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Filtering by: Funding statement This work was supported by a grant from the Planetary Atmospheres Program of NASA and a Cooperative Agreement with NASA Ames Research Center. Remove constraint Funding statement: This work was supported by a grant from the Planetary Atmospheres Program of NASA and a Cooperative Agreement with NASA Ames Research Center. Resource Type Dissertation Remove constraint Resource Type: Dissertation

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  • Modeling of forced planetary waves in the Mars atmosphere

    Creator:
    Hollingsworth, Jeffery L.
    Abstract:
    Mariner 9 and Viking spacecraft observations during the 1970's have provided evidence for planetary-scale wave-like disturbances in the Mars atmosphere. It has been suggested that possible sources of the wave activity are dynamical instabilities (e.g., barotropic and/or baroclinic instabilities). An other candidate source is forced, quasi-stationary planetary waves. In connection...
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    Dissertation
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    gift to constantly change and grow with you. Most of this research has been supported by the NASA

  • A comparative study of concerns and expectations of coordinators and employers for selected cooperative work experience programs in Oregon community colleges

    Creator:
    Kirsch, Theodore W.
    Abstract:
    The goal of this research was to identify those program elements and their levels of fulfillment in community college cooperative education programs which are essential if the success of an employer's contribution to a student's training is to be reasonably assured. The primary purpose was to determine if statistically significant...
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    Dissertation
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    assistance and cooperation which was so willingly provided by those who made the completion of this study

  • A mesoscale model study of atmospheric circulations for the northern hemisphere summer on Mars

    Creator:
    Tyler, Daniel Jr
    Abstract:
    The Penn-State/NCAR MM5 mesoscale model was adapted for mesoscale simulations of the Martian atmosphere (the OSU MMM5). The NASA Ames Mars GCM provides initial and boundary conditions. High-resolution maps for albedo, thermal inertia and topography were developed from Mars Global Surveyor (MGS) data; these baseline maps are processed to appropriate...
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    Dissertation
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    doctoral research. Initial and boundary conditions for the OSU MMM5 are provided by a version of the NASA

  • An examination of structure and parameterization of turbulence in the stably-stratified atmospheric boundary layer

    Creator:
    Ruscher, Paul Harold
    Abstract:
    The very stable boundary layer is a region of the atmosphere typified by large vertical gradients of temperature and momentum. Analysis of very stable atmospheric flows is complicated by the presence of nonlinear interactions among gravity waves, shear-driven overturning circulations, two-dimensional vortical modes and intermittent turbulence in various stages of...
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    Dissertation
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    atmosphere and with data from Wangara day 33. A simulation over snow cover is also examined. The tests

  • Education of American research astronomers, 1876-1941

    Creator:
    Hall, Robert Dale, 1947-
    Abstract:
    The education (particularly graduate education) of Americans who were active in astronomical research between 1876 and 1941 is assessed for its effectiveness in preparing the astronomers for careers in research. This period contains three dynamic changes: the growth of American astronomy in becoming the world's leading community of astronomers, the...
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    Dissertation
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    criticisms often hit the mark and helped me see the nuances of my work. His help and encouragement made this

  • INDOEX aerosol optical depths and radiative forcing derived from AVHRR

    Creator:
    Tahnk, William Richard
    Abstract:
    The Indian Ocean Experiment (INDOEX) had as a primary objective determining the radiative forcing due to anthropogenic aerosols over climatologically significant space and time scales: the Indian Ocean during the winter monsoon, January-March. During the winter monsoon, polluted, low-level air from the Asian subcontinent blows over the Arabian Sea and...
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    supported by a National Science Foundation Science and Technology Center grant to the Scripps Institute of

  • Boundaries of research : civilian leadership, military funding, and the international network surrounding the development of numerical weather prediction in the United States

    Creator:
    Harper, Kristine C.
    Abstract:
    American meteorology was synonymous with subjective weather forecasting in the early twentieth century. Controlled by the Weather Bureau and with no academic programs of its own, the few hundred extant meteorologists had no standing in the scientific community. Until the American Meteorological Society was founded in 1919, meteorologists had no...
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    Dissertation
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    ) employed by one governmental agency. This situation of governmental dominance fed, and was fed by, a

  • John Archibald Wheeler : a study of mentoring in modern physics

    Creator:
    Christensen, Terry M.
    Abstract:
    This dissertation has two objectives. The first objective is to determine where best to situate the study of mentoring (i.e. the 'making of scientists') on the landscape of the history of science and science studies. This task is accomplished by establishing mentoring studies as a link between the robust body...
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    appreciative a timely and expeditious Grant-in-Aid awarded to me by the American Institute of Physics. This

  • A chemical study of the minerals from L-6 chondritic meteorites

    Creator:
    Curtis, David Ballantyne
    Abstract:
    Major and minor minerals have been separated from three L-6 chondritic meteorites (Alfianello, Colby (Wisconsin), and Leedey). Olivine, hypersthene, diopside, feldspar, troilite, chromite, phosphate minerals, and metallic minerals were analyzed for major, minor and trace elements using instrumental neutron activation analysis and radiochemical neutron activation analysis techniques. Concentrations df the...
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    Radiation Center; including myself. This work was partially supported by a fellowship from Gulf General

  • Mars and Popular Astronomy, 1890-1910

    Creator:
    Simpson, Emily M.
    Abstract:
    Beginning in the late-nineteenth century, several dialogues emerged concerning life on Mars. Some supported the notion of an inhabited Mars, citing recent observations of the planet, while others, pointing to a lack of concrete evidence, denied the validity of such a bold hypothesis. The dialogues within and between different...
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    conversations about life on Mars, was the use of atmosphere and elevation as a source of credibility to