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  • Monitoring and Prediction of Severe Weather Phenomena through GNSS Meteorology

    Creator:
    Tahami, Hoda
    Abstract:
    While primary use of Global Navigation Satellite System (GNSS) is positioning, navigation, and timing (PNT), various GNSS applications have emerged over the past decades that includes GNSS meteorology. GNSS meteorology is the remote sensing of the atmospheric constituents in the neutral atmosphere – mostly in the troposphere - using GNSS...
    Resource Type:
    Dissertation
    Full Text:
    : Monitoring and Prediction of Severe Weather Phenomena through GNSS Meteorology Abstract approved

  • Dynamics of the nearshore wave bottom boundary layer

    Creator:
    Foster, Diane Lyn
    Abstract:
    This thesis presents an examination of the nearshore wave bottom boundary layer under conditions of significant sediment response. Using both field observations and simple models, the response of the bottom boundary layer to random waves is shown to have a complex behavior. First, the linearized wave bottom boundary layer governing...
    Resource Type:
    Dissertation
    Full Text:
    Dynamics of the nearshore wave bottom boundary layer AN

  • The effect of surface configuration on evaporation from a porous stream model

    Creator:
    Tichenor, Bruce A., 1940-
    Abstract:
    A stream's temperature is a major factor in its ability to support fish life and to be utilized for other beneficial purposes. The approach most generally used for stream temperature prediction is the Energy-Budget method, which involves the inventory of all the energy entering and leaving the stream. A temperature...
    Resource Type:
    Dissertation
    Full Text:
    boundary layer above the evaporation surface. The equations of Norris and of Thornthwaite and Holzman

  • Collection and analysis of evaporative flux data for various climates

    Creator:
    Katul, Gabriel
    Abstract:
    Daily evaporative flux and meteorological data from three sites were collected and analyzed. Analysis included evaluation of several reference evapotranspiration estimating methods which were theoretically based on distinct physical laws. The estimating methods included pan evaporation, energy-based Priestly-Taylor, and combination methods with and without biological adjustments. The data set represented...
    Resource Type:
    Masters Thesis
    Full Text:
    ground. Burying pans in the ground has the advantage of reducing boundary effects, such as radiation on

  • Analysis of evapotranspiration for various climatic regimes using geostatistics

    Creator:
    Nuss, Jeffery L.
    Abstract:
    Research was conducted to determine the applicability of using the theory of regionalized variables or geostatistics in characterizing the spatial variability of reference evapotranspiration (ETr) over various climatic regimes for the state of Oregon. The state was divided into five climatic regions based on topographic features and local meteorological conditions:...
    Resource Type:
    Masters Thesis
    Full Text:
    Penman 16 aerodynamic method to the planetary boundary layer in estimating regional ET. Rouse and

  • Land surface energy balance and surface soil moisture variation in HAPEX-MOBILHY

    Creator:
    Nichols, William E.
    Abstract:
    The HAPEX-MOBILHY regional experiment provided an significant opportunity to analyze the partition of energy and distribution of water over land surfaces. The combination of remotely sensed data and ground instrument networks over the large-scale in situ experiment allowed investigation of spatial and temporal variation of such hydrologic parameters as the...
    Resource Type:
    Masters Thesis
    Full Text:
    are also conducted at this scale, where land surface fluxes constitute the lower boundary condition

  • Coupled wave and surge modeling of Tillamook Bay, Oregon : extreme events and climate change impacts

    Creator:
    Cheng, Tiffany Kay
    Abstract:
    Estuaries represent the confluence of land and ocean environments and encompass a number of complex interactions amongst tides, winds, offshore waves and the riverine contributions, all of which contribute to total water levels (TWLs). The study of TWLs and the relative weight of its components can assist local communities in...
    Resource Type:
    Masters Thesis
    Full Text:
    offshore boundary are derived from a regional WAVEWATCH-III hindcast and forecast, while riverine

  • Watershed modeling at Yucca Mountain, Nevada

    Creator:
    Britch, Michael J.
    Abstract:
    Studies are currently underway to determine the suitability of Yucca Mountain in Nevada as the nation's first high-level nuclear waste repository. Values of net infiltration are required to determine pre-waste emplacement groundwater travel times and the performance of the repository as a waste containment system. The objective of this study...
    Resource Type:
    Masters Thesis
    Full Text:
    following section. The two- layer soil boundary only allows water to flow downward across it. The model

  • Microwave scattering from surf zone waves

    Creator:
    Catalán Mondaca, Patricio A.
    Abstract:
    Wave breaking in the surf zone is an important forcing mechanism on the generation of nearshore currents and in the driving of sediment transport. At the same time, wave breaking can have significant spatial and temporal variability that needs to be accounted for in the description of nearshore processes. Remote...
    Resource Type:
    Dissertation
    Full Text:
    Conceptual roller model . . . . . . . . . . . . . . . . . . . . . . . . . . . . 145 6.3 Schematic of a layer

  • 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:
    Boundary layer phase leads derived in this study using equation (5.18) compared to previous experiments