Mixing in the Philippine Sea: Geography variability and parameterization

doi:10.1016/j.dsr2.2022.105143

CORC > 海洋研究所 > 中国科学院海洋研究所 > 海洋生态与环境科学重点实验室

	Mixing in the Philippine Sea: Geography variability and parameterization
	You, Jia 1,2,3,4; Xu, Zhenhua 1,2,3,4,5; Zhang, Peiwen 1,2,3,4; Hu, Xiaokai 6,7; Liao, Guanghong 6,7,8; Yin, Baoshu 1,2,3,4,5; Robertson, Robin 9
刊名	DEEP-SEA RESEARCH PART II-TOPICAL STUDIES IN OCEANOGRAPHY
	2022-08-01
卷号	202 页码:12
关键词	Microstructure measurements Turbulent mixing Philippine sea Mixing parameterization Internal tide
ISSN号	0967-0645
DOI	10.1016/j.dsr2.2022.105143
通讯作者	Xu, Zhenhua(xuzhenhua@qdio.ac.cn) ; Zhang, Peiwen(zpw@qdio.ac.cn)
英文摘要	The Philippine Sea Mixing Experiment (PhiMix) was carried out in 2021 concurrently from two research vessels, obtaining microstructure measurements and fine structure-based estimates of turbulence and diffusivity covering nearly the whole Philippine basin for the first time. The inhomogeneous spatial distribution and weak magnitudes of turbulent mixing in the Philippine Sea basin were revealed, according to the upper-ocean turbulence measurements and full-depth CTD datasets. The averaged diffusivities in the Philippine Basin were similar to 10(-2) m(2) s(-1) in the surface mixed layer and similar to 10(-5.5) m(2) s(-1) in the ocean interior. Below the thermocline, the diffusivities generally increased and reached 10(-4) m(2) s(-1) above rough topography. Centered on the Palau Ridge, a significant east-west asymmetry was noted, with stronger mixing on the east side of the ridge. Additionally, the diapycnal diffusivity's spatial variability coincided with that inferred from tidal mixing between 500 and 3000 m. Typical dissipation rate and diapycnal diffusivity profiles in the Philippine Sea differed from the global averaged profiles, which form the basis of most existing mixing parameterizations. Here we proposed an improved parameterization scheme based on these new direct microstructure observations in the Philippine Sea. The new mixing parameterization scheme (PhiMixPar-PMP) performed well for the Northwest Pacific Ocean in ocean simulations. This regional study on mixing properties in the Philippine Sea can fill a knowledge gap in the big picture of global mixing geography and improve turbulence parameterizations in the ocean models.
资助项目	National Key Research and Development Program of China[2017YFA0604102] ; National Natural Science Foundation of China[92058202] ; Strategic Priority Research Program of Chinese Academy of Sciences[XDA22050202] ; Strategic Priority Research Program of Chinese Academy of Sciences[XDB42000000] ; Shandong special funding for Qingdao Pilot National Laboratory for Marine Science and Technology[2022QNLM010302] ; Key Research Program of Frontier Sciences, CAS[QYZDB-SSWDQC024] ; NSFC Shiptime Sharing Project[42049582] ; NSFC Shiptime Sharing Project[42049909] ; Major Research Plan on West-Pacific Earth System Multispheric Interactions[92058202]
WOS研究方向	Oceanography
语种	英语
出版者	PERGAMON-ELSEVIER SCIENCE LTD
WOS记录号	WOS:000888229700001
内容类型	期刊论文
源URL	[http://ir.qdio.ac.cn/handle/337002/180216]
专题	海洋研究所_海洋生态与环境科学重点实验室
通讯作者	Xu, Zhenhua; Zhang, Peiwen
作者单位	1.Chinese Acad Sci, Inst Oceanol, CAS Key Lab Ocean Circulat & Waves, Qingdao, Peoples R China 2.Pilot Natl Lab Marine Sci & Technol, Qingdao, Peoples R China 3.Univ Chinese Acad Sci, Coll Earth & Planetary Sci, Beijing, Peoples R China 4.Chinese Acad Sci, Ctr Ocean Megasci, Qingdao, Peoples R China 5.Chinese Acad Sci, CAS Engn Lab Marine Ranching, Inst Oceanol, Qingdao, Peoples R China 6.Hohai Univ, Coll Oceanog, Nanjing, Peoples R China 7.Hohai Univ, Key Lab Coastal Disaster & Protect, Minist Educ, Nanjing, Peoples R China 8.Pilot Natl Lab Marine Sci & Technol, Lab Reg Oceanog & Numer Modeling, Qingdao, Peoples R China 9.Xiamen Univ Malaysia, China Asean Coll Marine Sci, Sepang, Malaysia
推荐引用方式 GB/T 7714	You, Jia,Xu, Zhenhua,Zhang, Peiwen,et al. Mixing in the Philippine Sea: Geography variability and parameterization[J]. DEEP-SEA RESEARCH PART II-TOPICAL STUDIES IN OCEANOGRAPHY,2022,202:12.
APA	You, Jia.,Xu, Zhenhua.,Zhang, Peiwen.,Hu, Xiaokai.,Liao, Guanghong.,...&Robertson, Robin.(2022).Mixing in the Philippine Sea: Geography variability and parameterization.DEEP-SEA RESEARCH PART II-TOPICAL STUDIES IN OCEANOGRAPHY,202,12.
MLA	You, Jia,et al."Mixing in the Philippine Sea: Geography variability and parameterization".DEEP-SEA RESEARCH PART II-TOPICAL STUDIES IN OCEANOGRAPHY 202(2022):12.