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Observed and Model-Simulated Dramatic Bottom Temperature Variations During a Weakened Typhoon in the Northern Yellow Sea

文献类型：期刊论文

作者Yu, Hang3,4,8; Wang, Nan4; Ding, Yang3,7,8; Li, Rui10; Bao, Xianwen4; Gao, Guandong6,9; Bi, Congcong1,5,12; Zhou, Lingling2,4; Yao, Zhigang4; Wan, Kai11
刊名JOURNAL OF GEOPHYSICAL RESEARCH-OCEANS
出版日期2025-06-01
卷号130期号:6页码:32
关键词yellow sea bottom cold water mass typhoon coastal current near-inertial oscillations ocean model bottom temperature
ISSN号2169-9275
DOI10.1029/2025JC022401
通讯作者Ding, Yang(dingyangpol@ouc.edu.cn)
英文摘要Observations and a high-resolution ocean model were utilized to investigate the significant bottom temperature response in the north Yellow Sea (NYS) during the weakening of Typhoon Lekima in August 2019. The cyclonic typhoon winds generated prominent cyclonic currents, with eastward (westward) currents along the southern (northern) coast of the NYS. Concurrently, high sea levels occurred along the northern and southern coasts, whereas low sea levels were present in the central NYS. This sea level pattern persisted for a week after the typhoon's dissipation, maintaining the eastward (westward) currents along the southern (northern) coast. The sustained eastward alongshore current transported warm bottom water along the northern coast of the Shandong Peninsula, resulting in a significant bottom temperature increase over 10 degrees C during 4 days. Simultaneously, the westward alongshore current carried cold water from the Yellow Sea Cold Water Mass (YSCWM) along the southern coast of the Liaodong Peninsula, leading to a prominent bottom temperature decrease of 13 degrees C over 6 days. Near-inertial oscillations disturbed the thermocline and created favorable conditions for the bottom warm water advection. Temperature budget analysis further confirmed the dominant role of horizontal temperature advection in these dramatic bottom temperature anomalies. The relatively weaker wind disturbance could still drive strong bottom temperature change in the YSCWM boundary with sharp temperature gradient, which underscores the impact of weaker synoptic weather systems on significant bottom temperature variations in coastal regions with sharp temperature front, which are often ignored compared to much stronger weather events such as typhoons.
WOS关键词COLD-WATER MASS ; SEASONAL EVOLUTION ; COASTAL OCEAN ; ZHANGZI ISLAND ; INERTIAL WAVES ; WARM CURRENT ; ENERGY FLUX ; SUMMER ; IMPACT ; LAYER
资助项目National Natural Science Foundation of China[42006004] ; National Natural Science Foundation[2021YFB3901300] ; National Key R&D Program of China[LJKZ0709] ; Liaoning Provincial Department of Education[ZR2021MD007] ; Natural Science Foundation of Shandong Province[KF-2023-111] ; Key Laboratory of Ocean Space Resource Management Technology
WOS研究方向Oceanography
语种英语
WOS记录号WOS:001512204400001
出版者AMER GEOPHYSICAL UNION
源URL[http://ir.qdio.ac.cn/handle/337002/202378]  
专题海洋研究所_海洋环流与波动重点实验室
通讯作者Ding, Yang
作者单位1.Liaoning Key Lab Real time Marine Environm Monitor, Dalian, Peoples R China
2.MNR, Key Lab Ocean Space Resource Management Technol, Hangzhou, Peoples R China
3.Ocean Univ China, Phys Oceanog Lab, Qingdao, Peoples R China
4.Ocean Univ China, Coll Ocean & Atmospher Sci, Qingdao, Peoples R China
5.Dalian Ocean Univ, Operat Oceanog Inst OOI, Dalian, Peoples R China
6.Chinese Acad Sci, Ctr Mega Sci, Qingdao, Peoples R China
7.Laoshan Lab, Qingdao, Peoples R China
8.Ocean Univ China, Frontier Sci Ctr Deep Ocean Multispheres & Earth S, Qingdao, Peoples R China
9.Chinese Acad Sci, Inst Oceanol, Key Lab Ocean Circulat & Waves, Qingdao, Peoples R China
10.North China Sea Marine Forecasting Ctr, Minist Nat Resources, Qingdao, Peoples R China
推荐引用方式
GB/T 7714		 Yu, Hang,Wang, Nan,Ding, Yang,et al. Observed and Model-Simulated Dramatic Bottom Temperature Variations During a Weakened Typhoon in the Northern Yellow Sea[J]. JOURNAL OF GEOPHYSICAL RESEARCH-OCEANS,2025,130(6):32.
APA Yu, Hang.,Wang, Nan.,Ding, Yang.,Li, Rui.,Bao, Xianwen.,...&Wan, Kai.(2025).Observed and Model-Simulated Dramatic Bottom Temperature Variations During a Weakened Typhoon in the Northern Yellow Sea.JOURNAL OF GEOPHYSICAL RESEARCH-OCEANS,130(6),32.
MLA Yu, Hang,et al."Observed and Model-Simulated Dramatic Bottom Temperature Variations During a Weakened Typhoon in the Northern Yellow Sea".JOURNAL OF GEOPHYSICAL RESEARCH-OCEANS 130.6(2025):32.

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来源：海洋研究所

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