A teleconnection between sea surface temperature in the central and eastern Pacific and wintertime haze variations in southern China

doi:10.1007/s00704-020-03434-7

	A teleconnection between sea surface temperature in the central and eastern Pacific and wintertime haze variations in southern China
	Cheng, Xugeng 1,6; Liu, Jane 1,5; Zhao, Tianliang 6; Gong, Sunling 3,4; Xu, Xiangde 2; Xie, Xiaoning ; Wang, Rong 1
刊名	THEORETICAL AND APPLIED CLIMATOLOGY
	2020-10-20
页码	11
ISSN号	0177-798X
DOI	10.1007/s00704-020-03434-7
通讯作者	Liu, Jane(janejj.liu@utoronto.ca) ; Zhao, Tianliang(tlzhao@nuist.edu.cn)
英文摘要	Haze pollution in recent decades varies largely with both pollutant emissions and meteorological conditions. Using the discrete wavelet transform (DWT) method, we separate these two influences on haze variations in southern China in the time series of haze observations from 1981 to 2011. This helps us to identify the meteorological influence on interannual variation in haze occurrences in southern China and thus observe a teleconnection between the thermal forcing of sea surface temperature (SST) in the central and eastern Pacific and wintertime haze occurrences in southern China (R= - 0.51,p< 0.05). The total haze days in winter is highest among all seasons over southern China and the climotological mean of number of winter haze days is 7.5 days for the region. Compared with the normal winters, the regional mean of the number of haze days in southern China is reduced by similar to 5 days in the winters with above-normal Nino3.4 SST (during El Nino phases), but increased by similar to 4 days in the winters with below-normal Nino3.4 SST (during La Nina phases). In the warm SST winters, the cumulative consequences of strong winds, more precipitation, and a more unstable atmosphere with an "upper colder and lower warmer" vertical pattern leading to more ascendance can all hinder haze formation, whereas in the cold SST winters, opposite meteorological conditions are favorable to haze formation. These meteorological conditions induced by anomalous SST make wintertime haze pollution in southern China vary from year to year to a large extent. This study suggests a strong sensitivity of winter haze occurrences in southern China to the viability of the SST in the central and eastern Pacific.
资助项目	National Natural Science Foundation of China[41830965] ; National Natural Science Foundation of China[91744209] ; National Key R&D Program Pilot Projects of China (CN)[2016YFC0203304]
WOS关键词	LONG-TERM VARIATIONS ; EL-NINO ; SST-ANOMALIES ; CLIMATE MODULATION ; AIR-QUALITY ; POLLUTION ; IMPACT ; ENSO ; OSCILLATION ; CIRCULATION
WOS研究方向	Meteorology & Atmospheric Sciences
语种	英语
出版者	SPRINGER WIEN
WOS记录号	WOS:000581063100002
资助机构	National Natural Science Foundation of China ; National Key R&D Program Pilot Projects of China (CN)
内容类型	期刊论文
源URL	[http://ir.ieecas.cn/handle/361006/15431]
专题	地球环境研究所_古环境研究室
通讯作者	Liu, Jane; Zhao, Tianliang
作者单位	1.Fujian Normal Univ, Minist Educ, Key Lab Humid Subtrop Ecogeog Proc, Coll Geog Sci,Inst Geog, Fuzhou 350007, Fujian, Peoples R China 2.Chinese Acad Sci, Inst Earth Environm, State Key Lab Loess & Quaternary Geol SKLLQG, Xian 710061, Peoples R China 3.Chinese Acad Meteorol Sci, State Key Lab Severe Weather, Beijing 100081, Peoples R China 4.Chinese Acad Meteorol Sci, Key Lab Atmospher Chem China Meteorol Adm CMA, Inst Atmospher Composit, Beijing 100081, Peoples R China 5.Univ Toronto, Dept Geog & Planning, Toronto, ON, Canada 6.Nanjing Univ Informat Sci & Technol, Key Lab Aerosol Cloud Precipitat China Meteorol A, Collaborat Innovat Ctr Forecast & Evaluat Meteoro, Nanjing 210044, Jiangsu, Peoples R China
推荐引用方式 GB/T 7714	Cheng, Xugeng,Liu, Jane,Zhao, Tianliang,et al. A teleconnection between sea surface temperature in the central and eastern Pacific and wintertime haze variations in southern China[J]. THEORETICAL AND APPLIED CLIMATOLOGY,2020:11.
APA	Cheng, Xugeng.,Liu, Jane.,Zhao, Tianliang.,Gong, Sunling.,Xu, Xiangde.,...&Wang, Rong.(2020).A teleconnection between sea surface temperature in the central and eastern Pacific and wintertime haze variations in southern China.THEORETICAL AND APPLIED CLIMATOLOGY,11.
MLA	Cheng, Xugeng,et al."A teleconnection between sea surface temperature in the central and eastern Pacific and wintertime haze variations in southern China".THEORETICAL AND APPLIED CLIMATOLOGY (2020):11.