气候变化领域集成服务门户(CCPortal): On the Interdecadal Variation of the Warm Water Volume in the Tropical Pacific Around 1999/2000

CCPortal

DOI	10.1029/2020JD033306
	On the Interdecadal Variation of the Warm Water Volume in the Tropical Pacific Around 1999/2000
	Li X.; Hu Z.-Z.; Huang B.; Jin F.-F.
发表日期	2020
ISSN	2169897X
卷号	125 期号:18
英文摘要	A profound change in the variations of warm water volume (WWV) of the tropical Pacific occurred around 1999/2000, coincided with the interdecadal shift of the El Niño–Southern Oscillation (ENSO) properties to a higher frequency and smaller amplitude regime. The persistence of WWV is decreased for all calendar months since 2000, associated with a decrease in its variance and an increase in its frequency. Moreover, the WWV-sea surface temperature relationship associated with the ENSO cycle is weakened during 2000–2019, implying that the recharge/discharge process is less efficient in driving the phase transition of an ENSO cycle and ENSO became less periodical compared with that during 1979–1999. Corresponding to the weaker precursory connection of WWV to ENSO, the geographical origin of precedent thermocline anomalies has shown a northwestward migration since 2000. This is consistent with the suppression of the equatorial air-sea feedback and the systematical northwestward shift of the atmosphere-ocean coupling center in the tropical Pacific. Changed annual cycle and enhanced zonal contrast of sea surface temperature in the equatorial Pacific may be connected with the interdecadal variations of the ENSO and WWV features. ©2020. American Geophysical Union. All Rights Reserved.
英文关键词	a northwestward shift of ocean-atmosphere coupling; amplitude and persistence decrease; frequency increase; interdecadal variation around 1999/2000; warm water volume in the tropical Pacific
语种	英语
来源期刊	Journal of Geophysical Research: Atmospheres
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/185772
作者单位	Key Laboratory of Geoscience Big Data and Deep Resource of Zhejiang Province, School of Earth Sciences, Zhejiang University, Hangzhou, Zhejiang, China; Southern Marine Science and Engineering Guangdong Laboratory (Zhuhai), Zhuhai, Guangdong, China; Climate Prediction Center, NCEP/NWS/NOAA, College Park, MD, United States; Department of Atmospheric, Oceanic, and Earth Sciences, College of Science, George Mason University, Fairfax, VA, United States; Department of Atmospheric Sciences, University of Hawaii at Manoa, Honolulu, HI, United States
推荐引用方式 GB/T 7714	Li X.,Hu Z.-Z.,Huang B.,et al. On the Interdecadal Variation of the Warm Water Volume in the Tropical Pacific Around 1999/2000[J],2020,125(18).
APA	Li X.,Hu Z.-Z.,Huang B.,&Jin F.-F..(2020).On the Interdecadal Variation of the Warm Water Volume in the Tropical Pacific Around 1999/2000.Journal of Geophysical Research: Atmospheres,125(18).
MLA	Li X.,et al."On the Interdecadal Variation of the Warm Water Volume in the Tropical Pacific Around 1999/2000".Journal of Geophysical Research: Atmospheres 125.18(2020).