期刊
APPLIED OCEAN RESEARCH
卷 95, 期 -, 页码 -出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.apor.2019.101893
关键词
Mesoscale eddy; Glider network; Optimal configuration; Northern South China Sea
资金
- National Key R&D Program of China [2016YFC0301100, 2017YFC0305902]
- National Natural Science Foundation of China [51721003, 51722508]
- Marine S&T Fund of Shandong Province for Pilot National Laboratory for Marine Science and Technology (Qingdao) [2018SDKJ0205]
- Wenhai Program [ZR2016WHO3]
- Aoshan Talent Cultivation Program of QNLM [2017ASTCP-OS05, 2017ASTCP-0E01]
- Natural Science Foundation of Tianjin City [18JCQNJC05100]
- China Scholarship Council [201706250178]
- joint project of Qingdao marine engineering equipment and technology of think-tank
- [QNLM201705]
Mesoscale eddies, as a considerable transporter of ocean heat, dissolved oxygen and other biochemical tracers, have an important influence on the distribution of marine resources and global climate change. The observation of their three-dimensional (3D) structure will facilitate the understanding of eddy dynamics. Underwater gliders have been applied in observing the mesoscale eddies in recent years. The main objective of this paper is to determine the optimal configuration of an underwater glider network for reconstructing the 3D structure of an anticyclonic eddy in the northern South China Sea. Based on a simple parameterized model for the temperature anomaly field of the eddy, a numerical experiment was performed to test three glider network topologies (two perpendicular parallel patterns and one crossing pattern). A comprehensive metric combining three metrics was proposed to evaluate the reconstruction performance. The relationship between the metric and configuration of the glider network including the number and allocation was revealed. Comparing the reconstruction performance of different configurations, the optimal number and topology of gliders in the network were determined. The numerical results demonstrate the efficiency of the glider network with an appropriate configuration in observing the 3D structure of a mesoscale eddy. From August 4 to 29, 2017, a field experiment was conducted by Tianjin University in northern South China Sea to verify the simulation results. The results of this research can be applied to the design of glider networks for observing the mesoscale eddies' 3D structure in situ.
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