract:
    Computer oriented techniques and procedures are presented for the analysis of single and multiple cable systems. Application is made to a two-point mooring system influenced by surface and subsurface hydrodynamic loading. The effects of the various parameters are presented and the numerical method is compared to exact solutions obtained from...
    Resource Type:
    Dissertation
    Full Text:
    lying in a vertical plane, as shown in Figure 2.2-1 , then w(s) = w(s)j (2.2 -1) where i, J, k are

  • Estuarine sediment controls on trace metal distributions

    Creator:
    Davies-Colley, Robert J.
    Abstract:
    Sediments are the major compartment in aquatic environments for many materials of toxic or nutrient concern. The lack of knowledge of the phase associations of toxic metals in sediments is the largest deficiency in our understanding of the environmental hazard posed by metal contamination. This study examined the sedimentary partitioning...
    Resource Type:
    Dissertation
    Full Text:
    AN ABSTRACT OF THE THESIS OF Robert J. Davies-Colley for the degree of Doctor of Philosophy in

  • The Art of Reducing Coastal Hazard Complexity: Coupling Physics and Probability to Understand Extremes, Variability, and Climate-dependence

    Creator:
    Anderson, Dylan L.
    Abstract:
    Coastal hazards are the result of numerous physical processes cumulatively causing water levels to flood and erode the land. The waves, storm surges, tides, and run-off contributing to elevated water levels are each the product of chaotic and random weather patterns. These stochastic weather patterns dissipate energy in Earth's climate...
    Resource Type:
    Dissertation
    Full Text:
    , and Climate-dependence Abstract approved: Peter Ruggiero Coastal hazards are the result of numerous

  • Evaluating climate change induced coastal flood impacts to San Diego Bay Naval Infrastructure - a hybrid statistical dynamical modeling approach

    Creator:
    Anderson, Tyler P.
    Abstract:
    This study utilizes probabilistic surrogate modeling techniques around San Diego Bay with an emphasis on naval infrastructure and operations to evaluate the impact of five global mean sea level rise scenarios (GMSLR). Spatially continuous total water levels (TWLs) are combined with a digital elevation model (DEM) of the region to...
    Resource Type:
    Capstone Project
    Full Text:
    : ______________________________________________________ Dr. Peter Ruggiero This study utilizes probabilistic surrogate modeling techniques