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| 1 | Dynamics of saltwater intrusion in the Modaomen Waterway of the Pearl River Estuary显示文摘Observations indicate an abnormal characteristic of saltwater intrusion in the upper Modaomen Waterway of the Pearl River Estuary,i.e.,the maximum salinity occurs during the neap tide or the coming moderate tide instead of during the spring tide.To explore the associated dynamic mechanisms,a high resolution three-dimensional numerical model was set up based on the Finite Volume Coastal Ocean Model(FVCOM),which covered the entire river network,the Pearl River Estuary,and the adjacent sea.Numerical experiments illustrated that the upper Modaomen Waterway is significantly influenced by the saltwater intrusion from the Hongwan Waterway,a narrow and shallow channel connecting the Modaomen Waterway to the sea.Specific topography,spring-neap tidal variation,local wind stress,and their interaction drive an up-estuary residual current in the Hongwan Waterway,which is much stronger during the neap tide than during the spring tide.As a result,more saltwater in the Hongwan Waterway is spilled over into the Modaomen Waterway during the neap tide or the coming moderate tide.This is the inherent dynamic mechanism why the saltwater intrusion in the upper Modaomen Waterway reaches its maximum during the neap tide or the coming moderate tide.Besides,we also found that the winter prevailing wind can pronouncedly enhance the saltwater intrusion in the Modaomen Waterway. | WANG Biao ZHU JianRong WU Hui YU FuJiang SONG XueJia | 2012 | Science China Earth Sciences2012，55，11： | 12 |
| 2 | Implementation and application of a nested numerical storm surge forecast model in the East China Sea显示文摘A nested numerical storm surge forecast model for the East China Sea is developed. A one-way relaxing nest method is used to exchange the information between coarse grid and fine grid. In the inner boundary of the fine grid model a transition area is set up to relax the forecast variables. This ensures that the forecast variables of the coarse model may transit to those of fine grid gradually, which enhances the model stability. By using this model, a number of hindcasts and forecast are performed for six severe storm surges caused by tropical cyclones in the East China Sea. The results show good agreement with the observations. | Yu Fujiang(于福江) Zhang Zhanhai(张占海) | 2002 | Acta Oceanologica Sinica2002，21，1： | 8 |
| 3 | Evaluation of potential hazards from teletsunami in China:Tidal observations of a teletsunami generated by the Chile 8.8 M_w earthquake显示文摘At 14:34 Beijing time on February 27,2010,an earthquake of M w 8.8 rocked the central coast of Chile.A teletsunami was triggered by the huge earthquake and then propagated across the entire Pacific in less than 24 h.The initial tsunami wave arrived at the southeast coast of China at 16:20 on February 28 and was recorded in real time by a number of tidal gauges off China's Mainland and Taiwan Province.The teletsunami waves have never been recorded with such a broad geographical scope in China before this event.The aim of the present work is to report the first description of sea-level oscillations generated by the Chile tsunami,and evaluate the potential hazards that teletsunami poses to the coast of China.The results reveal that the east coast of Taiwan Province,Zhejiang Province and the north coast of Fujian Province are vulnerable to transoceanic tsunami.In addition,spectral and wavelet analysis of the recorded sea-level oscillations shows that 'seiches' are easily excited by the resonance resulting from the interaction between the initial tsunami waves and local geometry (such as semi-enclosed bays and ports).The superimposition of the two oscillations would amplify the wave height further. | YU FuJiang YUAN Ye ZHAO LianDa WANG PeiTao | 2011 | Chinese Science Bulletin2011，56，11： | 8 |
| 4 | Record-Setting Ocean Warmth Continued in 2019显示文摘Human-emitted greenhouse gases(GHGs)have resulted in a long-term and unequivocal warming of the planet(IPCC,2019).More than 90%of the excess heat is stored within the world's oceans,where it accumulates and causes increases in ocean temperature(Rhein et al.,2013;Abram et al.,2019). | Lijing CHENG John ABRAHAM Jiang ZHU Kevin ETRENBERTH John FASULLO Tim BOYER Ricardo LOCARNINI Bin ZHANG Fujiang YU Liying WAN Xingrong CHEN Xiangzhou SONG Yulong LIU Michael EMANN | 2020 | Advances in Atmospheric Sciences2020，37，2： | 7 |
