Enhanced internal tidal mixing in the Philippine Sea mesoscale environment

doi:10.5194/npg-28-271-2021

IOCAS-IR > 海洋环流与波动重点实验室

	Enhanced internal tidal mixing in the Philippine Sea mesoscale environment
	You, Jia1,3,4 ; Xu, Zhenhua 1,2,3,4,5; Li, Qun 6; Robertson, Robin 7; Zhang, Peiwen1,3,4 ; Yin, Baoshu 1,2,3,4,5
	2021-05-25
发表期刊	NONLINEAR PROCESSES IN GEOPHYSICS
ISSN	1023-5809
卷号	28 期号:2 页码:271-284
通讯作者	Xu, Zhenhua([email protected])
摘要	Turbulent mixing in the ocean interior is mainly attributed to internal wave breaking; however, the mixing properties and the modulation effects of mesoscale environmental factors are not well known. Here, the spatially inhomogeneous and seasonally variable diapycnal diffusivities in the upper Philippine Sea were estimated from Argo float data using a strain-based, fine-scale parameterization. Based on a coordinated analysis of multi-source data, we found that the driving processes for diapycnal diffusivities mainly included the near-inertial waves and internal tides. Mesoscale features were important in intensifying the mixing and modulating of its spatial pattern. An interesting finding was that, besides near-inertial waves, internal tides also contributed significant diapycnal mixing in the upper Philippine Sea. The seasonal cycles of diapycnal diffusivities and their contributors differed zonally. In the midlatitudes, wind mixing dominated and was strongest in winter and weakest in summer. In contrast, tidal mixing was more predominant in the lower latitudes and had no apparent seasonal variability. Furthermore, we provide evidence that the mesoscale environment in the Philippine Sea played a significant role in regulating the intensity and shaping the spatial inhomogeneity of the internal tidal mixing. The magnitudes of internal tidal mixing were greatly elevated in regions of energetic mesoscale processes. Anticyclonic mesoscale features were found to enhance diapycnal mixing more significantly than cyclonic ones.
DOI	10.5194/npg-28-271-2021
收录类别	SCI
语种	英语
资助项目	National Key Research and Development Program of China; Strategic Priority Research Program of Chinese Academy of Sciences; National Natural Science Foundation of China[2016YFC1401404]; National Natural Science Foundation of China[XDB42000000]; National Natural Science Foundation of China[92058202]; National Natural Science Foundation of China[2017YFA0604102]; National Natural Science Foundation of China[XDA22050202]; National Natural Science Foundation of China[91858103]; CAS Key Research Program of Frontier Sciences[QYZDB-SSW-DQC024]; CAS Key Deployment Project of Center for Ocean Mega Research of Science[COMS2020Q07]; CAS[133244KYSB20190031]; CSIRO[133244KYSB20190031]
WOS研究方向	Geology ; Mathematics ; Meteorology & Atmospheric Sciences ; Physics
WOS类目	Geosciences, Multidisciplinary ; Mathematics, Interdisciplinary Applications ; Meteorology & Atmospheric Sciences ; Physics, Fluids & Plasmas
WOS记录号	WOS:000656210500001
出版者	COPERNICUS GESELLSCHAFT MBH
引用统计	被引频次：9[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/337002/176790
专题	海洋环流与波动重点实验室
通讯作者	Xu, Zhenhua
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.Chinese Acad Sci, Ctr Ocean Megasci, Qingdao, Peoples R China 4.Univ Chinese Acad Sci, Coll Earth & Planetary Sci, Beijing, Peoples R China 5.Chinese Acad Sci, Inst Oceanol, CAS Engn Lab Marine Ranching, Qingdao, Peoples R China 6.Polar Res Inst China, Shanghai, Peoples R China 7.Xiamen Univ Malaysia, China ASEAN Coll Marine Sci, Sepang, Malaysia
第一作者单位	中国科学院海洋研究所; 中国科学院海洋大科学研究中心
通讯作者单位	中国科学院海洋研究所; 中国科学院海洋大科学研究中心
推荐引用方式 GB/T 7714	You, Jia,Xu, Zhenhua,Li, Qun,et al. Enhanced internal tidal mixing in the Philippine Sea mesoscale environment[J]. NONLINEAR PROCESSES IN GEOPHYSICS,2021,28(2):271-284.
APA	You, Jia,Xu, Zhenhua,Li, Qun,Robertson, Robin,Zhang, Peiwen,&Yin, Baoshu.(2021).Enhanced internal tidal mixing in the Philippine Sea mesoscale environment.NONLINEAR PROCESSES IN GEOPHYSICS,28(2),271-284.
MLA	You, Jia,et al."Enhanced internal tidal mixing in the Philippine Sea mesoscale environment".NONLINEAR PROCESSES IN GEOPHYSICS 28.2(2021):271-284.

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