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GUO Jie, JI Diansheng, HOU Chawei, GUO Kai, JI Ling. Impact of tropical cyclone Matmo on mixed zone of the Yellow and Bohai Seas[J]. Journal of Oceanology and Limnology, 2018, 36(5): 1484-1493

Impact of tropical cyclone Matmo on mixed zone of the Yellow and Bohai Seas

GUO Jie1, JI Diansheng2, HOU Chawei2, GUO Kai1, JI Ling2
1 Yantai Institute of Coastal Zone Research, Chinese Academy of Sciences, Key Laboratory of Coastal Environmental Processes and Ecological Remediation, CAS;Shandong Provincial Key Laboratory of Coastal Environmental Processes, Yantai 264003, China;
2 Yantai Marine Environmental Monitoring Central Station, State Oceanic Administration(SOA), Yantai 264006, China
The Bohai Sea is a low-lying semi-enclosed sea area that is linked to the Yellow Sea via the Bohai straits (mixed zone). Its offshore seabed is shallow, which makes it vulnerable to serious marine meteorological disasters associated with the northward passage of Pacific tropical cyclones. Analyses on data of remote sensing and buoy of the mixed zone of the Yellow and Bohai seas indicate that all the wind speed, significant wave height, and salinity (SAL) increased, sea surface temperature decreased, and wind energy density changed considerably during the passage of tropical cyclone Matmo on July 25, 2014. It was found that the SAL inversion layer in the mixed zone of the Yellow and Bohai Seas was caused by the tropical cyclone. Furthermore, it was found that the tropical cyclone transported the northern Yellow Sea cold water mass (NYSCWM) into the mixed zone of the Yellow and Bohai Seas. The NYSCWM has direct influence on both the aquaculture and the ecological environment of the region. Therefore, further research is needed to establish the mechanism behind the formation of the SAL inversion layer in the mixed zone, and to determine the influence of tropical cyclones on the NYSCWM.
Key words:    Yellow and Bohai seas|mixed zone|northern Yellow Sea cold water mass|wind speed|sea surface temperature|salinity   
Received: 2017-03-17   Revised:
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