Record Details
Simulation of tropical pacific circulation anomalies with linear atmosphere and ocean models
ScholarsArchive at Oregon State University
| Field | Value |
|---|---|
| Title | Simulation of tropical pacific circulation anomalies with linear atmosphere and ocean models |
| Names |
Dixit, Sanjay
(creator) Gates, W. Lawrence (advisor) |
| Date Issued | 1987-08-12 (iso8601) |
| Note | Graduation date: 1988 |
| Abstract | A simple atmosphere and ocean model of relevance to El Nino and Southern Oscillation (ENSO) is discussed. Both the atmosphere and ocean models are two layer, three dimensional, linear and baroclinic, and generally follow the Oregon State University coupled general circulation model. However, the parameterization differs considerably from previous work in the treatment of the atmospheric latent heat release. This new parameterization follows the formula used in the theory of conditional instability of the second kind (CISK). In this the latent heat release is proportional to the low level convergence. Utilizing the "Comprehensive Ocean Atmosphere Data Set" (COADS), which contains all oceanic and atmospheric surface variables over the global ocean from 1946-1979, experimental model results are discussed for determination of the validity of the parameterizations. In particular, the years 1957, 1965 and 1972 in which El Nino events occurred are examined. The parameterization is deemed to be realistic, and should permit simulation of the El Nino upon coupling the two models. |
| Genre | Thesis/Dissertation |
| Topic | El Niño Current |
| Identifier | http://hdl.handle.net/1957/28619 |
