IOCAS-IR  > 海洋环流与波动重点实验室
Energy Sources Generation and Energy Cascades along the Kuroshio East of Taiwan Island and the East China Sea
Wang, Ru1,2,3; Hou, Yijun1,2,3,4; Liu, Ze1,3,4,5
2021-07-01
Source PublicationJOURNAL OF MARINE SCIENCE AND ENGINEERING
Volume9Issue:7Pages:24
Corresponding AuthorHou, Yijun(yjhou@qdio.ac.cn)
AbstractThere are multi-spatial-scale ocean dynamic processes in the western boundary current region, so the budget of energy source and sink in the Kuroshio Current area can describe the oceanic energy cycle and transformation more accurately. The slope of the one-dimensional spectral energy density varies between -5/3 and -3 in the wavenumber range of 0.02-0.1 cpkm, indicating an inverse energy cascade in the Kuroshio of Taiwan Island and the East China Sea. According to the steady-state energy evolution, an energy source must be present. The locations of energy sources were identified using the spectral energy transfer calculated by 24 years of Ocean General Circulation Model for the Earth Simulator (OFES) data. At the sea surface, the kinetic energy (KE) sources are mainly within 23.2 degrees-25.6 degrees Nand 28 degrees-29 degrees N at less than 0.02 cpkm and within 23.2 degrees-25 degrees N and 26 degrees-30 degrees N at 0.02-0.1 cpkm. The available potential energy (APE) sources are mainly within 22 degrees-28 degrees N and 28.6 degrees-30 degrees N at less than 0.02 cpkm and within 22.6 degrees-24.6 degrees N, 25.4 degrees-28 degrees N and 29.2 degrees-30 degrees N at 0.02-0.1 cpkm. Beneath the sea surface, the energy sources are mainly above 400 m depth. Wind stress and density differences are primarily responsible for the KE and APE sources, respectively. Once an energy source is formed, to maintain a steady state, energy cascades (mainly inverse cascades by calculating spectral energy flux) will be engendered. By calculating the energy flux at 600 m depth, KE changes from inflow (sink) to outflow (source), and the conversion depth of source and sink is 380 m. However, outflow of the APE behaves as the source.
Keywordenergy source inverse energy cascade wind stress density differences energy flux
DOI10.3390/jmse9070692
Indexed BySCI
Language英语
Funding ProjectNational Natural Science Foundation of China[41630967] ; National Natural Science Foundation of China[41776020]
WOS Research AreaEngineering ; Oceanography
WOS SubjectEngineering, Marine ; Engineering, Ocean ; Oceanography
WOS IDWOS:000676308900001
PublisherMDPI
Citation statistics
Document Type期刊论文
Identifierhttp://ir.qdio.ac.cn/handle/337002/175783
Collection海洋环流与波动重点实验室
Corresponding AuthorHou, Yijun
Affiliation1.Chinese Acad Sci, Inst Oceanol, Key Lab Ocean Circulat & Waves, Qingdao 266071, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
3.Chinese Acad Sci, Ctr Ocean Megasci, Qingdao 266071, Peoples R China
4.Qingdao Natl Lab Marine Sci & Technol, Lab Ocean & Climate Dynam, Qingdao 266237, Peoples R China
5.Shandong Univ Sci & Technol, Coll Math & Syst Sci, Qingdao 266590, Peoples R China
First Author AffilicationKey Laboratory of Ocean Circulation and Wave Studies, Institute of Oceanology, Chinese Academy of Sciences;  Center for Ocean Mega-Science, Chinese Academy of Sciences
Corresponding Author AffilicationKey Laboratory of Ocean Circulation and Wave Studies, Institute of Oceanology, Chinese Academy of Sciences;  Center for Ocean Mega-Science, Chinese Academy of Sciences
Recommended Citation
GB/T 7714
Wang, Ru,Hou, Yijun,Liu, Ze. Energy Sources Generation and Energy Cascades along the Kuroshio East of Taiwan Island and the East China Sea[J]. JOURNAL OF MARINE SCIENCE AND ENGINEERING,2021,9(7):24.
APA Wang, Ru,Hou, Yijun,&Liu, Ze.(2021).Energy Sources Generation and Energy Cascades along the Kuroshio East of Taiwan Island and the East China Sea.JOURNAL OF MARINE SCIENCE AND ENGINEERING,9(7),24.
MLA Wang, Ru,et al."Energy Sources Generation and Energy Cascades along the Kuroshio East of Taiwan Island and the East China Sea".JOURNAL OF MARINE SCIENCE AND ENGINEERING 9.7(2021):24.
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