Index Catalog // ScholarsArchive@OSU

Atmospheric boundary layer coupling to midlatitude mesoscale sea surface temperature anomalies

Creator:: Thum, Nicolai
Abstract:: This thesis examines the mechanisms that couple the monthly-averaged atmospheric boundary layer (ABL) to open-ocean sea surface temperature (SST) perturbations on scales of 50-500 km. The observed positive correlation between surface wind speed anomalies and SST anomalies is successfully simulated using the Weather Research and Forecasting (WRF) model. In numerical...
Resource Type:: Dissertation
Full Text:: Boundary Layer Coupling to Midlatitude Mesoscale Sea Surface Temperature Anomalies Abstract approved

The use of conserved variables in the modeling and parameterization of shallow cumulus trade wind boundary layers

Creator:: Barbour, Philip L. (Philip Lee), 1960-
Abstract:: A time dependent model of the shallow, tropical convective boundary layer is developed and tested. To simplify the treatment of thermodynamic processes and return to first principles of physics, conserved quantities of entropy and total water density are used as primary model variables. In addition, a new shallow cumulus parameterization...
Resource Type:: Masters Thesis
Full Text:: . Abstract approved: A time dependent model of the shallow, tropical convective boundary layer is developed

An observational study of the energetics and dynamical aspects of GATE cloud clusters

Creator:: Wang, Jough-tai
Abstract:: Thermodynamical and dynamical aspects of tropical cloud clusters are studied using data from the GARP Atlantic Tropical Experiment (GATE). The data set used in this study is a three-dimensional gridded set of upper-air analyses constructed by Ooyama and Chu (Hurricane Research Division, AOML/NOAA and SSEC-University of Wisconsin) for wind data...
Resource Type:: Dissertation
Full Text:: observations, surface-based cloud photography, and a variety of boundary layer measurements. Rouze and Betts

The relationship of precipitation in the western United States to variations in the outgoing long-wave radiation field over the tropical Pacific : the role of the mid-latitude circulation

Creator:: Twining, David S.
Abstract:: The relationship between the outgoing long-wave radiation (OLR) field over the tropical Pacific and wintertime monthly precipitation for the western U. S. is investigated, using the mid-latitude upper-air circulation as an intermediary. Principal components (PC's) of the 500mb monthly averaged height field over the NE Pacific and western North America...
Resource Type:: Dissertation
Full Text:: layer, 80-wave triangular truncation (T80) version of the spectral model the NMC Medium-Range Forecast

Statistical relationships between the mesoscale organization of convection, precipitation and the large-scale wind fields during the GATE

Creator:: De Silva, Sirilath J.
Abstract:: Data from the GARP Atlantic Tropical Experiment (GATE) was analysed in an exploratory manner to discover the characteristics of mesoscale organization of convection and it's relationship to large-scale wind profiles. Automated methods were developed to identify the convective cells and their linear organization. These automated methods use a median high-pass...
Resource Type:: Masters Thesis
Full Text:: inhomogeneity of the atmosphere produced by the large turbulent eddies in the boundary layer. It was seen that

The energy budget and mass balance of the OSU atmospheric general circulation model viewed in terms of constant pressure layers

Creator:: Oh, Jai-Ho
Resource Type:: Masters Thesis
Full Text:: - stantial fraction of the mass coming into the plateau region goes up to the upper layer on the upwind side

Air-sea heat exchange along the northern sea surface temperature front in the eastern tropical Pacific

Creator:: Thum, Nicolai
Abstract:: The atmospheric response to the oceanic forcing in the eastern Pacific along the northern equatorial sea surface temperature (SST) front is investigated in terms of sensible and latent heat flux during the 6-month period 28 July 1999 through 27 January 2000. Of particular interest is the atmospheric boundary layer (ABL)...
Resource Type:: Masters Thesis
Full Text:: the atmospheric boundary layer (ABL) response to oceanic Tropical Instability Waves (TIWs) that

An observational study of the wind fields associated with GATE cloud clusters

Creator:: Tollerud, Edward I.
Abstract:: The wind and thermodynamic fields associated with eastern Atlantic cloud clusters are studied using radiosonde data from the Global Atmospheric Research Program Atlantic Tropical Experiment (GATE). These data are from the gridded set of winds prepared by Dr. Katsuyuki Ooyama (AOML-NOAA) and Dr. Jan-Hwa Chu (SSEC, University of Wisconsin, Madison)...
Resource Type:: Dissertation
Full Text:: residual is particularly large in the boundary layer and upper troposphere. The fields of winds and

Surface heat flux estimates from NCAR electra data over the pacific warm pool during TOGA COARE

Creator:: Greiser, Christine M.
Abstract:: The warm pool region of the western tropical Pacific is of particular interest to atmospheric dynamics because it represents a significant source of energy to the atmosphere. A better understanding of heat transfer driven by mesoscale and turbulent circulations within this region could lead to improved global circulation models, and...
Resource Type:: Masters Thesis
Full Text:: system. Improved parameterization of air-sea fluxes, planetary boundary layer processes, and oceanic

Subseasonal variability in a two-level atmospheric general circulation model

Creator:: Kushnir, Yochanan
Abstract:: The dynamical processes which maintain atmospheric disturbances in regions of strong wintertime variability of the northern hemisphere are examined using data from a GCM simulation. Time series of the dependent variables and diabatic heating components from 10 Northern Hemisphere winters simulated by the Oregon State University two-level GCM are used....
Resource Type:: Dissertation
Full Text:: circulation with its boundary conditions varying through a fixed annual cycle. The history of state variables

ScholarsArchive@OSU

Atmospheric boundary layer coupling to midlatitude mesoscale sea surface temperature anomalies

The use of conserved variables in the modeling and parameterization of shallow cumulus trade wind boundary layers

An observational study of the energetics and dynamical aspects of GATE cloud clusters

The relationship of precipitation in the western United States to variations in the outgoing long-wave radiation field over the tropical Pacific : the role of the mid-latitude circulation

Statistical relationships between the mesoscale organization of convection, precipitation and the large-scale wind fields during the GATE

The energy budget and mass balance of the OSU atmospheric general circulation model viewed in terms of constant pressure layers

Air-sea heat exchange along the northern sea surface temperature front in the eastern tropical Pacific

An observational study of the wind fields associated with GATE cloud clusters

Surface heat flux estimates from NCAR electra data over the pacific warm pool during TOGA COARE

Subseasonal variability in a two-level atmospheric general circulation model

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