Application of Personal Computers to Lagrangian Modeling in Complex Terrain
Personal computers are now capable of solving complex problems related to the transport and diffusion of materials released into the atmosphere. Making such calculations rapidly and “on the spot” would be of great use in planning evacuations and cleanup activities when toxic materials are spilled as the result of some accident. It would be desirable if such calculations were not limited to the simple, steady-state assumptions usually required for such applications. A more realistic simulation, accounting for wind fields which change in space and time and variations in the meteorological conditions would be better. As personal micro-computers become ever more readily available, it is no longer unreasonable to believe that these capabilities could be supplied relatively cheaply. Mass- produced personal computers are already relatively inexpensive. In fact, their cost is, on an equivalent basis, less than that of the mechanical desk calculator of 20 years ago. Personal computers are becoming more powerful every year. However, they have limitations in the amount of core storage that is available and in their speed, so their use requires careful programming and some simplifications of the theory.
KeywordsCovariance Smoke Advection Clarification
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