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Computational aspects of a fine-mesh sea breeze model

Liu, N. K. (1987) Computational aspects of a fine-mesh sea breeze model. PhD thesis, Murdoch University.

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Abstract

Pielke's mesoscale numerical model was set up on minicomputers using a memory optimisation strategy and modification of the model constraints. Model performance was compared with that achieved using a CRAY and demonstrates that the minicomputers can reproduce similar results with a high degree of precision although at the expense of running time.

The model was applied and validated for the 2-D and 3-D cases for the Perth region of Western Australia using a 2 km fine mesh grid stretching to 10 km. The 2-D validation illustrates that the predicted profiles display patterns and trends in close agreement with observations. However, the model is unable to simulate the sharp jump in mixing ratio accompanying the arrival of the sea breeze.

The 3-D validation demonstrates the influence of lateral geographic variation and the predicted fields are comparable to observations. The 3-D model was extended to investigate and predict the temperature variations across the Perth metropolitan area. It illustrates the propagation of a sea breeze front across the region, the role of local river systems, and the creation of intensive temperature gradients along the coast.

Item Type: Thesis (PhD)
Murdoch Affiliation: School of Environmental and Life Sciences
Notes: Note to the author: If you would like to make your thesis openly available on Murdoch University Library's Research Repository, please contact: repository@murdoch.edu.au. Thank you.
Supervisor(s): Kloeden, Peter and Lyons, Tom
URI: http://researchrepository.murdoch.edu.au/id/eprint/51649
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