A multi-level, quasi-geostrophic model was designed to study the tropics and middle latitude general circulation for the northern hemisphere winter. A coarse mesh (5(DEGREES) x 5(DEGREES)) domain covering global belt from 30(DEGREES)S to 70(DEGREES)N with three beta-planes was used. A time-independent heating, used in this study, is composed of latent heating in low latitudes and a heating derived from the mean winter motion field for middle and high latitudes. The effect of planetary scale smoothed topography was included as a lower boundary. / The initial field was derived from the mean January, 1978 data obtained from the National Meteorological Center (NMC). Simulation with real data initial state showed reasonable agreement with mean January flow field in terms of planetary scale features. Several other sensitivity experiments were carried out with zonal flow for the initial state. The main objective of designing these experiments was to assess the separate effects of topography and differential heating on global and regional scales. / Results of these experiments were evaluated within the framework of quasi-geostrophic energetics. The importance of terrain and differential heating in defining and maintaining the subtropical jet stream is demonstrated. / Source: Dissertation Abstracts International, Volume: 41-11, Section: B, page: 4153. / Thesis (Ph.D.)--The Florida State University, 1981.
| Identifer | oai:union.ndltd.org:fsu.edu/oai:fsu.digital.flvc.org:fsu_74362 |
| Contributors | ABUGHALYA, HASHMI HADI., Florida State University |
| Source Sets | Florida State University |
| Detected Language | English |
| Type | Text |
| Format | 165 p. |
| Rights | On campus use only. |
| Relation | Dissertation Abstracts International |
Page generated in 0.002 seconds