Variation in joint mode of the tropical Indian-Pacific Ocean thermodynamic anomaly

IMR OpenIR

	Variation in joint mode of the tropical Indian-Pacific Ocean thermodynamic anomaly
其他题名	Variation in joint mode of the tropical Indian-Pacific Ocean thermodynamic anomaly
	Zheng Dongmei 1; Zhang Qilong 1
	2010
发表期刊	CHINESE JOURNAL OF OCEANOLOGY AND LIMNOLOGY
ISSN	0254-4059
卷号	28 期号:3 页码:619-625
摘要	Previous research has defined the index of the Indian-Pacific thermodynamic anomaly joint mode (IPTAJM) and suggested that the winter IPTAJM has an important impact on summer rainfall over China. However, the possible causes for the interannual and decadal variability of the IPTAJM are still unclear. Therefore, this work investigates zonal displacements of both the western Pacific warm pool (WPWP) and the eastern Indian Ocean warm pool (EIOWP). The relationships between the WPWP and the EIOWP and the IPTAJM are each examined, and then the impacts of the zonal wind anomalies over the equatorial Pacific and Indian Oceans on the IPTAJM are studied. The WPWP eastern edge anomaly displays significant interannual and decadal variability and experienced a regime shift in about 1976 and 1998, whereas the EIOWP western edge exhibits only distinct interannual variability. The decadal variability of the IPTAJM may be mainly caused by both the zonal migration of the WPWP and the 850 hPa zonal wind anomaly over the central equatorial Pacific. On the other hand, the zonal migrations of both the WPWP and the EIOWP and the zonal wind anomalies over the central equatorial Pacific and the eastern equatorial Indian Ocean may be all responsible for the interannual variability of the IPTAJM.
其他摘要	Previous research has defined the index of the Indian-Pacific thermodynamic anomaly joint mode (IPTAJM) and suggested that the winter IPTAJM has an important impact on summer rainfall over China. However, the possible causes for the interannual and decadal variability of the IPTAJM are still unclear. Therefore, this work investigates zonal displacements of both the western Pacific warm pool (WPWP) and the eastern Indian Ocean warm pool (EIOWP). The relationships between the WPWP and the EIOWP and the IPTAJM are each examined, and then the impacts of the zonal wind anomalies over the equatorial Pacific and Indian Oceans on the IPTAJM are studied. The WPWP eastern edge anomaly displays significant interannual and decadal variability and experienced a regime shift in about 1976 and 1998, whereas the EIOWP western edge exhibits only distinct interannual variability. The decadal variability of the IPTAJM may be mainly caused by both the zonal migration of the WPWP and the 850 hPa zonal wind anomaly over the central equatorial Pacific. On the other hand, the zonal migrations of both the WPWP and the EIOWP and the zonal wind anomalies over the central equatorial Pacific and the eastern equatorial Indian Ocean may be all responsible for the interannual variability of the IPTAJM.
关键词	NINO-SOUTHERN-OSCILLATION WARM-POOL EL-NINO WESTERN PACIFIC DISPLACEMENTS CLIMATE EVENTS tropical Indian Ocean tropical Pacific thermodynamic anomaly joint mode ENSO dipole
收录类别	CSCD
语种	英语
资助项目	[National Basic Research Development Program of China (973 Program)] ; [Chinese Adademy of Sciences] ; [Marine Public Walfare Industry]
CSCD记录号	CSCD:3891797
引用统计	被引频次：1[CSCD] [CSCD记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/157868
专题	中国科学院金属研究所
作者单位	1.中国科学院 2.中国科学院大学 3.中国科学院金属研究所
推荐引用方式 GB/T 7714	Zheng Dongmei,Zhang Qilong. Variation in joint mode of the tropical Indian-Pacific Ocean thermodynamic anomaly[J]. CHINESE JOURNAL OF OCEANOLOGY AND LIMNOLOGY,2010,28(3):619-625.
APA	Zheng Dongmei,&Zhang Qilong.(2010).Variation in joint mode of the tropical Indian-Pacific Ocean thermodynamic anomaly.CHINESE JOURNAL OF OCEANOLOGY AND LIMNOLOGY,28(3),619-625.
MLA	Zheng Dongmei,et al."Variation in joint mode of the tropical Indian-Pacific Ocean thermodynamic anomaly".CHINESE JOURNAL OF OCEANOLOGY AND LIMNOLOGY 28.3(2010):619-625.