Impacts of Indonesian Throughflow on seasonal circulation in the equatorial Indian Ocean

doi:10.1007/s00343-017-6196-0

CORC > 海洋研究所 > 中国科学院海洋研究所 > 海洋环流与波动重点实验室

	Impacts of Indonesian Throughflow on seasonal circulation in the equatorial Indian Ocean
	Wang Jing1,2 ; Yuan Dongliang1,2 ; Zhao Xia1,2
刊名	CHINESE JOURNAL OF OCEANOLOGY AND LIMNOLOGY
	2017-11-01
卷号	35 期号:6 页码:1261-1274
关键词	Indonesian Throughflow (Itf) Blockage Seasonal Circulation Wave Decomposition Semiannual Oscillation Indian Ocean
DOI	10.1007/s00343-017-6196-0
文献子类	Article
英文摘要	Impacts of the Indonesian Throughflow (ITF) on seasonal circulation in the equatorial eastern Indian Ocean are investigated using the ocean-only model LICOM by opening and closing ITF passages. LICOM had daily forcing from NCEP reanalysis data during 2000-2011. It can reproduce vertical profiles of mean density and buoyancy frequency of World Ocean Atlas 2013 data. The model also simulates well annual oscillation in the central Indian Ocean and semiannual oscillation in the eastern Indian Ocean of sea level anomalies (SLA) using satellite altimeter data, as well as the semiannual oscillation of surface zonal equatorial currents of Ocean Surface Current Analyses Real Time current data in the equatorial Indian Ocean. The wave decomposition method is used to analyze the propagation and reflection of equatorial long waves based on LICOM output. Wave analysis suggests that ITF blockage mainly influences waves generated from the Indian Ocean but not the Pacific Ocean, and eastern boundary reflections play an important role in semiannual oscillations of SLA and zonal current differences in the equatorial Indian Ocean associated with ITF. Reconstructed ITF-caused SLA using wave decomposition coefficient differences between closed and open ITF-passage experiments suggest both Kelvin and Rossby waves from the first baroclinic mode have comparable contributions to the semiannual oscillations of SLA difference. However, reconstructed ITF-caused surface zonal currents at the equator suggest that the first meridional-mode Rossby wave has much greater contribution than the first baroclinic mode Kelvin wave. Both reconstructed sea level and zonal currents demonstrate that the first baroclinic mode has a greater contribution than other baroclinic modes.
语种	英语
WOS记录号	WOS:000415810900001
内容类型	期刊论文
版本	出版稿
源URL	[http://ir.qdio.ac.cn/handle/337002/143276]
专题	海洋研究所_海洋环流与波动重点实验室海洋研究所_海洋地质与环境重点实验室
作者单位	1.Chinese Acad Sci, Inst Oceanol, Key Lab Ocean Circulat & Waves, Qingdao 266071, Peoples R China 2.Qingdao Natl Lab Marine Sci & Technol, Lab Ocean & Climate Dynam, Qingdao 266237, Peoples R China
推荐引用方式 GB/T 7714	Wang Jing,Yuan Dongliang,Zhao Xia. Impacts of Indonesian Throughflow on seasonal circulation in the equatorial Indian Ocean[J]. CHINESE JOURNAL OF OCEANOLOGY AND LIMNOLOGY,2017,35(6):1261-1274.
APA	Wang Jing,Yuan Dongliang,&Zhao Xia.(2017).Impacts of Indonesian Throughflow on seasonal circulation in the equatorial Indian Ocean.CHINESE JOURNAL OF OCEANOLOGY AND LIMNOLOGY,35(6),1261-1274.
MLA	Wang Jing,et al."Impacts of Indonesian Throughflow on seasonal circulation in the equatorial Indian Ocean".CHINESE JOURNAL OF OCEANOLOGY AND LIMNOLOGY 35.6(2017):1261-1274.