Experiments with a simple hurricane-interacting ocean model
Corgnati, Leino Bartholomew, Jr.
Elsberry, Russell L.
MetadataShow full item record
The equation developed by Riehl (1963) for a steady, symmetrical hurricane are used to specify a vortex over a fixed depth boundary layer, which interacts with a simple ocean model. Only vertical mixing in the surface layer is included in the oceanic portion of the model. Interaction of the atmosphere and the ocean occurs through the prediction of boundary layer parameters. Bulk aerodynamic equations are used to calculate the air-sea interaction, Comparison of the predicted boundary parameters with observed mature tropical storm shows good agreement for all variables except the specific humidity, which exceeds saturation. Two attempts to correct for this situation have shown that small changes in the surface moisture and temperature values strongly affect the maximum wind speed predicted. The proportion of the water vapor transported out of the top of the boundary layer without adding latent heat to the boundary layer appears to be an important factor in determining the intensity of a steafy-state hurricane. Although the ocean model is quite simple, realistic horizontal ocean temperature profiles with respect to the hurricane center were obtained. However, the magnitude of changes in oceanic heat content and the sea-surface temperatures were smaller than expected in actual hurricanes, since advection and upwelling effects were not included in the ocean model.
Approved for public release; distribution is unlimited
Showing items related by title, author, creator and subject.
A numerical study of the nonlinear interaction of Hurricane Camille with the Gulf of Mexico Loop Current Ly, Le Ngoc; Kantha, Lakshmi H. (1993);A three-dimensional, primitive equation, ocean general circulation model is used to study the response of the Gulf of Mexico to Hurricane Camille (1969). The free-surface dynamics and the mixed-layer features are included ...
Grigsby, Stanley Holmes (Monterey, California. Naval Postgraduate School, 1975);The time dependent mixed-layer depth and temperature response of a two-layer hydrothermodynamic ocean model to a moving hurricane model was investigated. The hurricane model was that of Elsberry, Pearson, and Corgnati ...
Hurricane Isabel (2003): new insights into the physics of intense storms Pt.1 mean vortex structure and maximum intensity estimates Montgomery, Michael T.; Bell, Michael M.; Aberson, Sim D.; Black, Michael L. (American Meteorological Society, 2006);This study is an observational analysis of the inner-core structure, sea surface temperature, outflow layer, and atmospheric boundary layer of an intense tropical cyclone whose intensity and structure is consistent with ...