气候变化领域集成服务门户(CCPortal): Ozone pollution over china and india: Seasonality and sources

CCPortal

DOI	10.5194/acp-20-4399-2020
	Ozone pollution over china and india: Seasonality and sources
	Gao M.; Gao J.; Zhu B.; Kumar R.; Lu X.; Song S.; Zhang Y.; Jia B.; Wang P.; Beig G.; Hu J.; Ying Q.; Zhang H.; Sherman P.; B. McElroy M.
发表日期	2020
ISSN	16807316
起始页码	4399
结束页码	4414
卷号	20 期号:7
英文摘要	A regional fully coupled meteorology-chemistry model,Weather Research and Forecasting model with Chemistry (WRF-Chem), was employed to study the seasonality of ozone (O3) pollution and its sources in both China and India. Observations and model results suggest that O3 in the North China Plain (NCP), Yangtze River Delta (YRD), Pearl River Delta (PRD), and India exhibit distinctive seasonal features, which are linked to the influence of summer monsoons. Through a factor separation approach, we examined the sensitivity of O3 to individual anthropogenic, biogenic, and biomass burning emissions. We found that summer O3 formation in China is more sensitive to industrial and biogenic sources than to other source sectors, while the transportation and biogenic sources are more important in all seasons for India. Tagged simulations suggest that local sources play an important role in the formation of the summer O3 peak in the NCP, but sources from Northwest China should not be neglected to control summer O3 in the NCP. For the YRD region, prevailing winds and cleaner air from the ocean in summer lead to reduced transport from polluted regions, and the major source region in addition to local sources is Southeast China. For the PRD region, the upwind region is replaced by contributions from polluted PRD as autumn approaches, leading to an autumn peak. The major upwind regions in autumn for the PRD are YRD (11 %) and Southeast China (10 %). For India, sources in North India are more important than sources in the south. These analyses emphasize the relative importance of source sectors and regions as they change with seasons, providing important implications for O3 control strategies. © Author(s) 2020. This work is distributed under the Creative Commons Attribution 4.0 License.
关键词	atmospheric chemistry atmospheric modeling atmospheric pollution biogenic emission ozone pollutant source seasonality China Guangdong India North China Plain Yangtze Delta Zhujiang Delta
语种	英语
来源机构	Atmospheric Chemistry and Physics
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/132102
推荐引用方式 GB/T 7714	Gao M.,Gao J.,Zhu B.,et al. Ozone pollution over china and india: Seasonality and sources[J]. Atmospheric Chemistry and Physics,2020,20(7).
APA	Gao M..,Gao J..,Zhu B..,Kumar R..,Lu X..,...&B. McElroy M..(2020).Ozone pollution over china and india: Seasonality and sources.,20(7).
MLA	Gao M.,et al."Ozone pollution over china and india: Seasonality and sources".20.7(2020).