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sea surface temperature evolution in the yellow sea warm current pathway and its teleconnection with high and low latitude forcing during the mid-late Holocene

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Journal of Oceanology and Limnology 2022年第1期40卷 93-109页

作者： Zhong PI Fengming CHANG Tiegang LI Yikun CUI Key Laboratory of Marine Geology and Environment Institute of OceanologyChinese Academy of SciencesQingdao 266071China Key Laboratory of Marine Sedimentology and Environmental Geology First Institute of OceanographyMinistry of Natural Resources(MNR)Qingdao 266061China Laboratory for Marine Geology and Environment Pilot National Laboratory for Marine Science and Technology(Qingdao)Qingdao 266237China Center for Ocean Mega-Science Chinese Academy of SciencesQingdao 266071China University of Chinese Academy of Sciences Beijing 100049China School of Geography and Ocean Science Collaborative Innovation Center of South China Sea StudiesNanjing UniversityNanjing 210023China

sea surface temperature(SST)in the yellow sea warm current(YSWC)pathway is sensitive to the East Asian Winter Monsoon(EAWM)and YSWC.However,the role of the YSWC in the evolution of regional SST remains unclear.Here,we present new U 37 k′based SST and grain size sequences spanning the last 6092 years in the sediment core Z1,which was retrieved from the central yellow sea muddy area.Overall,U 37 k′-SST gradually increased since 6.1 ka BP,with a series of centennial-scale fl uctuations.Its variation was mainly caused by EAWM when YSWC was weak between 6.1 and~3.9 ka BP,as shown by the end-member content of grain size.However,after YSWC was fully developed,i.e.,since~3.9 ka BP,it exerted critical eff ects on SST evolution in its pathway.The 1010-and 538-year cycles of the SST sequence indicated a basic control of solar activity on the oceanic conditions in the yellow sea.It is suggested that the variation of total solar irradiance was amplifi ed by thermohaline circulation and then transmitted to the yellow sea through the EAWM.Meanwhile,the tropical Pacifi c signal of El Niño was transmitted to the YSWC through the Kuroshio current.The dual properties of warm water transported by YSWC to compensate the EAWM and driving by Kuroshio current closely linked the variation of SST in the YSWC pathway to the Northern Hemisphere high latitude climate and the tropical Pacifi c.These fi ndings highlight the signifi cance of YSWC on regional SST evolution and its teleconnection to high and low latitude forcing,which grains a better understanding of the long-term evolution of SST in the middle latitude yellow sea.

关键词： yellow sea warm current U 37 k′-SST East Asian Winter Monsoon Kuroshio current high and low latitude forcing

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Characteristics of zooplankton community in North yellow sea unveiled an indicator species for the yellow sea warm current in winter: Euchaeta plana

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Journal of Oceanology and Limnology 2020年第6期38卷 1762-1770页

作者： CHEN Hongju ZHU Yanzhong LIU Guangxing Key Laboratory of Marine Environment and Ecology Ministry of EducationOcean University of ChinaQingdao 266100China Marine Ecology and Environmental Science Laboratory Pilot National Laboratory for Marine Science and Technology(Qingdao)Qingdao 266200China Research Center of Ecological Environment for Yangtze River Economic Belt Chinese Research Academy of Environmental SciencesBeijing 100012China

Zooplankton distributions are largely influenced by both biotic and abiotic factors in the surrounding environment.Some zooplankton species can be used as bio-indicators for particular currents and water masses to help discover the dynamics of water current in the ocean.In this study,we investigated the distribution of zooplankton in North yellow sea(NYS)during winter when the yellow sea warm current(YSWC)influenced that area.Zooplankton communities in the NYS were dominated by temperate and warm-temperate species,such as Calanus sinicus,Paracalanus parvus,Acartia bifilosa,and Sagitta crassa.Two warm-water species,Eucheata plana and Sagitta enflata were also present.Cluster analysis grouped NYS zooplankton into three communities,the Shandong Coastal Community(SCC)in the Shandong neritic area,the yellow sea Central Community(YSCC)in the central waters of the NYS,and the Liaoning Coastal Community(LCC)in the Liaoning neritic area.Abundances varied significantly among these communities,with an average of 102.2 ind./m^3 in SCC,179.8 ind./m^3 in YSCC,and 1244.2 ind./m^3 in LCC.Depth and the bottom(3 m from the sea floor)temperature were likely the primary abiotic factors influencing zooplankton distributions.The appearance of E.plana,an indicator species for the YSWC path,indicated a significant northwestward trend for the YSWC in 2007.

