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DOI	10.1007/s00382-019-05043-1
	How does El Niño-Southern Oscillation affect winter fog frequency over eastern China?
	Hu S.; Zhang W.; Turner A.G.; Sun J.
发表日期	2020
ISSN	0930-7575
起始页码	1043
结束页码	1056
卷号	54 期号:2020-01-02
英文摘要	The winter fog frequency over eastern China displays remarkable interannual variability, which has a linear relationship with El Niño-Southern Oscillation (ENSO). Eastern China usually experiences more (less) frequent fog during El Niño (La Niña) winters. During El Niño winters, an anomalous anticyclone tends to appear over the western North Pacific (WNP), which can weaken the climatological winter northerly winds and enhance water vapor supply from oceans, conducive to the formation of foggy weather. Roughly opposite anomalies of fog frequency are displayed during La Niña winters. However, this linear relationship is mainly contributed by the La Niña and partial El Niño events, since the El Niño events exhibit diversity in impacts on the winter fog frequency due to their different types. Increased winter fog frequency can be significantly detected during eastern-Pacific (EP) El Niño, while this signal is not observed during central-Pacific (CP) El Niño. It is found that the winter fog frequency during the CP El Niño seems to be dependent on its zonal locations, associated with different WNP atmospheric circulation and local difference between air temperature and dew point temperature (T − Td) anomalies. The further eastward CP El Niño largely coincides with more frequent fog weather similar to the EP El Niño, while the further westward CP El Niño is usually accompanied with less frequent fog weather. This relationship has important implications for seasonal prediction of winter fog frequency and places a high requirement on consideration of zonal location of the CP El Niño. © 2019, Springer-Verlag GmbH Germany, part of Springer Nature.
英文关键词	CP El Niño; ENSO; EP El Niño; Winter fog frequency
语种	英语
scopus关键词	annual variation; dew point; El Nino; El Nino-Southern Oscillation; fog; La Nina; water vapor; winter; zonal wind; China; Pacific Ocean; Pacific Ocean (North)
来源期刊	Climate Dynamics
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/145752
作者单位	CIC-FEMD/ILCEC, Key Laboratory of Meteorological Disaster of Ministry of Education (KLME), College of Atmospheric Sciences, Nanjing University of Information Science and Technology, Nanjing, 210044, China; NCAS-Climate, University of Reading, Reading, RG6 6BB, United Kingdom; Department of Meteorology, University of Reading, Reading, RG6 6BB, United Kingdom; Key Laboratory of Urban Ecological Environmental Simulation and Protection of Ministry of Environmental Protection, South China Institute of Environmental Sciences, The Ministry of Ecology and Environment of PRC, Guangzhou, 510655, China
推荐引用方式 GB/T 7714	Hu S.,Zhang W.,Turner A.G.,et al. How does El Niño-Southern Oscillation affect winter fog frequency over eastern China?[J],2020,54(2020-01-02).
APA	Hu S.,Zhang W.,Turner A.G.,&Sun J..(2020).How does El Niño-Southern Oscillation affect winter fog frequency over eastern China?.Climate Dynamics,54(2020-01-02).
MLA	Hu S.,et al."How does El Niño-Southern Oscillation affect winter fog frequency over eastern China?".Climate Dynamics 54.2020-01-02(2020).