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Filtering by: Creator Steig, Eric J. Remove constraint Creator: Steig, Eric J. Committee Member Skyllingstad, Eric Remove constraint Committee Member: Skyllingstad, Eric Degree Name Doctor of Philosophy (Ph.D.) Remove constraint Degree Name: Doctor of Philosophy (Ph.D.)

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  • Voxel based indirect illumination using spherical harmonics

    Creator:
    Rauwendaal, Randall
    Abstract:
    Realistic (ideally photorealistic) real-time rendering has remained an elusive goal in computer graphics. While photorealistic rendering has certainly been achieved at the expense of tremendous computational resources and corresponding rendering times; real-time rendering typically must accept a great number of compromises to achieve adequate performance, such as aliasing artifacts, the...
    Resource Type:
    Dissertation
    Full Text:
    Harmonics Abstract approved: Michael J. Bailey Realistic (ideally photorealistic) real-time rendering

  • Evolution of Turbulence, Heat Content, and Freshwater Lenses in the Diurnal Warm Layer

    Creator:
    Moulin, Aurélie J.
    Abstract:
    Thorough understanding of the mechanisms controlling the temperature structure in the surface mixed layer of the ocean and, in particular, accurate values of sea surface temperature are critical for properly parameterizing air-sea heat exchange and quantifying the amount of heat redistributed below the surface. It is however difficult to obtain...
    Resource Type:
    Dissertation
    Full Text:
    AN ABSTRACT OF THE DISSERTATION OF Aurélie J. Moulin for

  • Vertical Structure of the Lower Troposphere in a Changing Arctic

    Creator:
    Watkins, Daniel M.
    Abstract:
    The Arctic climate system is changing dramatically as a response to rising atmospheric greenhouse gas concentrations. Key indicators of Arctic change include thinning and retreating of Arctic pack ice, thawing permafrost, greening tundra, and rising surface temperatures. The structure of the atmospheric boundary layer influences and is influenced by processes...
    Resource Type:
    Dissertation
    Full Text:
    many interesting tangential discussions. To Eric Skyllingstad, Simon de Szoeke, and Justin Wettstein

  • Marine Low Clouds : Radiation, Turbulence, and Forecasting

    Creator:
    Verlinden, Kathryn L.
    Abstract:
    High-resolution ship-based observations of a nearly uniform stratocumulus deck in the southeast Pacific during 17 days of the 2008 VOCALS regional experiment elucidate radiation and turbulence in the marine boundary layer (MBL). A new method for prescribing observations-based cloud properties to the Rapid Radiative Transfer Model is presented and applied...
    Resource Type:
    Dissertation

  • Analyzing the present and future Pacific-North American teleconnection using global and regional climate models

    Creator:
    Allan, Andrea M.
    Abstract:
    In this thesis I present the results of a comprehensive assessment of the Pacific-North American (PNA) teleconnection pattern in general circulation models (GCMs) and a regional climate model (RCM). The PNA teleconnection pattern is a quasi-stationary wave field over the North Pacific and North America that has long been recognized...
    Resource Type:
    Dissertation
    Full Text:
    committee, Nick Pisias, Julia Jones, and Eric Skyllingstad for continuously supporting me throughout the

  • Turbulence in sheared, salt-fingering favorable environment

    Creator:
    Kimura, Satoshi
    Abstract:
    Instability and turbulence in sheared, salt-fingering favorable stratification are studied using three-dimensional direct numerical simulations (DNS). Salt-fingering favorable stratification is gravitationally stable, because the unstable vertical gradient of salinity is stabilized by temperature (warm, salty over cool, fresh water-masses). Salt-fingering instability can occur at the interface of these different water-masses....
    Resource Type:
    Dissertation
    Full Text:
    Jim Moum, Eric Skyllingstad, Ricardo Matano, and Bill Bogley. I appreciate all the energy and time

  • An Experimental Investigation of Interstitial Air Movement in Seasonal Snow

    Creator:
    Drake, Stephen A.
    Abstract:
    Atmospheric pressure changes do not stop at the permeable snow surface but rather propagate into it. These pressure changes range from high-amplitude, low-frequency events caused by seasonal cycles and synoptic weather systems to small-amplitude, high-frequency events caused by topographic features and turbulence. The effect of pressure changes on interstitial air...
    Resource Type:
    Dissertation
    Full Text:
    committee members: Dr. Jennifer Hutchings, Dr. John Selker and Dr. Eric Skyllingstad. For his

  • Multiagent learning for locomotion and coordination in tensegrity robotics

    Creator:
    Iscen, Atil
    Abstract:
    Tensegrity structures are composed of pure compressional elements that are connected via a network of pure tensional elements. The concept of tensegrity promises numerous advantages to the field of robotics. Tensegrity robots are, however, notoriously difficult to control due to their oscillatory nature and nonlinear interaction between the components. Multiagent...
    Resource Type:
    Dissertation
    Full Text:
    reward function. We take a snapshot of the environment (z), feed the reward function with z and z−j