气候变化领域集成服务门户(CCPortal): Intensification of Pacific tropical instability waves over the recent three decades

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DOI	10.1038/s41558-023-01915-x
	Intensification of Pacific tropical instability waves over the recent three decades
	Wang, Minyang; Xie, Shang-Ping; Sasaki, Hideharu; Nonaka, Masami; Du, Yan
发表日期	2024
ISSN	1758-678X
EISSN	1758-6798
英文摘要	Tropical instability waves (TIWs) arise from shear instabilities of equatorial Pacific Ocean currents and are important for the tropical climate and the El Nino-Southern Oscillation. Yet the long-term evolution of TIW activity under climate change remains unclear due to the difficulty in estimating equatorial current velocity. Here we use in situ, satellite altimeter and sea surface temperature observations along with a realistic eddy-resolving ocean simulation to show that TIW activity has intensified in the central equatorial Pacific at similar to 12 +/- 6% per decade over the recent three decades. The extended satellite data and the ocean model simulation show that the increased TIW activity is probably caused by an enhanced cross-equatorial asymmetric warming in the eastern tropical Pacific. The intensified TIWs lead to increased eddy dynamic heating effects of similar to 70% since the 1990s near the equator, with implications for predicting and projecting tropical Pacific climate changes. Tropical instability waves (TIWs) are an important component of the equatorial Pacific climate. Here the authors show that TIW activity has intensified in the central equatorial Pacific at similar to 12 +/- 6% per decade over the recent three decades.
英文关键词	DEEP-CYCLE TURBULENCE; GLOBAL OCEAN; MEAN STATE; VARIABILITY; SIMULATION; RESOLUTION; IMPACT; DYNAMICS
WOS研究方向	Environmental Sciences ; Environmental Studies ; Meteorology & Atmospheric Sciences
WOS记录号	WOS:001148713900002
来源期刊	Nature Climate Change
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/282378
作者单位	Chinese Academy of Sciences; South China Sea Institute of Oceanology, CAS; University of California System; University of California San Diego; Scripps Institution of Oceanography; Japan Agency for Marine-Earth Science & Technology (JAMSTEC); Chinese Academy of Sciences; University of Chinese Academy of Sciences, CAS
推荐引用方式 GB/T 7714	Wang, Minyang,Xie, Shang-Ping,Sasaki, Hideharu,et al. Intensification of Pacific tropical instability waves over the recent three decades[J],2024.
APA	Wang, Minyang,Xie, Shang-Ping,Sasaki, Hideharu,Nonaka, Masami,&Du, Yan.(2024).Intensification of Pacific tropical instability waves over the recent three decades.Nature Climate Change.
MLA	Wang, Minyang,et al."Intensification of Pacific tropical instability waves over the recent three decades".Nature Climate Change (2024).