Journal article
The transport and formation of photochemical oxidants in central Japan
Atmospheric environment, Vol.23(2), pp.363-393
1989
DOI: 10.1016/0004-6981(89)90584-2
Abstract
Major aspects of the physical and chemical transformations of the oxidant-polluted air mass resulting from high precursor emission fluxes of
NO
x
and reactive hydrocarbons (HCs) in the Tokyo metropolitan area and their subsequent long-range transport (LRT) within the Kanto Plain and Nagano Prefecture regions of Japan are evaluated through field observations and model analysis. The field study was conducted in the Kanto District and the Nagano Prefecture in Japan in July 1983. The LRT mechanism in this region is found to involve land/sea breeze, mountain/valley winds, steady onshore winds, strong thermal low and subsidence inversions under a synoptic-scale high pressure.
Detailed diagnostic analysis of the LRT event observed on 27 and 28 July 1983 is presented. The analysis is performed using a detailed Eulerian transport/chemistry model (i.e. the STEM-II model). Ozone profiles in the Tokyo metropolitan area show typical diurnal variation with maximum concentrations of ~ 60 ppb in the early afternoon. Beginning about noon local time an extended sea breeze circulation develops and transports this
NO
x
and HC polluted air mass inland. Ozone concentrations in excess of 160 ppb occur in this air mass as it is transported into the inland mountainous regions (located ~ 150 km downwind of Tokyo) in the early evening.
Details
- Title: Subtitle
- The transport and formation of photochemical oxidants in central Japan
- Creators
- Young Soo ChangGregory R CarmichaelHidemi Kurita - Nagano Research Institute for Health and Pollution, Nagano, 380 Nagano, JapanHiromasa Ueda - National Institute of Environmental Studies, Tsukuba, 305 Ibaraki, Japan
- Resource Type
- Journal article
- Publication Details
- Atmospheric environment, Vol.23(2), pp.363-393
- Publisher
- Elsevier B.V
- DOI
- 10.1016/0004-6981(89)90584-2
- ISSN
- 0004-6981
- eISSN
- 1873-2844
- Language
- English
- Date published
- 1989
- Academic Unit
- Civil and Environmental Engineering; Chemical and Biochemical Engineering; Nursing
- Record Identifier
- 9984003946202771
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