气候变化领域集成服务门户(CCPortal): Distinct Growth Rates of the Two ENSO Types

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DOI	10.1029/2020GL088179
	Distinct Growth Rates of the Two ENSO Types
	Ren H.-L.; Wang R.
发表日期	2020
ISSN	0094-8276
卷号	47 期号:16
英文摘要	El Niño-Southern Oscillation (ENSO) events can be grouped into two types based on their sea surface temperature anomaly spatial patterns, that is, eastern Pacific (EP) and central Pacific (CP) types. In this study, we propose a new method to empirically diagnose linear growth rates of the EP and CP ENSO types due to a limitation of applying the traditional Bjerknes stability index method simply to these two types. We spatially project the peak-time symmetric component of the mixed-layer oceanic heat budget terms onto the ENSO-related sea surface temperature anomaly patterns to estimate the ENSO grow rate. After validating the method by comparing it with the Bjerknes stability index, we show that the growth rate is positive for the CP ENSO type and weakly negative for the EP ENSO type, contributed by different feedback terms. The Coupled Model Intercomparison Project Phase 5-based multimodel ensemble mean shows similar characteristics as the reanalysis for the EP ENSO type rather than the CP ENSO type. ©2020. American Geophysical Union. All Rights Reserved.
英文关键词	Atmospheric pressure; Atmospheric temperature; Climatology; Oceanography; Submarine geophysics; Surface properties; Surface waters; Coupled Model Intercomparison Project; Linear growth rate; Multi-model ensemble; Sea surface temperature anomalies; Southern oscillation; Spatial patterns; Stability indices; Symmetric components; Growth rate; CMIP; El Nino-Southern Oscillation; heat budget; mixed layer; sea surface temperature; spatial analysis; temperature anomaly; Pacific Ocean; Pacific Ocean (Central); Pacific Ocean (East)
语种	英语
来源期刊	Geophysical Research Letters
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/169858
作者单位	State Key Laboratory of Severe Weather, Chinese Academy of Meteorological Sciences, Beijing, China; College of Earth and Planetary Sciences, University of Chinese Academy of Sciences, Beijing, China; Laboratory for Climate Studies and& CMA-NJU Joint Laboratory for Climate Prediction Studies, National Climate Center, China Meteorological Administration, Beijing, China; Department of Atmospheric Science, School of Environmental Studies, China University of Geoscience, Wuhan, China
推荐引用方式 GB/T 7714	Ren H.-L.,Wang R.. Distinct Growth Rates of the Two ENSO Types[J],2020,47(16).
APA	Ren H.-L.,&Wang R..(2020).Distinct Growth Rates of the Two ENSO Types.Geophysical Research Letters,47(16).
MLA	Ren H.-L.,et al."Distinct Growth Rates of the Two ENSO Types".Geophysical Research Letters 47.16(2020).