An Updated Estimate of the Indonesian Throughflow Geostrophic Transport: Interannual Variability and Salinity Effect

doi:10.1029/2023GL103748

IOCAS-IR > 海洋环流与波动重点实验室

	An Updated Estimate of the Indonesian Throughflow Geostrophic Transport: Interannual Variability and Salinity Effect
	Guo, Yaru 1; Li, Yuanlong 1,2; Cheng, Lijing 3; Chen, Gengxin 4; Liu, Qinyan 4; Tian, Tian 3,5; Hu, Shijian 1,2; Wang, Jing 1,2; Wang, Fan1,2
	2023-07-16
发表期刊	GEOPHYSICAL RESEARCH LETTERS
ISSN	0094-8276
卷号	50 期号:13 页码:10
通讯作者	Li, Yuanlong(liyuanlong@qdio.ac.cn)
摘要	While the pivotal role of the Indonesian Throughflow (ITF) in the global ocean circulation and climate has been widely recognized, accurate estimation of its volume transport based on observational data remains challenging. This work provides an updated estimate of the monthly ITF geostrophic transport (ITFG) in the upper 700 m at the IX1 section between Indonesia and Australia. The ITFG estimate is better constrained by improved data correction and new salinity data products. The mean ITFG of 1993-2018 is 8.2 & PLUSMN; 0.2 Sv, in which contributions of the temperature and salinity components (ITFT and ITFS) are 5.5 & PLUSMN; 0.2 and 2.8 & PLUSMN; 0.1 Sv, respectively. The interannual variability (& SIM;4.4 Sv in standard deviation) is dominated by ITFT, as the result of wind-driven thermocline dynamics, and slightly attenuated in amplitude by ITFS. The strengthening trend of 1.33 Sv decade(-1) during 1993-2018 primarily arises from ITFS and secondarily from ITFT.
关键词	Indonesian Throughflow geostrophic transport XBT-IX1 section salinity component uncertainty estimation temperature component
DOI	10.1029/2023GL103748
收录类别	SCI
语种	英语
资助项目	National Key Ramp;D Program of China[2019YFA0606702] ; Strategic Priority Research Program of CAS[XDB42000000] ; Laoshan Laboratory[LSKJ202202601] ; Interdisciplinary Innovation Team of Chinese Academy of Sciences[JCTD-2020-12] ; China Postdoctoral Science Foundation[2022M723182] ; IOCAS ; Oceanographic Data Center
WOS研究方向	Geology
WOS类目	Geosciences, Multidisciplinary
WOS记录号	WOS:001022459700001
出版者	AMER GEOPHYSICAL UNION
WOS关键词	SOUTHEAST INDIAN-OCEAN ; SEA-LEVEL ; LEEUWIN CURRENT ; HEAT-CONTENT ; PACIFIC ; CIRCULATION ; EXCHANGE ; DIPOLE ; MECHANISMS ; PATHWAYS
引用统计	被引频次：2[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.qdio.ac.cn/handle/337002/182446
专题	海洋环流与波动重点实验室
通讯作者	Li, Yuanlong
作者单位	1.Chinese Acad Sci, Inst Oceanol, CAS Key Lab Ocean Circulat & Waves, Qingdao, Peoples R China 2.Laoshan Lab, Qingdao, Peoples R China 3.Chinese Acad Sci, Inst Atmospher Phys, Beijing, Peoples R China 4.Chinese Acad Sci, South China Sea Inst Oceanol, State Key Lab Trop Oceanog, Guangzhou, Peoples R China 5.Natl Univ Def Technol, Coll Meteorol & Oceanog, Changsha, Peoples R China
第一作者单位	中国科学院海洋研究所
通讯作者单位	中国科学院海洋研究所
推荐引用方式 GB/T 7714	Guo, Yaru,Li, Yuanlong,Cheng, Lijing,et al. An Updated Estimate of the Indonesian Throughflow Geostrophic Transport: Interannual Variability and Salinity Effect[J]. GEOPHYSICAL RESEARCH LETTERS,2023,50(13):10.
APA	Guo, Yaru.,Li, Yuanlong.,Cheng, Lijing.,Chen, Gengxin.,Liu, Qinyan.,...&Wang, Fan.(2023).An Updated Estimate of the Indonesian Throughflow Geostrophic Transport: Interannual Variability and Salinity Effect.GEOPHYSICAL RESEARCH LETTERS,50(13),10.
MLA	Guo, Yaru,et al."An Updated Estimate of the Indonesian Throughflow Geostrophic Transport: Interannual Variability and Salinity Effect".GEOPHYSICAL RESEARCH LETTERS 50.13(2023):10.