气候变化领域集成服务门户(CCPortal): Generation of Quasi-Biweekly Yanai Waves in the Equatorial Indian Ocean

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DOI	10.1029/2020GL088915
	Generation of Quasi-Biweekly Yanai Waves in the Equatorial Indian Ocean
	Arzeno I.B.; Giddings S.N.; Pawlak G.; Pinkel R.
发表日期	2020
ISSN	0094-8276
卷号	47 期号:16
英文摘要	The spatial and temporal structure of quasi-biweekly Yanai waves in the Indian Ocean and their relationship to wind stress are uniquely described using satellite observations of sea level anomalies and wind velocities, previously approximated only using theory, numerical models, and discrete mooring observations. Yanai waves represent a significant contribution to equatorial antisymmetric sea level anomaly variability in the 10–20 day band. Robust climatologies produced using 17 years of data (spanning 45–95°E and 10°S to 10°N) reveal a clear spatiotemporal pattern and are consistent with Yanai wave generation in the western equatorial Indian Ocean during monsoon seasons. Spectral and correlation analyses imply that Yanai waves are linearly forced by wind stress patterns with similar wavelengths. A new method of assembling data composites shows the first full structure of a vertical mode-2 Yanai wave moving across the equatorial Indian Ocean under westward propagating wind vortices. ©2020. American Geophysical Union. All Rights Reserved.
英文关键词	Wind stress; Correlation analysis; Equatorial Indian Ocean; Satellite observations; Sea level anomaly; Spatiotemporal patterns; Stress patterns; Temporal structures; Wave generation; Sea level; monsoon; mooring system; quasi-biennial oscillation; satellite altimetry; sea level change; spectral analysis; wave generation; wave propagation; wind stress; Chugoku; Honshu; Indian Ocean; Indian Ocean (Equatorial); Japan; Yamaguchi [Chugoku]; Yanai
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/169882
作者单位	Scripps Institution of Oceanography, University of California, San Diego, San Diego, CA, United States; Department of Mechanical and Aerospace Engineering, University of California, San Diego, San Diego, CA, United States
推荐引用方式 GB/T 7714	Arzeno I.B.,Giddings S.N.,Pawlak G.,et al. Generation of Quasi-Biweekly Yanai Waves in the Equatorial Indian Ocean[J],2020,47(16).
APA	Arzeno I.B.,Giddings S.N.,Pawlak G.,&Pinkel R..(2020).Generation of Quasi-Biweekly Yanai Waves in the Equatorial Indian Ocean.Geophysical Research Letters,47(16).
MLA	Arzeno I.B.,et al."Generation of Quasi-Biweekly Yanai Waves in the Equatorial Indian Ocean".Geophysical Research Letters 47.16(2020).