Recent improvements in ozone modeling in New England during the July 7--8, 1988 ozone episode
- Earth Tech, Concord, MA (United States)
Current environmental regulations require that State Implementation Plans (SIPs) must show a modeling demonstration of ozone attainment by a date mandated by the 1990 Clean Air Act Amendment. The US Environmental Protection Agency (EPA) currently recommends the use of the UAM-IV photochemical model (EPA, 1990a) for use in the SIP ozone attainment demonstrations. Photochemical modeling with UAM-IV has been conducted by the authors over the past four years on the modeling domain. During this period, substantial improvements have been made to the emissions inventories used, the methods of estimating boundary and initial conditions, and, most importantly, the meteorological fields used to transport and chemically drive ozone production. Most of the model development has been initially conducted on the July 7--8, 1988 ozone episode period and then applied to subsequent episode simulations. The July 7--8 period is one of the most severe and possibly the most difficult ozone episodes to simulate for the New England nonattainment regions. The authors report on a comparative case study of ozone predictions for July 8, 1988 made by the UAM-IV and a more advanced alternative model known as CALGRID.
- OSTI ID:
- 422920
- Report Number(s):
- CONF-960127--
- Country of Publication:
- United States
- Language:
- English
Similar Records
Comparison of the UAM and UAM-V photochemical models for three Atlanta-area ozone episodes
Compilation of photochemical models` performance statistics for 11/94 ozone SIP applications. Final report