Naslov
Modeling of ozone, nitrogen oxides and particles in the American Northwest

Autori
Stockwell, William R. ; Koračin, Darko ; Bencetić Klaić, Zvjezdana ; McCord ; Travis E.

Vrsta, podvrsta i kategorija rada
Sažeci sa skupova, sažetak, znanstveni

Izvornik
Proceedings of the 7th International Conference on Atmospheric Sciences and Applications to Air Quality / Xx - , 2000

Skup
7th International Conference on Atmospheric Sciences and Applications to Air Quality

Mjesto i datum
Taipei, Tajvan, 2000

Vrsta sudjelovanja
Ostalo

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
xx

Sažetak
We are developing modeling systems that can be applied to evaluate the causes of ozone and other photochemical air pollutants in Nevada and the Western United States. Central and western California along with Nevada have unique air pollution problems. This geographical region is characterized by air quality that varies from relatively good to relatively poor. Typically, air flows from the San Francisco Bay area to the central San Joaquin Valley where the air stream may split to transport pollutants either down the San Joaquin Valley and to northern California or to Nevada. High emissions of nitrogen oxides and anthropogenic volatile organic compounds make the formation of ozone and secondary particles to be a problem in these regions. The object of this research is to develop regional air quality models to estimate the atmospheric concentrations of air pollutants and the depositions of sulfates and nitrates to sensitive regions in the western United States. These models include the assessment of the aerosol particle formation reactivity of nitrogen oxide (Nox) emissions, 3-d air quality modeling results and meteorological simulations in real time. We have evaluated several state-of-the science meteorological and air quality models including the Mesoscale Meteorological Model, version 5 (MM5), the Regional Acid Deposition Model (RADM), the Meteorological Chemistry Climate Model (MCCM ; MM5 with coupled atmospheric chemistry ; Grell et al., 1998) and the Comprehensive Air Quality Model with Extensions (CAMx). The models MM5 and CAMx were selected for our initial application. CAMx was selected because it is a state-of-the-science air quality model that is compatible with MM5 and it can be applied to research on atmospheric chemistry ranging from the regional to urban scale. CAMx has been used to simulate summertime conditions for a domain over the western United States. The simulations include several cases designed to estimate the sensitivity of the model changes in meteorology atmospheric chemistry and emissions.

Izvorni jezik
Engleski

Znanstvena područja
Geologija

POVEZANOST RADA