Derivation of the thermal characteristics of mesoscale eddies

CHEN Xuan; PAN Jing; ZHENG Chongwei; ZHANG Xi; HE Ming

doi:10.1007/s13131-017-1036-9

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CHEN Xuan, PAN Jing, ZHENG Chongwei, ZHANG Xi, HE Ming. Derivation of the thermal characteristics of mesoscale eddies[J]. Acta Oceanologica Sinica, 2017, 36(3): 8-13. doi: 10.1007/s13131-017-1036-9

Citation:

CHEN Xuan, PAN Jing, ZHENG Chongwei, ZHANG Xi, HE Ming. Derivation of the thermal characteristics of mesoscale eddies[J]. Acta Oceanologica Sinica, 2017, 36(3): 8-13. doi: 10.1007/s13131-017-1036-9

CHEN Xuan, PAN Jing, ZHENG Chongwei, ZHANG Xi, HE Ming. Derivation of the thermal characteristics of mesoscale eddies[J]. Acta Oceanologica Sinica, 2017, 36(3): 8-13. doi: 10.1007/s13131-017-1036-9

Citation:

CHEN Xuan, PAN Jing, ZHENG Chongwei, ZHANG Xi, HE Ming. Derivation of the thermal characteristics of mesoscale eddies[J]. Acta Oceanologica Sinica, 2017, 36(3): 8-13. doi: 10.1007/s13131-017-1036-9

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Derivation of the thermal characteristics of mesoscale eddies

doi: 10.1007/s13131-017-1036-9

1.
The 75839 Army, People's Liberation Army, Guangzhou 510510, China
2.
National Key Laboratory of Numerical Modeling for Atmospheric Sciences and Geophysical Fluid Dynamics(LASG), Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing 100029, China
3.
National Key Laboratory of Numerical Modeling for Atmospheric Sciences and Geophysical Fluid Dynamics(LASG), Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing 100029, China;Dalian Naval Academy, People's Liberation Army, Dalian 116018, China;College of Meteorology and Oceanography, People's Liberation Army University of Science and Technology, Nanjing 211101, China
4.
College of Meteorology and Oceanography, People's Liberation Army University of Science and Technology, Nanjing 211101, China
5.
College of Marine Life Science, Ocean University of China, Qingdao 266003, China

Received Date: 2016-01-21
Rev Recd Date: 2016-03-29

Abstract

Abstract

This study aims at explaining the relationship between thermodynamic characteristics and direction of rotation of mesoscale eddies (MEs). The geometric characteristics of the MEs are under the following assumptions:the structure of the MEs is symmetrical, and changes of oceanic physical variables are close to linear features in the radial direction in the ME regions. Based on these assumptions, by using primitive equations without friction under a cylindrical coordinate system, the thermodynamic characteristics of the MEs are derived, showing that the conventional relationship of warm anticyclonic eddies with high sea surface height (SSH) and cold cyclonic eddies with low SSH is not consistent with the SSH and sea surface temperature (SST) observations of eddies. The results show that the symmetrical form is an ideal approximation for the geometric characteristics of MEs. In consideration of the above assumptions, there are advantages for derivation of the characteristics of the MEs under a cylindrical coordinate.
- mesoscale eddies,
- thermodynamic characteristics,
- symmetry

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References(29)

References

Chelton D B, Schlax M G, Samelson R M. 2011. Global observations of nonlinear mesoscale eddies. Progress in Oceanography, 91(2):167-216

Chen Gengxin, Hou Yijun, Chu Xiaoqing. 2011. Mesoscale eddies in the South China Sea:mean properties, spatiotemporal variability, and impact on thermohaline structure. Journal of Geophysical Research:Oceans, 116(C6):C06018

Dong Changming, Mavor T, Nencioli F, et al. 2009. An oceanic cyclonic eddy on the lee side of Lanai Island, Hawai'i. Journal of Geophysical Research:Oceans, 114(C10):C10008

Ebuchi N, Hanawa K. 2001. Trajectory of mesoscale eddies in the Kuroshio recirculation region. Journal of Oceanography, 57(4):471-480

Glorioso P D, Piola A R, Leben R R. 2005. Mesoscale eddies in the subantarctic front-Southwest Atlantic. Scientia Marina, 69(S2):7-15

Guan Bingxian, Yuan Yaochu. 2006. Overview of studies on some eddies in the China seas and their adjacent seas:I. The South China Sea and the region east of Taiwan. Haiyang Xuebao (in Chinese), 28(3):1-16

Hamilton P, Berger T J, Johnson W. 2002. On the structure and motions of cyclones in the northern Gulf of Mexico. Journal of Geophysical Research:Oceans, 107(C12):1-1-1-18

