Index Catalog // ScholarsArchive@OSU

Simulation of the Pinatubo aerosol cloud in general circulation model

Creator:: Boville, Byron A., Holton, James R., and Mote, Philip W.
Abstract:: A high resolution stratospheric version of the NCAR Community Climate Model (CCM2) with an annual cycle was used to simulate the global transport and dispersion of the Pinatuboa aerosol cloud. A passive tracer was injected into the model stratosphere over the Philippines Islands on model day June15, and the transport...
Resource Type:: Article
Full Text:: the past 10 years, Science, 248, 996-1000, 1990. Labitzke, K., B. Naujokat and M.P. McCormick

Numerical simulation of planetary boundary-layer evolution and mesoscale flow over irregular terrain under daytime heating conditions

Creator:: Ueyoshi, Kyozo
Abstract:: The influence of irregular terrain on the evolution of the daytime planetary boundary layer (PBL) and meso-β scale dry circulations is studied using two three-dimensional hydrostatic σ-coordinate models with different approaches for the PBL parameterizations; the 4-layer model uses the mixed-layer (bulk-layer) approach, while the 7-layer model adopts the eddy-diffusivity...
Resource Type:: Dissertation
Full Text:: Planetary Boundary-Layer Evolution and Mesoscale Flow over Irregular Terrain under Daytime Heating

Two studies concerning rare earth elements : I. Rare earth DTPA complexes as estuarine hydrological tracers : II. Rare earth elemental concentrations in some Pacific Northwest rivers

Creator:: Keasler, Kenneth M.
Abstract:: Two studies were conducted involving rare earth elements. In the first study, the use of rare earth diethylenetriaminepentaacetic acid (DTPA) complexes as stable actiable tracers, a method of stable-isotope tracing with post-sampling neutron activation analysis, was explored. The persistence of rare earth DTPA complexes in estuarine waters was measured in...
Resource Type:: Masters Thesis
Full Text:: Science in Chemistry presented on June 30, 1983. Title: Two studies concerning Rare Earth Elements I

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...
Resource Type:: Dissertation
Full Text:: Structure and Parameterization of Turbulence in the Stably- Stratified Atmospheric Boundary Layer Abstract

Influence of stratification and accelerations on boundary production of vertical motion

Creator:: Park, Soon-Ung
Abstract:: The influence of boundary layer pumping on an externally-forced synoptic-scale flow is examined. The results follow earlier theories of stratified incompressible Boussinesq flow. These theories state that the spin-down time scale and the penetration depth of the influence of boundary layer pumping are inversely proportional to the stratification and directly...
Resource Type:: Dissertation
Full Text:: Science Founda- tion. TABLE OF CONTENTS I. Introduction ......................... 1 Definition and

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:: affected by the underlying earth. The differences between a land surface and a sea surface are dissimilar

Penetrative elements at the top of the atmospheric mixed layer

Creator:: Paumier, James
Abstract:: High resolution data of moisture, temperature and wind velocity collected by aircraft during the 1975 Air Mass Transformation Experiment (ANTEX '75) provide information for detailed investigations of the phenomena occurring at the top of a cloud-topped mixed layer. Joint frequency diagrams of humidity and temperature reveal that for parts of...
Resource Type:: Masters Thesis
Full Text:: of Master of Science in Atmospheric Sciences presented on 5 March 1981 Title: Penetrative Elements

An approach to thermal convection problems in geophysics with application to the earth's mantle and ground water systems

Creator:: Lowell, Robert P.
Abstract:: Two thermal convection problems of geophysical interest are examined, theoretically. First, convection in the earth's mantle is treated on the basis of a one-dimensional 'strip model'. This model results from further simplification of the well known 'Rayleigh model'. For homogeneous, Newtonian fluids, the strip model yields results similar to those...
Resource Type:: Dissertation
Full Text:: APPROACH TO THERMAL CONVECTION PROBLEMS IN GEOPHYSICS WITH APPLIcATIoN TO THE EARTH'S MANTLE AND GROU

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:: .............. 293 LIST OF TABLES Table 1.1 Basic planetary and atmospheric parameters for Mars and Earth (from

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:: Master of Science in Atmospheric Sciences presented on December 17, 1993. Title: A Nonlocal Mixing

ScholarsArchive@OSU

Simulation of the Pinatubo aerosol cloud in general circulation model

Numerical simulation of planetary boundary-layer evolution and mesoscale flow over irregular terrain under daytime heating conditions

Two studies concerning rare earth elements : I. Rare earth DTPA complexes as estuarine hydrological tracers : II. Rare earth elemental concentrations in some Pacific Northwest rivers

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

Influence of stratification and accelerations on boundary production of vertical motion

A numerical study of mesoscale motion in the atmospheric mixed layer

Penetrative elements at the top of the atmospheric mixed layer

An approach to thermal convection problems in geophysics with application to the earth's mantle and ground water systems

Modeling of forced planetary waves in the Mars atmosphere

A nonlocal mixing formulation for the atmospheric boundary layer

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