| 5 | Upper Ocean Temperatures Hit Record High in 2020显示文摘The long-term warming of the ocean is a critical indicator of both the past and present state of the climate system. It also provides insights about the changes to come, owing to the persistence of both decadal variations and secular trends,which the ocean records extremely well(Hansen et al., 2011;IPCC, 2013;Rhein et al., 2013;Trenberth et al., 2016;Abram et al., 2019). | Lijing CHENG John ABRAHAM Kevin ETRENBERTH John FASULLO Tim BOYER Ricardo LOCARNINI Bin ZHANG Fujiang YU Liying WAN Xingrong CHEN Xiangzhou SONG Yulong LIU Michael EMANN Franco RESEGHETTI Simona SIMONCELLI Viktor GOURETSKI Gengxin CHEN Alexey MISHONOV Jim REAGAN Jiang ZHU | 2021 | Advances in Atmospheric Sciences2021，38，4： | 2 |
| 6 | 2018 Continues Record Global Ocean Warming显示文摘The increasing heat-trapping gases emitted by human activities into the atmosphere produce an energy imbalance between incoming solar radiation and outgoing longwave radiation that leads to global heating(Rhein et al.,2013;Trenberth et al.,2014;von Schuckmann et al.,2016).The vast majority of global warming heat ends up deposited in the world’s oceans,and ocean heat content(OHC)change is one of the best—if not the best—metric for climate change(Cheng et al.,2019).In 2018,continued record heat was measured in the Earth’s climate system.In fact,2018 has set a new record of ocean heating,surpassing 2017,which was the previous warmest year ever recorded(Cheng et al.,2018)(Fig.1). | Lijing CHENG Jiang ZHU John ABRAHAM Kevin E.TRENBERTH John T.FASULLO Bin ZHANG Fujiang YU Liying WAN Xingrong CHEN Xiangzhou SONG | 2019 | Advances in Atmospheric Sciences2019，36，3： | 2 |
| 7 | Another Record: Ocean Warming Continues through 2021 despite La Nina Conditions显示文摘The increased concentration of greenhouse gases in the atmosphere from human activities traps heat within the climate system and increases ocean heat content(OHC). Here, we provide the first analysis of recent OHC changes through 2021 from two international groups. The world ocean, in 2021, was the hottest ever recorded by humans, and the 2021 annual OHC value is even higher than last year’s record value by 14 ± 11 ZJ(1 zetta J = 1021 J) using the IAP/CAS dataset and by16 ± 10 ZJ using NCEI/NOAA dataset. The long-term ocean warming is larger in the Atlantic and Southern Oceans than in other regions and is mainly attributed, via climate model simulations, to an increase in anthropogenic greenhouse gas concentrations. The year-to-year variation of OHC is primarily tied to the El Nino-Southern Oscillation(ENSO). In the seven maritime domains of the Indian, Tropical Atlantic, North Atlantic, Northwest Pacific, North Pacific, Southern oceans,and the Mediterranean Sea, robust warming is observed but with distinct inter-annual to decadal variability. Four out of seven domains showed record-high heat content in 2021. The anomalous global and regional ocean warming established in this study should be incorporated into climate risk assessments, adaptation, and mitigation. | Lijing CHENG John ABRAHAM Kevin ETRENBERTH John FASULLO Tim BOYER Michael EMANN Jiang ZHU Fan WANG Ricardo LOCARNINI Yuanlong LI Bin ZHANG Zhetao TAN Fujiang YU Liying WAN Xingrong CHEN Xiangzhou SONG Yulong LIU Franco RESEGHETTI Simona SIMONCELLI Viktor GOURETSKI Gengxin CHEN Alexey MISHONOV Jim REAGAN | 2022 | Advances in Atmospheric Sciences2022，39，3： | 1 |
| 8 | Research and application of numerical models of typhoon surge in China Seas显示文摘 | Wang Xinian Yu Fujiang Yin Qingjiang | 1997 | MAUSAM1997，48，4： | 1 |
