气候变化领域集成服务门户(CCPortal): Inter-annual variability of spring precipitation over the Indo-China Peninsula and its asymmetric relationship with El Niño-Southern Oscillation

CCPortal

DOI	10.1007/s00382-020-05609-4
	Inter-annual variability of spring precipitation over the Indo-China Peninsula and its asymmetric relationship with El Niño-Southern Oscillation
	Li G.; Gao C.; Lu B.; Chen H.
发表日期	2021
ISSN	0930-7575
卷号	56 期号:2021-07-08
英文摘要	Previous studies suggested that the dry–wet surface state over the Indo-China Peninsula (ICP), closely associated with the local spring precipitation, is an important seasonal predictor for the East Asian summer monsoon and extreme climate. Hence, this work investigates the inter-annual variability of spring precipitation over the ICP and its relationship with El Niño-Southern Oscillation (ENSO) during 1958–2019. The results show that the spring precipitation anomalies over the ICP are highly linked to the ENSO-induced atmospheric circulation anomalies. In particular, there are large asymmetries in the precipitation anomalies for the spring following ENSO. During the decaying spring of the El Niño events, the precipitation decrease mainly occurs over the Western ICP associated with an anomalous low-level anticyclone over the western North Pacific. In contrast, during the decaying spring of the La Niña events, a stronger precipitation increase broadly extends into the Southeastern ICP. This is owing to a nonlinear effect of ENSO on the atmospheric circulation. Compared to El Niño, the abnormal center of La Niña extends too far westwards, inducing a westward movement of the anomalous atmospheric circulation, which results in a stronger effect on the spring ICP precipitation. Our findings emphasize the nonlinear responses of the spring ICP precipitation to ENSO. This has important implications for the seasonal climate prediction over the ICP, especially for the Southeastern ICP countries/regions. © 2021, The Author(s), under exclusive licence to Springer-Verlag GmbH, DE part of Springer Nature.
英文关键词	Asymmetry; Atmospheric circulation; El Niño-Southern Oscillation; Indo-China Peninsula; Inter-annual variability; Spring precipitation
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/183325
作者单位	College of Oceanography/Key Laboratory of Marine Hazards Forecasting, Ministry of Natural Resources/Key Laboratory of Ministry of Education for Coastal Disaster and Protection, Hohai University, Nanjing, China; Southern Marine Science and Engineering Laboratory (Zhuhai), Zhuhai, China; Laboratory for Climate Studies and CMA-NJU Joint Laboratory for Climate Prediction Studies, National Climate Center, China Meteorological Administration, Beijing, China; Key Laboratory of Meteorological Disaster, Ministry of Education (KLME) and Collaborative Innovation Center on Forecast and Evaluation of Meteorological Disasters (CIC-FEMD), Nanjing University of Information Science and Technology, Nanjing, China
推荐引用方式 GB/T 7714	Li G.,Gao C.,Lu B.,et al. Inter-annual variability of spring precipitation over the Indo-China Peninsula and its asymmetric relationship with El Niño-Southern Oscillation[J],2021,56(2021-07-08).
APA	Li G.,Gao C.,Lu B.,&Chen H..(2021).Inter-annual variability of spring precipitation over the Indo-China Peninsula and its asymmetric relationship with El Niño-Southern Oscillation.Climate Dynamics,56(2021-07-08).
MLA	Li G.,et al."Inter-annual variability of spring precipitation over the Indo-China Peninsula and its asymmetric relationship with El Niño-Southern Oscillation".Climate Dynamics 56.2021-07-08(2021).