关键词： North yellow sea yellow sea warm current zooplankton bio-indicator community structure

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The influence of the yellow sea warm current on the biodiversity of Bohai sea

The influence of the yellow sea warm current on the biodiver...

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“全球变化下的海洋与湖沼生态安全”学术交流会

作者： WANG Caixia HU Xiaoke WANG Yibo Key Laboratory of Coastal Biology and Bioresource Utilization Yantai Institute of Coastal Zone ResearchChinese Academy of Sciences

In this study, a total of 41 stations with both surface and benthic samples of phytoplankton and microorganisms were collected from December 14 th to December 25 th in Bohai sea, 2013. According to the biological taxonomy, metagenomics and proteomics data, the compositions and diversities of phytoplankton and microorganism were determined. Furthermore, their relationships with the yellow sea warm current were investigated. The most wide spread species of phytoplankton in winter were Actinocyclus octonarius, Ceratium fusus, Coscinodiscus asteromphalus, Coscinodiscus oculusiridis, Coscinodiscus sp., Melosira sulcata, while the most abundant species were Actinocyclus octonarius, Chaetoceros sp., Coscinodiscus sp., Nitzschia pungens, Rhizosolenia alata f. Indica, Schroederella delicatula. Our results indicated that the yellow sea warm current had dramatic influences on the diversities of both phytoplankton and microorganisms mainly through temperature and salinity.

关键词： phytoplankton microorganism diversity yellow sea warm current

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Recent improvements to the physical model of the Bohai sea,the yellow sea and the East China sea Operational Oceanography Forecasting System

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Acta Oceanologica Sinica 2021年第11期40卷 87-103页

作者： Ang Li Xueming Zhu Yunfei Zhang Shihe Ren Miaoyin Zhang Ziqing Zu Hui Wang Key Laboratory of Marine Hazards Forecasting National Marine Environmental Forecasting CenterMinistry of Natural ResourcesBeijing 100081China Southern Marine Science and Engineering Guangdong Laboratory(Zhuhai) Zhuhai 519000China

In order to satisfy the increasing demand for the marine forecasting capacity,the Bohai sea,the yellow sea and the East China sea Operational Oceanography Forecasting System(BYEOFS)has been upgraded and improved to Version 2.0.Based on the Regional Ocean Modeling System(ROMS),a series of comparative experiments were conducted during the improvement process,including correcting topography,changing sea surface atmospheric forcing mode,adjusting open boundary conditions,and considering atmospheric pressure correction.(1)After the topography correction,the volume transport and meridional velocity maximum of yellow sea warm current increase obviously and the unreasonable bending of its axis around 36.1°N,123.5°E disappears.(2)After the change of sea surface forcing mode,an effective negative feedback mechanism is formed between predicted sea surface temperature(SST)by the ocean model and sea surface radiation fluxes fields.The simulation errors of SST decreased significantly,and the annual average of root-mean-square error(RMSE)decreased by about 18%.(3)The change of the eastern lateral boundary condition of baroclinic velocity from mixed Radiation-Nudging to Clamped makes the unreasonable westward current in Tsushima Strait disappear.(4)The adding of mean sea level pressure correction option which forms the mean sea level gradient from the Bohai sea and the yellow sea to the western Pacific in winter and autumn is helpful to increasing the fluctuation of SLA and outflow of the yellow sea when the cold high air pressure system controls the yellow sea area.

关键词： Operational Oceanography Forecasting System East China sea SST yellow sea warm current

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