Effects of Indian Ocean Dipole initialization on the forecasting of La Nina 1 year in advance

doi:10.1007/s00382-023-06816-5

CORC > 海洋研究所 > 中国科学院海洋研究所 > 海洋环流与波动重点实验室

	Effects of Indian Ocean Dipole initialization on the forecasting of La Nina 1 year in advance
	Zhang, Shouwen 2; Wang, Jing 1,5,8; Jiang, Hua 3; Wang, Hui 3,7; Yuan, Dongliang 1,4,6,8
刊名	CLIMATE DYNAMICS
	2023-05-19
页码	17
关键词	La Nina forecast Indian Ocean Dipole Oceanic channel Atmospheric bridge
ISSN号	0930-7575
DOI	10.1007/s00382-023-06816-5
通讯作者	Wang, Hui(wangh@nmefc.cn) ; Yuan, Dongliang(dyuan@fio.org.cn)
英文摘要	The influence of strong Indian Ocean Dipole (IOD) events on the evolution of the following year's La Nina events is investigated using the National Marine Environmental Forecasting Center (NMEFC) operational seasonal forecasting system. The observation results show that when the strong IOD occurs, the tropical Pacific can be in different sea surface temperature states. As such prediction system can well reproduce the air-sea evolution of the 1998/1999 and 2020/2021 La Nina events, the ocean temperature initializations in December during above events were perturbed with the system to assess the role of the oceanic channel and atmospheric bridge across the maritime continent in the forecasting of the La Nina events 1 year later. In the case of the neutral state of the tropical Pacific at the peak of the 2019 positive IOD, pacemaker experiments have demonstrated that the Indian Ocean subsurface temperature initialization in December 2019 is critically important for the successful prediction of the 2020/2021 La Nina. Experiments of sea surface temperature initialization in December 2019, with only the Indo-Pacific atmospheric bridge at work, failed to predict the 2020/2021 La Nina 1 year in advance. The comparison underlined the dominant role of the oceanic channel dynamics in the evolution of the 2020/2021 La Nina. Forecasting experiments beginning from the 1997/98 El Nino with and without the IOD initializations suggest that the delayed feedback of the tropical Pacific coupled system is more important in the forecasting of the 1998/1999 La Nina, with the Indo-Pacific oceanic channel dynamics playing a secondary yet very important role. Our study has underscored the importance of the Indo-Pacific oceanic channel dynamics in ENSO prediction and suggested the effectiveness of IOD subsurface temperature initialization in La Nina predictions at the 1-year lead time.
资助项目	National Key R&D Program of China[2020YFA0608804] ; NSFC[42206029] ; NSFC[41720104008] ; NSFC[91858204] ; Strategic Priority Research Program of Chinese Academy of Sciences[XDB42000000] ; Southern Marine and Engineering Guangdong Laboratory (Zhuhai)[SML2020SP008]
WOS关键词	SEA-SURFACE TEMPERATURE ; EARTH SYSTEM MODEL ; CLIMATE VARIABILITY ; EL-NINO ; TROPICAL PACIFIC ; CHANNEL DYNAMICS ; ENSO ; PREDICTABILITY ; PREDICTION ; EVOLUTION
WOS研究方向	Meteorology & Atmospheric Sciences
语种	英语
出版者	SPRINGER
WOS记录号	WOS:000990977300002
内容类型	期刊论文
源URL	[http://ir.qdio.ac.cn/handle/337002/183232]
专题	海洋研究所_海洋环流与波动重点实验室
通讯作者	Wang, Hui; Yuan, Dongliang
作者单位	1.Laoshan Lab, Qingdao, Peoples R China 2.Southern Marine Sci & Engn Guangdong Lab Zhuhai, Zhuhai, Peoples R China 3.Natl Marine Environm Forecasting Ctr, Key Lab Res Marine Hazards Forecasting, Beijing, Peoples R China 4.Minist Nat Resources, Inst Oceanog 1, Key Lab Marine Sci & Numer Modeling, Shandong Key Lab Marine Sci & Numer Modeling, Qingdao, Peoples R China 5.Chinese Acad Sci, Inst Oceanol, Ctr Ocean Mega Sci, CAS Key Lab Ocean Circulat & Waves, Qingdao, Peoples R China 6.Shandong Key Lab Marine Sci & Numer Modeling, Qingdao, Peoples R China 7.Shandong Univ, Inst Marine Sci & Technol, Qingdao, Peoples R China 8.Univ Chinese Acad Sci, Beijing, Peoples R China
推荐引用方式 GB/T 7714	Zhang, Shouwen,Wang, Jing,Jiang, Hua,et al. Effects of Indian Ocean Dipole initialization on the forecasting of La Nina 1 year in advance[J]. CLIMATE DYNAMICS,2023:17.
APA	Zhang, Shouwen,Wang, Jing,Jiang, Hua,Wang, Hui,&Yuan, Dongliang.(2023).Effects of Indian Ocean Dipole initialization on the forecasting of La Nina 1 year in advance.CLIMATE DYNAMICS,17.
MLA	Zhang, Shouwen,et al."Effects of Indian Ocean Dipole initialization on the forecasting of La Nina 1 year in advance".CLIMATE DYNAMICS (2023):17.