A hybrid modeling technique to address coastal meteorology and complex terrain in the San Diego photochemical modeling domain
- San Diego Air Pollution Control District, CA (United States)
- Atmospheric Information Systems, Norman, OK (United States)
San Diego County exceeds the ambient air quality standard for ozone of 0.12 ppm and is classified as a Serious nonattainment area. The county`s highest ozone concentrations, greater than 0.20 ppm, occur during episodes of transport of pollutants from the greater Los Angeles area. The San Diego Air Pollution Control District (SDAPCD) demonstrated attainment of the ozone standard by 1999 using the Urban Airshed Model (UAM), a grid based photochemical model. Following guidance from the US Environmental Protection Agency, the attainment demonstration included modeling a transport episode, as well as an episode caused primarily by local emission sources. The San Diego Air Pollution Control District conducted an intensive field measurement program in the summer of 1989 (SDAPCD 1990a and 1990b) as part of the San Diego Air Quality Study. SPAPCD`s ten routine sites were supplemented to create a network of 28 aerometric stations, 5 upper-air balloon sites, a Doppler acoustic sounder, a boat and two aircraft. The observations from this field study were used to prepare the inputs to the UAM and to evaluate model performance.
- OSTI ID:
- 422960
- Report Number(s):
- CONF-960127--
- Country of Publication:
- United States
- Language:
- English
Similar Records
Application of the CALMET meteorological model to UAM modeling in the northeast
Comparison of the UAM and UAM-V photochemical models for three Atlanta-area ozone episodes