| 9 | Typhoon storm surge ensemble forecast based on GPU technique显示文摘The accuracy of typhoon forecasts plays an important role in the prediction of storm surges.The uncertainty of a typhoon’s intensity and track means it is necessary to use an ensemble model to predict typhoon storm surges.A hydrodynamic model,which is operational at the National Marine Environmental Forecasting Center,is applied to conduct surge simulations for South China coastal areas using the best track data with parametric wind and pressure models.The results agree well with tidal gauge observations.To improve the calculation efficiency,the hydrodynamic model is modified using CUDA Fortran.The calculation results are almost the same as those from the original model,but the calculation time is reduced by more than 99%.A total of 150 typhoon cases are generated by combining 50 typhoon tracks from the European Centre for Medium-Range Weather Forecasts with three possible typhoon intensity forecasts.The surge ensembles are computed by the improved hydrodynamic model.Based on the simulated storm surges for the different typhoon cases,ensemble and probability forecast products can be provided.The mean ensemble results and probability forecast products are shown to agree well with the observed storm surge caused by Typhoon Mangkhut.The improved model is highly suitable for ensemble numerical forecasts,providing better forecast products for decision-making,and can be easily implemented to run on regular workstations. | Qiuxing Liu Jinrong Jiang Fujiang Yu Changkuan Zhang Jianxi Dong Xiaojiang Song Yuzhu Wang | 2020 | Acta Oceanologica Sinica2020，39，5： | 1 |
| 10 | The role of tsunami buoy played in tsunami warning and its application in South China Sea显示文摘The tsunami was a sudden marine disasters.Tsunami waves can quickly spread to near-shore and cause the disaster after the tsunami.So it is very important of timely monitoring and early warning of the tsunami.After several unsuccessful tsunami forecasting,the United States developed tsunami buoy specifically for the early detection of tsunami waves.Tsunami buoy can not only be able to display occurrence of the tsunami,it is real time data but also be assimilated into the tsunami warning system,to improve the accuracy of the tsunami forecasting.Several tsunami events in the recent few years have proven the important role of the tsunami buoys.Subsequently,the tsunami warning system based on tsunami buoys was into regular operation.The system accurately predicted the results on March 11,2011 Japan tsunami event.State Oceanic Administration(SOA),China also deployed 2 tsunami buoys in the South China Sea(SCS),which also played an important role in the warning process of Japan tsunami on March 11,2011.National Marine Environmental Forecasting Center/State Oceanic Administration(NMEFC/SOA) will collaborate with Pacific Marine Environmental Laboratory/National Oceanic and Atmospheric Administration(PMEL/NOAA) to develop assimilation method making use of real time data of tsunami buoy and build a forecasting system in SCS in the future. | Lianda Zhao Fujiang Yu Jingming Hou Peitao Wang Tingting Fan | 2013 | Theoretical & Applied Mechanics Letters2013，3，3： | 1 |
| 11 | On the design of high-speed energy-efficient successive-approximation logic for asynchronous SAR ADCs显示文摘This paper analyzes the power consumption and delay mechanisms of the successive-approximation(SA) logic of a typical asynchronous SAR ADC,and provides strategies to reduce both of them.Following these strategies,a unique direct-pass SA logic is proposed based on a full-swing once-triggered DFF and a self-locking tri-state gate.The unnecessary internal switching power of a typical TSPC DFF,which is commonly used in the SA logic,is avoided.The delay of the ready detector as well as the sequencer is removed from the critical path.A prototype SAR ADC based on the proposed SA logic is fabricated in 130 nm CMOS.It achieves a peak SNDR of 56.3 dB at 1.2 V supply and 65 MS/s sampling rate,and has a total power consumption of 555 μW,while the digital part consumes only 203 μW. | Jiaqi Yang Ting Li Mingyuan Yu Shuangshuang Zhang Fujiang Lin Lin He | 2017 | Journal of Semiconductors2017，38，8： | 0 |
