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中国海洋大学学报（自然科学英文版）
中国海洋大学学报（自然科学英文版）

文圣常（院士）

季刊

1672-5182

xbywb@ouc.edu.cn

0532-82032408

266003

山东省青岛市鱼山路5号

中国海洋大学学报（自然科学英文版）/Journal Journal of Ocean University of ChinaCSCDCSTPCD北大核心SCI
查看更多>>创刊宗旨：我刊及时反映和报道海洋科学与工程、海洋环境科学与工程、海洋气象、海洋药物、海洋遥感、海洋信息系统与管理工程、水产、湖沼等领域的最新研究成果。论文栏目设置：研究论文、技术报告、研究快报、高新技术与信息跟踪、特约评介、综述等。读者对象：国内海洋及相关学科领域的科技人员、教师和管理人员，主要是国际海洋科学界的同行，以英语为语言工具的读者。
正式出版
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    Long-Term Extreme Wave Characteristics in the Water Adjacent to China Based on ERA5 Reanalysis Data

    DU WenyanZHANG XuriSHI HongyuanLI Guanyu...
    1-10页
    查看更多>>摘要：Extreme waves have a profound impact on coastal infrastructure;thus,understanding the variation law of risky analysis and disaster prevention in coastal zones is necessary.This paper analyzed the spatiotemporal characteristics of extreme wave heights adjacent to China from 1979 to 2018 based on the ERA5 datasets.Nonstationary extreme value analysis is undertaken in eight repre-sentative points to investigate the trends in the values of 50-and 100-year wave heights.Results show that the mean value of extreme waves is the largest in the eastern part of Taiwan Island and the smallest in the Bohai Sea from 1979 to 2018.Only the extreme wave height in the northeastern part of Taiwan Island shows a significant increase trend in the study area.Nonstationary analysis shows remarkable variations in the values of 50-and 100-year significant wave heights in eight points.Considering the annual mean change,E1,E2,S1,and S2 present an increasing trend,while S3 shows a decreasing trend.Most points for the seasonal mean change demon-strate an increasing trend in spring and winter,while other points show a decreasing trend in summer and autumn.Notably,the E1 point growth rate is large in autumn,which is related to the change in typhoon intensity and the northward movement of the typhoon path.
      原文链接:
    • NETL
    • NSTL
    • 万方数据
    • 维普

    Data Quality Control Method of a New Drifting Observation Technology Named Drifting Air-Sea Interface Buoy

    LI ShuoWANG BinDENG Zeng'anWU Baoqin...
    11-22页
    查看更多>>摘要：An integral quality control(QC)procedure that integrates various QC methods and considers the design indexes and operational status of the instruments for the observations of drifting air-sea interface buoy was developed in the order of basic in-spection followed by targeted QC.The innovative method of combining a moving Hampel filter and local anomaly detection com-plies with statistical laws and physical processes,which guarantees the QC performance of meteorological variables.Two sets of observation data were used to verify the applicability and effectiveness of the QC procedure,and the effect was evaluated using the observations of the Kuroshio Extension Observatory buoy as the reference.The results showed that the outliers in the time series can be correctly identified and processed,and the quality of data improved significantly.The linear correlation between the quality-con-trolled observations and the reference increased,and the difference decreased.The correlation coefficient of wind speed before and after QC increased from 0.77 to 0.82,and the maximum absolute error decreased by approximately 2.8 m s-1.In addition,air pressure and relative humidity were optimized by 10-3-10-2 orders of magnitude.For the sea surface temperature,the weight of coefficients of the continuity test algorithm was optimized based on the sea area of data acquisition,which effectively expanded the applicability of the algorithm.
      原文链接:
    • NETL
    • NSTL
    • 万方数据
    • 维普

    Stability of the Stratification of Water Bodies in the North Passage of the Yangtze River Estuary Based on the EFDC Model

