caa a22 4500 605471118 CHVBK 20210128100331.0 cr unu---uuuuu 210128e20150801xx s 000 0 eng 10.1007/s00382-014-2207-4 doi (NATIONALLICENCE)springer-10.1007/s00382-014-2207-4 Role of intraseasonal oscillation in asymmetric impacts of El Niño and La Niña on the rainfall over southern China in boreal winter [Elektronische Daten] [Renhe Zhang, Tianran Li, Min Wen, Liangke Liu] The impacts of El Niño and La Niña on the rainfall over southern China in winter half year (November-April) are investigated diagnostically. It is found that positive rainfall anomalies with statistical significance appear over southern China in El Niño winter but no reversed significant rainfall anomalies in La Niña winter. The asymmetry of the rainfall anomalies are related with the asymmetry in anomalous circulation over western North Pacific (WNP) in lower troposphere, with a strong anomalous anticyclone in El Niño winter but a weak anomalous cyclone in La Niña winter. It is revealed that the asymmetric responses in anomalous circulation to El Nino and La Niña are affected by the intraseasonal oscillation (ISO). In El Niño winter the interannual variation is dominant and the ISO is weak, and the strong interannual variation leads to a strong response of the anomalous anticyclone over WNP in winter half year. However, in La Niña winter the ISO is dominant and the interannual variation is weak, and the weak interannual variation results in a weak response of the anomalous cyclone over WNP. Springer-Verlag Berlin Heidelberg, 2014 El Niño and La Niña nationallicence Rainfall over southern China nationallicence Intraseasonal oscillation nationallicence Winter half year nationallicence Zhang Renhe State Key Laboratory of Severe Weather (LaSW), Chinese Academy of Meteorological Sciences, 46 Zhong-Guan-Cun South Avenue, Haidian District, 100081, Beijing, China aut Li Tianran State Key Laboratory of Severe Weather (LaSW), Chinese Academy of Meteorological Sciences, 46 Zhong-Guan-Cun South Avenue, Haidian District, 100081, Beijing, China aut Wen Min State Key Laboratory of Severe Weather (LaSW), Chinese Academy of Meteorological Sciences, 46 Zhong-Guan-Cun South Avenue, Haidian District, 100081, Beijing, China aut Liu Liangke Nanjing University of Information Science and Technology, 210044, Nanjing, China aut Climate Dynamics Springer Berlin Heidelberg 45/3-4(2015-08-01), 559-567 0930-7575 45:3-4<559 2015 45 382 https://doi.org/10.1007/s00382-014-2207-4 text/html Onlinezugriff via DOI BK010053 XK010053 XK010000 Metadata rights reserved Springer special CC-BY-NC licence nationallicence 1 research-article jats NATIONALLICENCE NATIONALLICENCE NL-springer NATIONALLICENCE 856 40 https://doi.org/10.1007/s00382-014-2207-4 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Zhang Renhe State Key Laboratory of Severe Weather (LaSW), Chinese Academy of Meteorological Sciences, 46 Zhong-Guan-Cun South Avenue, Haidian District, 100081, Beijing, China aut NATIONALLICENCE 700 1- Li Tianran State Key Laboratory of Severe Weather (LaSW), Chinese Academy of Meteorological Sciences, 46 Zhong-Guan-Cun South Avenue, Haidian District, 100081, Beijing, China aut NATIONALLICENCE 700 1- Wen Min State Key Laboratory of Severe Weather (LaSW), Chinese Academy of Meteorological Sciences, 46 Zhong-Guan-Cun South Avenue, Haidian District, 100081, Beijing, China aut NATIONALLICENCE 700 1- Liu Liangke Nanjing University of Information Science and Technology, 210044, Nanjing, China aut NATIONALLICENCE 773 0- Climate Dynamics Springer Berlin Heidelberg 45/3-4(2015-08-01), 559-567 0930-7575 45:3-4<559 2015 45 382