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Figure 4.9: Options for simulation of terrain adjustments in AUSPLUME

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Figure 4.9 shows different options for terrain correction in Ausplume. The ISC option assumes no correction and projects a plume directly into a hill. The 'no terrain' option will lift a plume up and over a hill maintaining an equal distance above the hill at all times. The Egan terrain correction smoothes the 'no terrain' correction depending up the stability class.