    WU De'anLI XinWANG Yigang
    23-32页
    查看更多>>摘要：To study the stratified stability of a water column in the North Passage of the Yangtze River Estuary,a numerical model of the hydrodynamics of this estuary is established using the EFDC model.On the basis of EFDC results,this paper derives and pro-vides the discriminative index of water body stability caused by salinity and analyzes the along-range variation in water body strati-fication stability in the North Passage of the Yangtze River Estuary and the periodic variation at a key location(bend area)based on the simulation results of the numerical model.This work shows that the water body in the bend area varies between mixed and strati-fied types,and the vertical average flow velocity has a good negative correlation with the differential velocity between the surface and bottom layers of the water body.The model simulation results validate the formulae for the stratified stability discriminant during spring tides.
      原文链接:
    • NETL
    • NSTL
    • 万方数据
    • 维普

    Role of Stokes Drift in Ocean Dynamics Under Typhoon Conditions in the Bohai Sea

    LI HaoqianWAN KaiWANG MenghanDENG Zeng'an...
    33-45页
    查看更多>>摘要：The effect of Stokes drift production(SDP),which includes Coriolis-Stokes forcing,Langmuir circulation,and Craik-Lei-bovich vortexes,on the upper ocean during typhoon passage in the Bohai Sea(BS),China,is investigated by using a coupled wave-current model.The role of SDP in turbulent mixing and the further dynamics during the entire typhoon period are comprehensively stud-ied.Experimental results show that SDP greatly increases turbulent mixing at all depths under typhoon conditions by up to seven times that under normal weather conditions.SDP generally strengthens sea surface cooling by more than 0.4℃,with the maximum reduction in sea surface temperature(SST)at the during-typhoon stage exceeding 2℃,which is approximately seven times larger than that under normal weather conditions.The SDP-induced decrease in current speed can exceed 0.2 m s-1,and the change in cur-rent direction is generally opposite the wind direction.These results suggest that Stokes drift depresses the effect of strong winds on currents by intensifying turbulent mixing.Mixed layer depth(MLD)is distinctly increased by O(1)during typhoons due to SDP and can deepen by more than 5 m.In addition,the continuous effects of SDP on SST,current,and MLD at the after-typhoon stage indi-cate a hysteretic response between SDP and typhoon actions.
      原文链接:
    • NETL
    • NSTL
    • 万方数据
    • 维普

    Overview on Mangrove Forest Disaster Prevention and Mitigation Functions

    CHEN XinpingYIN ZiqiLI ZibinWANG Bin...
    46-56页
    查看更多>>摘要：This paper provides a comprehensive overview on coastal protection and hazard mitigation by mangroves.Previous stud-ies have made great strides to understand the mechanisms and influencing factors of mangroves'protection function,including wave energy dissipation,storm surge damping,tsunami mitigation,adjustment to sea level rise and wind speed reduction,which are sys-tematically summarized in this study.Moreover,the study analyzes the extensive physical models,based on indoor flume experi-ments and numerical models,that consider the interaction between mangroves and hydrodynamics,to help our understanding of mangrove-hydrodynamic interactions.Additionally,quantitative approaches for valuing coastal protection services provided by man-groves,including index-based and process-resolving approaches,are introduced in detail.Finally,we point out the limitations of previous studies,indicating that efforts are still required for obtaining more long-term field observations during extreme weather events,to create more real mangrove models for physical experiments,and to develop numerical models that consider the flexible properties of mangroves to better predict wave propagation in mangroves having complex morphology and structures.
      原文链接:
    • NETL
    • NSTL
    • 万方数据
    • 维普

