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Filtering by: Creator Bethel, Jeffrey W. Remove constraint Creator: Bethel, Jeffrey W. Advisor Barnes, Jeffrey R. Remove constraint Advisor: Barnes, Jeffrey R.

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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...
    Resource Type:
    Dissertation
    Full Text:
    Forced Planetary Waves in the Mars Atmosphere Abstract approved: Jeffrey R. Barnes Mariner 9 and Viking

  • Diurnal and subdiurnal variability in the Mars Pathfinder Presidential meteorology sessions

    Creator:
    Bennett, Scott
    Abstract:
    The Mars Pathfinder (MPF) arrived on the Martian surface on 4 July 1997 to become only the third successful landed mission to Mars, recording surface meteorological data intermittently over a period of 83 Martian days ("sols"). The in situ observations made by the MPF meteorology (MET) experiment were recorded at...
    Resource Type:
    Masters Thesis
    Full Text:
    Variability in the Mars Pathfinder Presidential Meteorology Sessions Abstract approved: Jeffrey R. Barnes

  • Numerical simulations of nonlinear baroclinic instability with a spherical wave-mean flow model

    Creator:
    Wang, Chunzai
    Abstract:
    A global, multi-level, wave-mean flow model based on an approximate version of the primitive equations is developed to investigate the development of a baroclinic wave field initially confined to a single zonal wavenumber. The effects of physical processes (surface drag and thermal damping) and internal diffusion on the evolution have...
    Resource Type:
    Masters Thesis
    Full Text:
    Nonlinear Baroclinic Instability with a Spherical Wave-Mean Flow Model Abstract Approved: V Jeffrey R

  • Tracer transport in the Martian atmosphere as simulated by a Mars GCM

    Creator:
    Walsh, Thomas D.
    Abstract:
    This paper investigates the atmospheric circulation and transport characteristics of the Martian atmosphere (as modeled by a Mars GCM) for three sets of conditions. The conditions are based on a combination of season and dust loading (as parameterized by the optical depth, τ). The first experiment is for the Northern...
    Resource Type:
    Masters Thesis
    Full Text:
    is given as a mass mixing ratio of tracer species to air. Let u, v, and w be the variables of

  • The effects of clouds on transient baroclinic eddies in a Mars General Circulation Model

    Creator:
    Rucker, Michael S.
    Abstract:
    The low-level baroclinic eddy activity seen in the NASA Ames Mars General Circulation Model (MGCM) for simulations under three annual dust cycles are characterized. Simulations were conducted with both radiatively active and radiatively inert clouds (RAC and non-RAC, respectively) for 11 continuous annual cycles for each dust case. Model results...
    Resource Type:
    Masters Thesis
    Full Text:
    : Jeffrey R. Barnes The low-level baroclinic eddy activity seen in the NASA Ames Mars General

  • 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...
    Resource Type:
    Dissertation
    Full Text:
    approved: Jeffrey R. Barnes The Penn-StateINCAR MM5 mesoscale model was adapted for mesoscale

  • Real time quality control for hydrometeorological data

    Creator:
    Kotwica, Kyle
    Abstract:
    This thesis investigates the feasibility of implementing a real time quality control program into a data stream of hydrometeorlogical data. The vast array of data used in the forecasting of river levels and avalanches calls for a point of entry quality control method that is both efficient from a communications...
    Resource Type:
    Masters Thesis
    Full Text:
    ) a) 15 () C .10 .05 .00 I I I I I I I I C .0 > C CT) a > w c -) -) < (J) LI Z 0 Figure 3

  • Baroclinic eddies in the Martian atmosphere : a general circulation model study

    Creator:
    Matheson, Mark
    Abstract:
    A variety of general circulation model experiments are performed to investigate the influence of seasonality and topography on the strength of baroclinic eddies in the Martian atmosphere. Three different models are used: a full physics model, a simplified physics model, and a zonally symmetric simplified physics model. All three models...
    Resource Type:
    Masters Thesis
    Full Text:
    rate. The substantial derivative is defined as D a a a a-+u+ v+w Dt at dx ay dz (2.6) These