Two common questions in dealing with building downwash are “How far away would this stack have to move to avoid the downwash of that building?” and “Why does that building affect this stack?”  The Height of Wake Effect (HWE) view in Downwash Analyst provides the answer to both questions.  This view shows the area around a building - downwind, upwind, and to either side - in which it will have an effect on stacks in AERMOD/BPIP.  Another potentially confusing element of AERMOD/BPIP's algorithm is made immediately clear thanks to BREEZE Downwash Analyst's 3D views. 

Downwash Analyast_HWE Screenshot

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Fundamentals of Air Dispersion Modeling

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AERMOD Modeling Computer Lab

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