Observational Analysis of Vertical Heat Flux Caused by Typhoon-Induced Near-Inertial Waves Under the Modulation of Mesoscale Eddies

doi:10.1029/2024JC021053

CORC > 海洋研究所 > 中国科学院海洋研究所 > 海洋环流与波动重点实验室

	Observational Analysis of Vertical Heat Flux Caused by Typhoon-Induced Near-Inertial Waves Under the Modulation of Mesoscale Eddies
	Lu, Xiaojie 6,7,8; Dong, Changming 5,6,8; Zhang, Han 6,7; Sian, Kenny T. C. Lim Kam 4,8; Yang, Jingsong 6,7; Xu, Zhenhua 2,3; Li, Gang 8; Wang, Qingyue 6,7,8; Cao, Qian 8; You, Zhiwei 8
刊名	JOURNAL OF GEOPHYSICAL RESEARCH-OCEANS
	2024-04-01
卷号	129 期号:4 页码:15
ISSN号	2169-9275
DOI	10.1029/2024JC021053
通讯作者	Dong, Changming(cmdong@nuist.edu.cn)
英文摘要	Tropical cyclones (TCs) induce heat pump and cold suction in the upper ocean layer. However, limited research investigated whether this heat can be effectively transported into the deep ocean. The present study shows that seawater at Station S2 is anomalously warmer in the deep ocean layer than at S1 and S3 during Typhoon Kalmaegi (2014) in the South China Sea. The turbulence-induced vertical heat flux is estimated based on fine-scale mixing parameterization but it cannot explain the warming rate below the thermocline. Therefore, a new method is proposed to estimate the vertical velocity, allowing us to calculate the heat flux more accurately. To elucidate the underlying causes of the observed differences, we analyze horizontal velocity to examine the role of mesoscale eddies in modulating near-inertial waves (NIWs)-induced vertical heat flux. Station S1 is located inside a cyclonic eddy while S2 and S3 are within two distinct anticyclonic eddies. According to the "Chimney Effect" theory, cyclonic (anticyclonic) eddies tend to limit (enhance) the vertical propagation of the NIWs. While this theory explains the confined heat flux at S1, it fails to explain the differences observed at S2 and S3. Further examination of the vertical structures and intensities of the two anticyclonic eddies reveals that the eddy at S2 extends much deeper and is stronger than that at S3, allowing the NIWs to propagate and transport heat deeper at S2 than at S3. The study demonstrates the role of TC-induced NIWs in deep ocean heat transport under the influence of mesoscale eddies. This study investigates how tropical cyclones (TCs) transfer heat into the deep ocean from the surface. We find that during Typhoon Kalmaegi (2014) in the South China Sea, the water in the deep ocean near Mooring S2 is significantly warmer compared to nearby locations. The difference is attributed to the types of ocean currents, like eddies, at each location. While Mooring S1 is in a cyclonic eddy, S2 and S3 are within two different anticyclonic eddies, which enhance the downward movement of ocean waves caused by the TC. Notably, the anticyclonic eddy at S2 is deeper and stronger, allowing for more heat to be transported into the deep ocean. This suggests that the effects of TCs can reach far below the ocean upper layer. It helps us understand more about how heat is transferred in the ocean interior, which is important to understand how climate change works. A method for calculating vertical velocity beneath the thermocline based on in situ data is developed Vertical heat transport is significantly influenced by near-inertial waves (NIWs) modulated by mesoscale eddies The depth to which an eddy reaches plays an important role in the vertical heat transport by NIWs
资助项目	National Science Foundation of China[42250710152] ; National Science Foundation of China[42192562] ; National Science Foundation of China[41906008] ; National Natural Science Foundation of China[SJKY19_0968] ; National Natural Science Foundation of China[KYCX21_0959] ; Postgraduate Research and Practice Innovation Program of Jiangsu Province ; Program for Innovation Research and Entrepreneurship Team in Jiangsu Province[311022001] ; Innovation Group Project of Southern Marine Science and Engineering Guangdong Laboratory (Zhuhai)[SML2021SP207] ; Southern Marine Science and Engineering Guangdong Laboratory (Zhuhai)
WOS关键词	UPPER OCEAN RESPONSE ; TROPICAL CYCLONES ; INTERNAL WAVES ; ENERGY ; STORM ; WAKE
WOS研究方向	Oceanography
语种	英语
出版者	AMER GEOPHYSICAL UNION
WOS记录号	WOS:001198173300001
内容类型	期刊论文
源URL	[http://ir.qdio.ac.cn/handle/337002/185076]
专题	海洋研究所_海洋环流与波动重点实验室
通讯作者	Dong, Changming
作者单位	1.Univ Grenoble Alpes, Lab Ecoulements Geophys & Ind LEGI, CNRS, Grenoble, France 2.Chinese Acad Sci, Key Lab Ocean Circulat & Waves KLOCAW, Qingdao, Peoples R China 3.Inst Oceanol, Chinese Acad Sci, Qingdao, Peoples R China 4.Wuxi Univ, Sch Atmospher Sci & Remote Sensing, Wuxi, Peoples R China 5.Univ Calif Los Angeles, Dept Atmospher & Ocean Sci, Los Angeles, CA 90095 USA 6.Southern Marine Sci & Engn Guangdong Lab Zhuhai, Zhuhai, Peoples R China 7.Minist Nat Resources, Inst Oceanog 2, State Key Lab Satellite Ocean Environm Dynam, Hangzhou, Peoples R China 8.Nanjing Univ Informat Sci & Technol, Sch Marine Sci, Ocean Modeling & Observat Lab, Nanjing, Peoples R China
推荐引用方式 GB/T 7714	Lu, Xiaojie,Dong, Changming,Zhang, Han,et al. Observational Analysis of Vertical Heat Flux Caused by Typhoon-Induced Near-Inertial Waves Under the Modulation of Mesoscale Eddies[J]. JOURNAL OF GEOPHYSICAL RESEARCH-OCEANS,2024,129(4):15.
APA	Lu, Xiaojie.,Dong, Changming.,Zhang, Han.,Sian, Kenny T. C. Lim Kam.,Yang, Jingsong.,...&Sommeria, Joel.(2024).Observational Analysis of Vertical Heat Flux Caused by Typhoon-Induced Near-Inertial Waves Under the Modulation of Mesoscale Eddies.JOURNAL OF GEOPHYSICAL RESEARCH-OCEANS,129(4),15.
MLA	Lu, Xiaojie,et al."Observational Analysis of Vertical Heat Flux Caused by Typhoon-Induced Near-Inertial Waves Under the Modulation of Mesoscale Eddies".JOURNAL OF GEOPHYSICAL RESEARCH-OCEANS 129.4(2024):15.