| 12 | Observations and modelling of the travel time delay and leading negative phase of the 16 September 2015 Illapel,Chile tsunami显示文摘The systematic discrepancies in both tsunami arrival time and leading negative phase(LNP)were identified for the recent transoceanic tsunami on 16 September 2015 in Illapel,Chile by examining the wave characteristics from the tsunami records at 21 Deep-ocean Assessment and Reporting of Tsunami(DART)sites and 29 coastal tide gauge stations.The results revealed systematic travel time delay of as much as 22 min(approximately 1.7%of the total travel time)relative to the simulated long waves from the 2015 Chilean tsunami.The delay discrepancy was found to increase with travel time.It was difficult to identify the LNP from the near-shore observation system due to the strong background noise,but the initial negative phase feature became more obvious as the tsunami propagated away from the source area in the deep ocean.We determined that the LNP for the Chilean tsunami had an average duration of 33 min,which was close to the dominant period of the tsunami source.Most of the amplitude ratios to the first elevation phase were approximately 40%,with the largest equivalent to the first positive phase amplitude.We performed numerical analyses by applying the corrected long wave model,which accounted for the effects of seawater density stratification due to compressibility,self-attraction and loading(SAL)of the earth,and wave dispersion compared with observed tsunami waveforms.We attempted to accurately calculate the arrival time and LNP,and to understand how much of a role the physical mechanism played in the discrepancies for the moderate transoceanic tsunami event.The mainly focus of the study is to quantitatively evaluate the contribution of each secondary physical effect to the systematic discrepancies using the corrected shallow water model.Taking all of these effects into consideration,our results demonstrated good agreement between the observed and simulated waveforms.We can conclude that the corrected shallow water model can reduce the tsunami propagation speed and reproduce the LNP,which is observed for tsunamis that have propagated over long distances frequently.The travel time delay between the observed and corrected simulated waveforms is reduced to<8 min and the amplitude discrepancy between them was also markedly diminished.The incorporated effects amounted to approximately 78%of the travel time delay correction,with seawater density stratification,SAL,and Boussinesq dispersion contributing approximately 39%,21%,and 18%,respectively.The simulated results showed that the elastic loading and Boussinesq dispersion not only affected travel time but also changed the simulated waveforms for this event.In contrast,the seawater stratification only reduced the tsunami speed,whereas the earth’s elasticity loading was responsible for LNP due to the depression of the seafloor surrounding additional tsunami loading at far-field stations.This study revealed that the traditional shallow water model has inherent defects in estimating tsunami arrival,and the leading negative phase of a tsunami is a typical recognizable feature of a moderately strong transoceanic tsunami.These results also support previous theory and can help to explain the observed discrepancies. | Peitao Wang Zhiyuan Ren Lining Sun Jingming Hou Zongchen Wang Ye Yuan Fujiang Yu | 2021 | Acta Oceanologica Sinica2021，40，11： | 0 |
| 13 | A typhoon-induced storm surge numerical model with GPU acceleration based on an unstructured spherical centroidal Voronoi tessellation grid显示文摘Storm surge is often the marine disaster that poses the greatest threat to life and property in coastal areas.Accurate and timely issuance of storm surge warnings to take appropriate countermeasures is an important means to reduce storm surge-related losses.Storm surge numerical models are important for storm surge forecasting.To further improve the performance of the storm surge forecast models,we developed a numerical storm surge forecast model based on an unstructured spherical centroidal Voronoi tessellation(SCVT)grid.The model is based on shallow water equations in vector-invariant form,and is discretized by Arakawa C grid.The SCVT grid can not only better describe the coastline information but also avoid rigid transitions,and it has a better global consistency by generating high-resolution grids in the key areas through transition refinement.In addition,the simulation speed of the model is accelerated by using the openACC-based GPU acceleration technology to meet the timeliness requirements of operational ensemble forecast.It only takes 37 s to simulate a day in the coastal waters of China.The newly developed storm