Intraseasonal flow and its impact on the chlorophyll-a concentration in the Sunda Strait and its vicinity

doi:10.1016/j.dsr.2018.04.003

	Intraseasonal flow and its impact on the chlorophyll-a concentration in the Sunda Strait and its vicinity
	Xu, Tengfei 1,2; Li, Shujiang 1,2; Hamzah, Faisal 3,4; Setiawan, Agus 5; Susanto, R. Dwi 6,7; Cao, Guojiao 1,2; Wei, Zexun 1,2
刊名	DEEP-SEA RESEARCH PART I-OCEANOGRAPHIC RESEARCH PAPERS
	2018-06
卷号	136 页码:84-90
关键词	Sunda Strait Intraseasonal variability Kelvin waves Chlorophyll-a Remote sensing
ISSN号	0967-0637
DOI	10.1016/j.dsr.2018.04.003
英文摘要	Sunda Strait is the outflow strait of the South China Sea branch of the Pacific to Indian Ocean Throughflow. The annual mean volume transport through the Sunda Strait is around 0.25 Sv from the Java Sea to the eastern Indian Ocean, only 2.5% of the IndonesianThroughflow, and thus has been ignored by previous investigations. However, the Nutrient concentrations in the Sunda Strait and its vicinity are found highly related to the water transport through the Sunda Strait. Particularly, our observation shows significant intraseasonal variability (ISV) of currents at period around 25-45 days in the Sunda Strait. Both remote and local wind forcing contribute to the ISVs in the Sunda Strait. The intraseasonal oscillation of sea surface wind in the central Indian Ocean drives upwelling/downwelling equatorial Kelvin waves to propagate along the equator and subsequently along the Sumatra-Java coasts, resulting in negative/positive sea level anomalies in the south of the Sunda Strait. The local intraseasonal sea surface wind anomalies also tend to induce negative/positive sea level anomalies in the south of the Sunda Strait by offshore/onshore Ekman transport while there are upwelling/downwelling events. The ensuring sea level gradient associated with the sea level anomalies in the south of the Sunda Strait induces intraseasonal outflow (from Indian Ocean to Java Sea) and inflow (from Java Sea to Indian Ocean) through the strait. Analyses also show that the chlorophyll-a concentrations in the south of the Sunda Strait are lower/higher during the inflow/outflow period of the ISV events in March through May. The mechanism attributes to both the nutrient-rich water transported by the intraseasonal flow in the Sunda Strait and by the upwelling and Ekman transport driven by the local sea surface wind anomalies.
资助项目	Office of Naval Research, USA[N00014-08-01-0618]
WOS关键词	EASTERN INDIAN-OCEAN ; INDONESIAN SEAS ; KELVIN WAVE ; VARIABILITY ; THROUGHFLOW ; PHYTOPLANKTON ; SALINITY ; LOMBOK
WOS研究方向	Oceanography
语种	英语
出版者	PERGAMON-ELSEVIER SCIENCE LTD
WOS记录号	WOS:000436917000006
内容类型	期刊论文
源URL	[http://ir.fio.com.cn:8080/handle/2SI8HI0U/26055]
专题	自然资源部第一海洋研究所
通讯作者	Wei, Zexun
作者单位	1.State Ocean Adm, Inst Oceanog 1, Qingdao 266061, Peoples R China 2.Qingdao Natl Lab Marine Sci & Technol, Lab Reg Oceanog & Numer Modeling, Qingdao 266237, Peoples R China 3.Xiamen Univ, State Key Lab Marine Environm Sci, Xiamen 361005, Peoples R China 4.Minist Marine Affairs & Fisheries, Inst Marine Res & Observ, Bali 82251, Indonesia 5.Minist Marine Affairs & Fisheries, Agcy Marine & Fisheries Res & Dev, Res & Dev Ctr Marine & Coastal Resources, Jakarta 14430, Indonesia 6.Univ Maryland, Dept Atmospher & Ocean Sci, College Pk, MD 20742 USA 7.Bandung Inst Technol, Fac Earth Sci & Technol, Bandung 40116, Indonesia
推荐引用方式 GB/T 7714	Xu, Tengfei,Li, Shujiang,Hamzah, Faisal,et al. Intraseasonal flow and its impact on the chlorophyll-a concentration in the Sunda Strait and its vicinity[J]. DEEP-SEA RESEARCH PART I-OCEANOGRAPHIC RESEARCH PAPERS,2018,136:84-90.
APA	Xu, Tengfei.,Li, Shujiang.,Hamzah, Faisal.,Setiawan, Agus.,Susanto, R. Dwi.,...&Wei, Zexun.(2018).Intraseasonal flow and its impact on the chlorophyll-a concentration in the Sunda Strait and its vicinity.DEEP-SEA RESEARCH PART I-OCEANOGRAPHIC RESEARCH PAPERS,136,84-90.
MLA	Xu, Tengfei,et al."Intraseasonal flow and its impact on the chlorophyll-a concentration in the Sunda Strait and its vicinity".DEEP-SEA RESEARCH PART I-OCEANOGRAPHIC RESEARCH PAPERS 136(2018):84-90.