    Joint Probability Analysis and Prediction of Sea Ice Conditions in Liaodong Bay

    LIAO ZhenkunDONG ShengTAO ShanshanHUA Yunfei...
    57-68页
    查看更多>>摘要：Sea ice conditions in Liaodong Bay of China are often described by sea ice grades,which classify annual sea ice conditions based on the annual maximum sea ice thickness(AM-SIT)and annual maximum floating ice extent(AM-FIE).The joint probability distribution of AM-SIT and AM-FIE was established on the basis of their data pairs from 1949/1950 to 2019/2020 in Liaodong Bay.The joint intensity index of the sea ice condition in the current year is calculated,and the joint classification criteria of the sea ice grades in past years are established on the basis of the joint intensity index series.A comparison of the joint criteria with the 1973 and 2022 criteria revealed that the joint criteria of the sea ice grade match well,and the joint intensity index can be used to quantify the sea ice condition over the years.A time series analysis of the sea ice grades and the joint intensity index sequences based on the joint criteria are then performed.Results show a decreasing trend of the sea ice condition from 1949/1950 to 2019/2020,a mutation in 1990/1991,and a period of approximately 91 years of the sea ice condition.In addition,the Gray-Markov model(GMM)is applied to predict the joint sea ice grade and the joint intensity index of the sea ice condition series in future years,and the error between the results and the actual sea ice condition in 2020/2021 is small.
      原文链接:
    • NETL
    • NSTL
    • 万方数据
    • 维普

    Comparisons of Wave Force Model Effects on the Structural Responses and Fatigue Loads of a Semi-Submersible Floating Wind Turbine

    HAN YanqingLE ConghuanZHANG PuyangXU Shengnan...
    69-79页
    查看更多>>摘要：The selection of wave force models will significantly impact the structural responses of floating wind turbines.In this study,comparisons of wave force model effects on the structural responses and fatigue loads of a semi-submersible floating wind turbine(SFWT)were conducted.Simulations were performed by employing the Morison equation(ME)with linear or second-order wave kinematics and potential flow theory(PFT)with first-or second-order wave forces.A comparison of regular waves,irregular waves,and coupled wind/waves analyses with the experimental data showed that many of the simulation results and experimental data are relatively consistent.However,notable discrepancies are found in the response amplitude operators for platform heave,tower base bending moment,and tension in mooring lines.PFT models give more satisfactory results of heave but more significant discrepan-cies in tower base bending moment than the ME models.In irregular wave analyses,low-frequency resonances were captured by PFT models with second-order difference-frequency terms,and high-frequency resonances were captured by the ME models or PFT models with second-order sum-frequency terms.These force models capture the response frequencies but do not reasonably predict the response amplitudes.The coupled wind/waves analyses showed more satisfactory results than the wave-only analyses.However,an important detail to note is that this satisfactory result is based on the overprediction of wind-induced responses.
      原文链接:
    • NETL
    • NSTL
    • 万方数据
    • 维普

    Evolution of Diagenetic Fluid of the Dawsonite-Bearing Sandstone in the Jiyang Depression,Eastern China

    LI FulaiMA WenkuanZHANG ChunWANG Kaining...
    80-98页
    查看更多>>摘要：Based on the petrology,isotope geochemistry and fluid inclusions analysis,we established the evolutionary mode of the diagenetic fluid of dawsonite-bearing sandstone in the Jiyang Depression.Dawsonite-bearing sandstone is characterized by double injection of CO2 and oil-gas in the Jiyang Depression that have experienced a relatively complex diagenetic fluid evolution process.The diagenetic sequence of secondary minerals involves secondary enlargement of quartz,kaolinite,first-stage calcite,dawsonite,second-stage calcite,ferrocalcite,dolomite and ankerite.Hydrocarbon charging in the dawsonite-bearing sandstone occurred at around 2.6-0 Myr.The CO2 charging event occurred during Dongying tectonism,forming the Pingfangwang CO2 gas reservoir,which provided an abundant carbon source for dawsonite precipitation.Carbon and oxygen isotopic compositions of dawsonite demonstrate that CO2 forming the dawsonite was of an inorganic origin derived from the mantle,and that water mediating the proc-ess during dawsonite precipitation was sequestered brine with a fluid temperature of 82℃.The evolutionary sequence of the diagenetic fluid in the dawsonite-bearing sandstone was:alkaline syngenetic fluids,weak alkaline fluids during organic acid forma-tion,acidic fluids in the early stage of CO2 injection,alkaline fluids in the late stage of CO2 injection,and weak alkaline fluids during oil and gas charging.The mode indicates an increase in HCO3-because of the CO2 injection,and the loss of Ca2+ and Mg2+ due to the precipitation of carbonate minerals.Therefore,the evolutionary mode of diagenetic fluids is in good agreement with high HCO3-,low Ca2+ and low Mg2+ composition of the present formation water in the dawsonite-bearing sandstone.
      原文链接:
    • NETL
    • NSTL
    • 万方数据
    • 维普

