气候变化领域集成服务门户(CCPortal): Influences of the Interdecadal Pacific Oscillation on the Locally Amplified Ningaloo Niño

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DOI	10.1029/2020GL088712
	Influences of the Interdecadal Pacific Oscillation on the Locally Amplified Ningaloo Niño
	Tanuma N.; Tozuka T.
发表日期	2020
ISSN	0094-8276
卷号	47 期号:15
英文摘要	Using observation/reanalysis data, influences of the Interdecadal Pacific Oscillation (IPO) on the frequency of the locally amplified Ningaloo Niño (i.e., events with local air-sea interactions playing an important role) and their mechanisms are investigated in this study. It is found that the ratio of the locally amplified Ningaloo Niño increases during the negative phase of the IPO. This is due to positive interdecadal sea surface temperature anomalies to the northwest of Australia that promote deep atmospheric convection and anomalous cyclone off the west coast of Australia through a Matsuno-Gill response. Based on a mixed layer heat budget analysis using outputs from a regional ocean model, it is shown that an enhanced warming of anomalously thin mixed layer by the shortwave radiation contributes dominantly to the interdecadal sea surface temperature anomalies. The shallow mixed layer depth is suggested to be generated by anomalously weak winds associated with the negative IPO. © 2020. American Geophysical Union. All Rights Reserved.
英文关键词	Atmospheric temperature; Natural convection; Storms; Submarine geophysics; Surface properties; Surface waters; Air sea interactions; Atmospheric convection; Heat budget analysis; Inter-decadal pacific oscillations; Mixed layer depths; Regional ocean modeling; Sea surface temperature anomalies; Short-wave radiation; Oceanography; air-sea interaction; atmospheric convection; cyclone; decadal variation; heat budget; mixed layer; sea surface temperature; shortwave radiation; temperature anomaly; Australia
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/169994
作者单位	Department of Earth and Planetary Science, Graduate School of Science, The University of Tokyo, Tokyo, Japan
推荐引用方式 GB/T 7714	Tanuma N.,Tozuka T.. Influences of the Interdecadal Pacific Oscillation on the Locally Amplified Ningaloo Niño[J],2020,47(15).
APA	Tanuma N.,&Tozuka T..(2020).Influences of the Interdecadal Pacific Oscillation on the Locally Amplified Ningaloo Niño.Geophysical Research Letters,47(15).
MLA	Tanuma N.,et al."Influences of the Interdecadal Pacific Oscillation on the Locally Amplified Ningaloo Niño".Geophysical Research Letters 47.15(2020).