Hu Po, Hou Yijun, Le Kentang, et al. 2007. Study advances on the Kuroshio in the East China Sea and currents in the region east of Ryukyu Islands. Studia Marina Sinica (in Chinese), (48):28-34

Hwang C, Wu C R, Kao R. 2004. Topex/Poseidon observations of mesoscale eddies over the subtropical countercurrent:kinematic characteristics of an anticyclonic eddy and a cyclonic eddy. Journal of Geophysical Research:Oceans, 109(C8):C08013

Johannessen J A, Sandven S, Lygre K, et al. 1989. Three-dimensional structure of mesoscale eddies in the Norwegian coastal current. Journal of Physical Oceanography, 19(1):3-19

Lin Pengfei. 2005. Statistical analyses on mesoscale eddies in the South China Sea and the Northwest Pacific (in Chinese)[dissertation]. Beijing:The Institute of Oceanology, Chinese Academy of Sciences

Lou Ruyun, Yuan Yaochu. 2004. The circulation on the both sides of the Ryukyu Islands during the summer of 1995 and 1996. Haiyang Xuebao (in Chinese), 26(3):16-27

Pearce A F, Griffiths R W. 1991. The mesoscale structure of the Leeuwin Current:a comparison of laboratory models and satellite imagery. Journal of Geophysical Research:Oceans, 96(C9):16739-16757

Roemmich D, Gilson J. 2001. Eddy transport of heat and thermocline waters in the North Pacific:a key to interannual/decadal climate variability?. Journal of Physical Oceanography, 31(3):675-688

Shi Jiuxin, Zhao Jinping, Jiao Yutian, et al. 2008. Structure of a subsurface eddy in Canadian basin of Arctic Ocean. Chinese Journal of Polar Research (in Chinese), 20(1):1-13

Souza J M A C, de Boyer Montégut C, Le Traon P Y. 2011. Comparison between three implementations of automatic identification algorithms for the quantification and characterization of mesoscale eddies in the South Atlantic Ocean. Ocean Science, 7(3):317-334

Stewart R H. 2009. Introduction to Physical Oceanography. Florida:Orange Grove Texts Plus, 108, 171-172

Su Jilan. 2005. Overview of the South China Sea circulation and its dynamics. Haiyang Xuebao (in Chinese), 27(6):1-8

Thorpe S A. 2007. An Introduction to Ocean Turbulence. Cambridge:Cambridge University Press, 208

Wang Dongxiao, Chen Ju, Chen Rongyu, et al. 2004a. Hydrographic and circulation characteristics in middle and southern South China Sea in summer, 2000. Oceanologia et Limnologia Sinica (in Chinese), 35(2):97-109

Wang Guihua, Su Jilan, Qi Yiquan. 2004b. Advances in studying mesoscale eddies in South China Sea. Advances in Earth Science (in Chinese), 20(8):882-886

Xiu Shumeng, Zhen Quan'an, Sun Xiangping. 2002. Shelf upwelling induced by mesoscale eddy. Journal of Hydrodynamics (in Chinese), 17(1):61-68

Xu Lixiao, Xie Shangping, McClean J L, et al. 2014. Mesoscale eddy effects on the subduction of North Pacific mode waters. Journal of Geophysical Research:Oceans, 119(8):4867-4886

Yuan Yaochu, Yang Chenghao, Wang Zhanggui. 2006. Variability of the Kuroshio in the East China Sea and the currents east of Ryukyu Islands:II. Variability of the currents and the meso-scale eddies in the region southeast of Okinawa Island. Haiyang Xuebao (in Chinese), 28(3):17-28

Zheng Chongwei, Li Chongyin, Pan Jing, et al. 2016. An overview of global ocean wind energy resource evaluations. Renewable and Sustainable Energy Reviews, 53:1240-1251

Zheng Chongwei, Pan Jing. 2014. Assessment of the global ocean wind energy resource. Renewable and Sustainable Energy Reviews, 33:382-391

Zheng Chongwei, Shao Longtan, Shi Wenli, et al. 2014. An assessment of global ocean wave energy resources over the last 45 a. Acta Oceanologica Sinica, 33(1):92-101

Zheng Chongwei, Su Qin, Liu Tiejun. 2013a. Wave energy resources assessment and dominant area evaluation in the China sea from 1988 to 2010. Haiyang Xuebao (in Chinese), 35(3):104-111

Zheng Chongwei, Zhou Lin, Huang Chaofan, et al. 2013b. The long-term trend of the sea surface wind speed and the wave height (wind wave, swell, mixed wave) in global ocean during the last 44 a. Acta Oceanologica Sinica, 32(10):1-4

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