气候变化领域集成服务门户(CCPortal): Contribution distinguish between emission reduction and meteorological conditions to Blue Sky

CCPortal

DOI	10.1016/j.atmosenv.2018.07.015
	Contribution distinguish between emission reduction and meteorological conditions to Blue Sky
	Zhang, Yangmei; Wang, Jizhi; Yang, Yuanqin; Li, Duo; Wang, Yaqiang; Che, Huizheng; Deng, Guo
通讯作者	Wang, JZ (通讯作者)
发表日期	2018
ISSN	1352-2310
EISSN	1873-2844
起始页码	209
结束页码	217
卷号	190
英文摘要	Emissions and meteorological conditions are two important factors on aerosol accumulation or dilution. Identifying the contributions of both emission reduction (ER) and meteorological conditions (MC) on aerosol pollution abatement is a hot topic recently. An objective assessment of ER measures' contribution on improving air quality is also of great significance. This study focuses on objective assessment for the air quality improvements (known as Blue Sky) due to ER measures. A quantitative algorithm on identifying the contribution of ER measures was proposed. The emission-reducing contributions to the Beijing blue (August 20 to September 3, 2015, Beijing, International Association of Athletics Federations World Athletics Championships), the Asia Pacific Economic Cooperation (APEC) blue (November 10-11, 2014, Beijing, APEC meeting), and the Games blue (November 12-27, 2010, Guangzhou, 16th Asian Games) were studied based on pollutant MC of Parameters Linking Air-quality to Meteorological Conditions index. Two individual evaluation algorithms of an average change rate algorithm and a parameter fitting method were developed in this study. Results showed that the special comprehensive emission-reducing measures contributions were up to 26%-30% for Beijing blue. By analyzing the circulation anomaly during the Beijing blue with 30-year average historical atmospheric circulation and the real-time information in 3rd September 2015, we concluded that the North China Cold Vortex, as unusual stable circulation system stagnation, provides favorable weather conditions for the Beijing blue. This finding Indicates that approximately 70%-74% of the Beijing blue came from long terms of favorable weather conditions. This algorithm for evaluating the contributions of ER and MC was also applied for the APEC blue and the Games blue. The contribution of emission-reducing measures on the APEC blue and the Games blue accounted for 36% and 25%, respectively. In summary, the favorable MC would contribute 65%-75% to the Blue Sky in China and acts as a remarkable role on the improvement of air quality.
关键词	CHINA SUMMER POLLUTION AEROSOLS LAYER
英文关键词	Air quality; Blue Sky; Meteorological conditions; Emission reducing; Assessment; North China Cold Vortex
语种	英语
WOS研究方向	Environmental Sciences & Ecology ; Meteorology & Atmospheric Sciences
WOS类目	Environmental Sciences ; Meteorology & Atmospheric Sciences
WOS记录号	WOS:000444659400020
来源期刊	ATMOSPHERIC ENVIRONMENT
来源机构	中国科学院青藏高原研究所
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/259198
推荐引用方式 GB/T 7714	Zhang, Yangmei,Wang, Jizhi,Yang, Yuanqin,et al. Contribution distinguish between emission reduction and meteorological conditions to Blue Sky[J]. 中国科学院青藏高原研究所,2018,190.
APA	Zhang, Yangmei.,Wang, Jizhi.,Yang, Yuanqin.,Li, Duo.,Wang, Yaqiang.,...&Deng, Guo.(2018).Contribution distinguish between emission reduction and meteorological conditions to Blue Sky.ATMOSPHERIC ENVIRONMENT,190.
MLA	Zhang, Yangmei,et al."Contribution distinguish between emission reduction and meteorological conditions to Blue Sky".ATMOSPHERIC ENVIRONMENT 190(2018).