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Ozone Photochemistry And Transport Of The Nashville Urban Plume During The 1994 Southern Oxidants Study (SOS)

During a four week summer intensive in 1994, chemical and meteorological measurements including a boundary layer (BL) radar wind profiler, were made at Hendersonville (36.33°N, 86.64°W, 180 m a.s.l.) a suburban ground site 13 km to the north-northeast of Nashville, Tennessee, that allowed the study of photochemical ozone production in an urban plume and the effects of horizontal drift (advection) and vertical mixing (entrainment). The elevation change in the larger region was ± 30 m reflecting the flatness of the Cumberland river basin with heavily forested areas to the west and northwest of Nashville. The closest point sources were a relatively small DuPont facility 7 km to the south, and much larger coal-fired power plants: Gallatin, 20 km to the east, Cumberland and Johnsonville, 95 and 125 km to the west.