    Using Natural Radionuclides to Trace Sources of Suspended Particles in the Lower Reaches of the Yellow River

    ZHANG HanBURNETT C.WilliamZHANG XiaojieZHAO Shibin...
    99-108页
    查看更多>>摘要：Natural radionuclides are powerful tools for understanding the sources and fate of suspended particulate matter(SPM).Particulate matter with different particle sizes behaves differently with respect to adsorption and desorption.We analyzed the activi-ties and distribution characteristics of multiple natural radionuclides(238U,226Ra,40K,228Ra,7Be and 210Pbex)on size-fractionated SPM at the Lijin Hydrographic Station(Huanghe or Yellow River)every month over a one-year period.Results showed that medium silt(16-32 µm)was the main component.As expected,the activity of each radionuclide decreased with an increase of particle size.We examined the sources of SPM with different particle sizes using activity ratios of 226Ra/238U,228Ra/226Ra,40K/238U and 7Be/210Pbex,and concluded that SPM with different particle sizes originated from different sources.Our results indicate that fine SPM(<32 µm)was mainly from the erosion of soil along the lower reaches of the Yellow River,while coarse SPM(>32 µm)was mainly derived from resuspension of riverbed sediment.During high runoff periods,the concentration of SPM increased significantly,and the pro-portion of fine particles originating upstream increased.Naturally occurring radioactive isotopes,especially on size-fractionated par-ticles,are therefore seen as useful tracers to understand the sources and behaviors of riverine particles transported from land to sea.
      原文链接:
    • NETL
    • NSTL
    • 万方数据
    • 维普

    Eutrophication of Jiangsu Coastal Water and Its Role in the Formation of Green Tide

    XIAO MingyanSONG WeinaZHANG HaiboSHI Xiaoyong...
    109-118页
    查看更多>>摘要：Since 2007,the large-scale green tide caused by Ulva prolifera(U.prolifera)have occurred as a recurrent phenomenon in the southern Yellow Sea of China.Field surveys and satellite remote sensing showed that the small scattered patches of green tide algae were first observed along the Porphyra agriculture area of the Subei Shoal in late April.In this study,we attempted to identify the role of eutrophication in the origin of the green tide in the Subei Shoal and its adjacent area.Subei Shoal and its adjacent area are characterized by rich nutrients,especially NO3--N,NH4+-N,PO43--P,and other bioavailable components(such as urea-N and amino acids).In the spring of 2017,the average concentrations of NO3--N were 19.01±11.01 μmol L-1,accounting for 86.68%of the dis-solved inorganic nitrogen(DIN).In addition,the average concentration of NH4+-N was 2.51±1.60 μmol L-1.PO43--P had an average concentration of 0.14±0.13 μmol L-1.The average concentrations of urea-N and total hydrolyzed amino acids(THAA)were 1.73±1.36 μmol L-1 and 1.33±0.80 μmol L-1,respectively.Rich nutritive substances play a key role in the rapid production of U.prolifera and make the Jiangsu coastal water an incubator for green tide.
      原文链接:
    • NETL
    • NSTL
    • 万方数据
    • 维普