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Nonmethane hydrocarbons and ozone in three rural southeast United States national parks: A model sensitivity analysis and comparison to
 

Summary: Nonmethane hydrocarbons and ozone in three rural southeast United
States national parks: A model sensitivity analysis and comparison to
measurements
Daiwen Kang1
and Viney P. Aneja
Department of Marine, Earth, and Atmospheric Sciences, North Carolina State University, Raleigh, North Carolina, USA
Rohit Mathur
Carolina Environmental Program, University of North Carolina, Chapel Hill, North Carolina, USA
John D. Ray
Air Resources Division, National Park Service, Denver, Colorado, USA
Received 18 October 2002; revised 28 April 2003; accepted 24 July 2003; published 8 October 2003.
[1] A detailed modeling analysis is conducted focusing on nonmethane hydrocarbons and
ozone in three southeast United States national parks for a 15-day time period (1429 July
1995) characterized by high O3 surface concentrations. The three national parks are
Smoky Mountains National Park (GRSM), Mammoth Cave National Park (MACA),
and Shenandoah National Park (SHEN), Big Meadows. A base emission scenario and
eight variant predictions are analyzed, and predictions are compared with data observed at
the three locations for the same time period. Model-predicted concentrations are higher
than observed values for O3 (with a cutoff of 40 ppbv) by 3.0% at GRSM, 19.1% at
MACA, and 9.0% at SHEN (mean normalized bias error). They are very similar to

  

Source: Aneja, Viney P. - Department of Marine, Earth and Atmospheric Sciences, North Carolina State University

 

Collections: Environmental Sciences and Ecology; Geosciences