Abera, Debebe (2007) Simulation of the Effect of Random Geopotential Height Disturbance on Air Flow on a Barotropic Atmosphere Using Coarse Resolution Grid. Masters thesis, Addis Ababa University.
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Abstract
The atmosphere is chaotic in nature and full of random processes. This random process affects the atmospheric field variables directly or indirectly. In this thesis, to identify the effect of random height disturbance, linearized shallow water equation is used as a model. The equation is solved numerically using finite difference method on nonstaggered Arakwan grid A. When the geopotential height is randomly disturbed, the initial distribution of the velocity field creates a wave of a standing type that consists of an enhanced and diminished pattern depending on the magnitude of the perturbation. However in the presence of mean flow, the perturbed system and the initial distribution of the field variables are carried away based on the direction of the mean flow.
| Item Type: | Thesis (Masters) |
|---|---|
| Subjects: | Q Science > Q Science (General) Q Science > QC Physics T Technology > T Technology (General) |
| Divisions: | Africana |
| Depositing User: | Selom Ghislain |
| Date Deposited: | 18 Jun 2018 09:38 |
| Last Modified: | 18 Jun 2018 09:38 |
| URI: | http://thesisbank.jhia.ac.ke/id/eprint/4280 |
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