The essential observations for reconstructing full-depth tidal currents

doi:10.3389/fmars.2022.959014

IOCAS-IR > 海洋环流与波动重点实验室

	The essential observations for reconstructing full-depth tidal currents
	Wang, Yuzhe 1,2,3; Zhang, Yibo 1,2,3; Wang, Jianfeng 3,4; Lv, Xianqing 1,2,3
	2022-08-18
发表期刊	FRONTIERS IN MARINE SCIENCE
卷号	9 页码:16
通讯作者	Wang, Jianfeng(jfwang2013@qdio.ac.cn) ; Lv, Xianqing(xqinglv@ouc.edu.cn)
摘要	Based on the modal decomposition and least square method, full-depth tidal currents and corresponding internal tidal modes can be obtained from limited observations. Through a series of experiments based on direct observations at the mooring MP1 and synthetic observations at the moorings MP2 and MP3 in the South China Sea, the essential observations for reconstructing full-depth tidal currents are determined. Both observations in the upper ocean (especially near the thermocline) and deep layer (below 500 m) are essential in the reconstruction. For the upper ocean, an up-looking acoustic Doppler current profiler near the thermocline is generally essential, which can also be replaced by at least 2-4 current meters (CMs). The number of CM depends on the complexity and range of buoyancy frequency variation. For the deep layer, more observations are needed as water depth increases. The observations with the CM interval/water depth ratios about 0.2 can effectively reconstruct full-depth tidal currents below 500 m based on one barotropic mode and first three baroclinic modes. Significantly, the CMs in the middle of the deep layer are more important than those at two ends of the deep layer, which may provide more cost-effective design at a small loss of accuracy. Furthermore, the CMs with the depth interval/water depth ratios less than 1/8 in the deep layer can effectively reconstruct full-depth tidal currents with high-mode baroclinic motions.
关键词	full-depth tidal current internal tide modal decomposition South China Sea mooring observation
DOI	10.3389/fmars.2022.959014
收录类别	SCI
语种	英语
资助项目	National Natural Science Foundation of China[42076011] ; National Natural Science Foundation of China[U1806214] ; National Natural Science Foundation of China[41706012] ; Natural Science Foundation of Shandong Province of China[ZR2020mD056] ; National Key Research and Development Project of China[2019YFC1408405] ; Open Fund Project of Key Laboratory of Marine Environmental Information Technology, Ministry of Natural Resources of the People's Republic of China
WOS研究方向	Environmental Sciences & Ecology ; Marine & Freshwater Biology
WOS类目	Environmental Sciences ; Marine & Freshwater Biology
WOS记录号	WOS:000849216200001
出版者	FRONTIERS MEDIA SA
引用统计
文献类型	期刊论文
条目标识符	http://ir.qdio.ac.cn/handle/337002/180859
专题	海洋环流与波动重点实验室
通讯作者	Wang, Jianfeng; Lv, Xianqing
作者单位	1.Ocean Univ China, Frontier Sci Ctr Deep Ocean Multispheres & Earth S, Qingdao, Peoples R China 2.Ocean Univ China, Phys Oceanog Lab, Qingdao, Peoples R China 3.Lab Reg Oceanog & Numer Modeling, Pilot Natl Lab Marine Sci & Technol, Qingdao, Peoples R China 4.Chinese Acad Sci, Inst Oceanol, CAS Key Lab Ocean Circulat & Waves, Qingdao, Peoples R China
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	Wang, Yuzhe,Zhang, Yibo,Wang, Jianfeng,et al. The essential observations for reconstructing full-depth tidal currents[J]. FRONTIERS IN MARINE SCIENCE,2022,9:16.
APA	Wang, Yuzhe,Zhang, Yibo,Wang, Jianfeng,&Lv, Xianqing.(2022).The essential observations for reconstructing full-depth tidal currents.FRONTIERS IN MARINE SCIENCE,9,16.
MLA	Wang, Yuzhe,et al."The essential observations for reconstructing full-depth tidal currents".FRONTIERS IN MARINE SCIENCE 9(2022):16.