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Filtering by: Has journal Boundary-Layer Meteorology Remove constraint Has journal: Boundary-Layer Meteorology Degree Name Master of Science (M.S.) Remove constraint Degree Name: Master of Science (M.S.)

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  • Dynamics of a differentially-heated geophysical boundary layer

    Creator:
    Smith, Bartlett Knapp
    Abstract:
    An analytical two-layer model consisting of a time-dependent stratified boundary layer topped by stratified free flow is developed in order to study atmospheric boundary layer production of vertical motion. To avoid use of a constant eddy viscosity, the boundary layer equations are layer-integrated over a fixed depth, and surface stress...
    Resource Type:
    Masters Thesis
    Full Text:
    Differentially-Heated Geophysical Boundary Layer Abstract approved J. Mah An analytical two-layer model

  • Parameterization of shallow convection in the boundary layer

    Creator:
    Chu, Cheng-tsong
    Abstract:
    A shallow convection scheme is derived from several data sets (BOMEX, GATE, AMTEX, BLX83) and developed for the OSU 1-D boundary layer model. Results of the model structure and characteristics of the saturation point (SP) profile are compared against the constant cloud diffusivity scheme of Tiedtke (1983) and the ECMWF...
    Resource Type:
    Masters Thesis
    Full Text:
    Shallow Convection in the Boundary Layer Abstract approved: A shallow convection scheme is derived from

  • Linking dynamics of the near-surface flow to deeper boundary layer forcing in the nocturnal boundary layer

    Creator:
    Smoot, Alexander R.
    Abstract:
    Weak-wind flow in the nocturnal boundary is one of the most poorly understood problems in the field of meteorology. The understanding of weak-wind flows is essential for the improvement of regulatory dispersion models which are currently rendered invalid under weak-wind conditions and stable stratification. Recently there have been increased efforts...
    Resource Type:
    Masters Thesis
    Full Text:
    of the near-surface flow to deeper boundary layer forcing in the nocturnal boundary layer Abstract

  • A study of the relationship between ageostrophy and dynamical periodicities of the tropical Pacific Boundary Layer

    Creator:
    McCandlish, Cole B.
    Abstract:
    Eight years (1980-87) of twice-daily high-resolution radiosonde data from a tropical mid-Pacific island station are analyzed to generate time series of the planetary boundary layer (PBL) top pressure, an ageostrophic parameter (related to the divergence), and a parameter of mean PBL specific humidity. Sample spectra of these time series are...
    Resource Type:
    Masters Thesis
    Full Text:
    Relationship Between Ageostrophy and Dynamical Periodicities of the Tropical Pacific Boundary Layer Abstract

  • A numerical study of mesoscale motion in the atmospheric mixed layer

    Creator:
    Ruscher, Paul Harold
    Abstract:
    The numerical modeling of motions in the atmosphere's planetary boundary layer (PBL) is a challenging task. In general, the boundary layer interacts with both the overlying atmosphere and the underlying land or water surface in a complex manner. Random turbulence is also present in the PBL which precludes exact prediction...
    Resource Type:
    Masters Thesis
    Full Text:
    of motions in the atmosphere's planetary boundary layer (PBL) is a challenging task. In general

  • Photographic analysis of buoyant stack plumes in a laboratory model of the turbulent mixed layer

    Creator:
    Hukari, Neil F.
    Abstract:
    Four buoyant plumes were produced within a laboratory convectively mixed layer from a source height of about z[subscript s] = 0.15 h, where h is the height of the convectively mixed layer. The projected images of these plumes in the X-Z plane were analyzed using a densitometer (photomultiplier tube) to...
    Resource Type:
    Masters Thesis
    Full Text:
    Buoyant Stack Plumes in a Laboratory Model of the Turbulent Mixed Layer Abstract approved: Four buoyant

  • A nonlocal mixing formulation for the atmospheric boundary layer

    Creator:
    Frech, Michael C.
    Abstract:
    A two-scale approach for the turbulent mixing of momentum in an unstable stratified boundary layer is proposed in an attempt to eliminate existing inconsistencies between parameterized mixing of heat and momentum. The parameterization of the large eddy stress is suitable for simple boundary layer models where computational efficiency is important....
    Resource Type:
    Masters Thesis
    Full Text:
    Formulation for the Atmospheric Boundary Layer Abstract approved: A two-scale approach for the turbulent

  • Turbulent structure in the bora and stable boundary layer

    Creator:
    Frank, Helmut P.
    Abstract:
    An eigenvector analysis of the velocity-temperature correlation matrix is applied to clear-air turbulence measured by aircraft in the Bora. The eigenvectors are identified with the main eddies of the turbulence. This study attempts to infer the three-dimensional structure of these eddies. The results are compared with turbulent structures in the...
    Resource Type:
    Masters Thesis
    Full Text:
    Bora and Stable Boundary Layer Abstract approved: Larry Mahrt An eigenvector analysis of the

  • Turbulence structure within an inclined laboratory convection tank

    Creator:
    Nance, Jon D.
    Abstract:
    A baroclinic, convective mixed-layer was modeled, using water, in a laboratory convection tank identical to that used in the free convection study of Deardorff and Willis (1985). Baroclinicity and mean-flow shearing were achieved by tilting the tank by an angle of 1O⁰. The resulting mechanical-production rate of turbulence kinetic energy...
    Resource Type:
    Masters Thesis
    Full Text:
    boundary layer in a state of free convection (Willis and Deardorff, 1974; Deardorff and Willis, 1985) For

  • The field edge flux paradox

    Creator:
    Barr, Colleen M.
    Abstract:
    Precision irrigation has made spatially explicit water management a reality. However, detailed knowledge about the spatially variable evapotranspiration is often unavailable. One example location where we can begin to understand the impact of spatial variability on evapotranspiration is at the field edge, which contains a sharp discontinuity in surface conditions....
    Resource Type:
    Masters Thesis
    Full Text:
    concentrations was developed in 1934. This analytical solution predicts a boundary layer growth in water vapor