surge model was applied to simulate typhoon-induced storm surges in the coastal waters of China.The hindcast experiments on the selected representative typhoon-induced storm surge processes indicate that the model can reasonably simulate the distribution characteristics of storm surges.The simulated maximum storm surges and their occurrence times are consistent with the observed data at the representative tide gauge stations,and the mean absolute errors are 3.5 cm and 0.6 h respectively,showing high accuracy and application prospects. | Yuanyong Gao Fujiang Yu Cifu Fu Jianxi Dong Qiuxing Liu | 2024 | Acta Oceanologica Sinica2024，43，3： | 0 |
| 14 | An efficient algorithm for generating a spherical multiple-cell grid显示文摘This paper presents an efficient algorithm for generating a spherical multiple-cell(SMC)grid.The algorithm adopts a recursive loop structure and provides two refinement methods:(1)an arbitrary area refinement method and(2)a nearshore refinement method.Numerical experiments are carried out,and the results show that compared with the existing grid generation algorithm,this algorithm is more flexible and operable. | Fang Hou Zhiyi Gao Jianguo Li Fujiang Yu | 2022 | Acta Oceanologica Sinica2022，41，5： | 0 |
| 15 | Another Year of Record Heat for the Oceans显示文摘Changes in ocean heat content(OHC), salinity, and stratification provide critical indicators for changes in Earth’s energy and water cycles. These cycles have been profoundly altered due to the emission of greenhouse gasses and other anthropogenic substances by human activities, driving pervasive changes in Earth’s climate system. In 2022, the world’s oceans, as given by OHC, were again the hottest in the historical record and exceeded the previous 2021 record maximum.According to IAP/CAS data, the 0–2000 m OHC in 2022 exceeded that of 2021 by 10.9 ± 8.3 ZJ(1 Zetta Joules = 1021Joules);and according to NCEI/NOAA data, by 9.1 ± 8.7 ZJ. Among seven regions, four basins(the North Pacific, North Atlantic, the Mediterranean Sea, and southern oceans) recorded their highest OHC since the 1950s. The salinity-contrast index, a quantification of the “salty gets saltier–fresh gets fresher” pattern, also reached its highest level on record in 2022,implying continued amplification of the global hydrological cycle. Regional OHC and salinity changes in 2022 were dominated by a strong La Ni?a event. Global upper-ocean stratification continued its increasing trend and was among the top seven in 2022. | Lijing CHENG John ABRAHAM Kevin ETRENBERTH John FASULLO Tim BOYER Michael EMANN Jiang ZHU Fan WANG Ricardo LOCARNINI Yuanlong LI Bin ZHANG Fujiang YU Liying WAN Xingrong CHEN Licheng Feng Xiangzhou SONG Yulong LIU Franco RESEGHETTI Simona SIMONCELLI Viktor GOURETSKI Gengxin CHEN Alexey MISHONOV Jim REAGAN Guancheng LI | 2023 | Advances in Atmospheric Sciences2023，40，6： | 0 |
| 16 | Clinical outcomes of primary rotating-hinge knee arthroplasty for knees with severe deformity显示文摘Rotating-hinge total knee prostheses are often used for the treatment of global instability or severe bone loss around the knee,which is often accompanied by severe deformity.1 Competent and functional collateral ligaments are a prerequisite for performance of conventional total knee arthroplasty (TKA).In cases of primary surgery for knees with severe deformities or in revision surgery for knees with substantial bone loss,standard condylar implants do not allow for proper stabilization of the joint.Under these circumstances,condylar TKA designs will fail within a short period of time,or other complications such as anterior knee pain will occur soon after surgery. | Zhang Fujiang Liu Yabin Xiao Yu Liu Wenbin | 2014 | Chinese Medical Journal2014，，9： | 0 |
| 17 | On the Planning of Chinese Marine High-tech Industry Demonstration Zones:From the Perspective of Supply-side Structural Reform显示文摘China’s national agricultural high-tech industry demonstration zones focus on supply-side structural reform in their overall plan of development.This paper selected the China’s marine industry as its research subject and analyzes its current situation and major problems.After summarizing the current researches of China’s marine industry parks,from the perspective of supply-side structural reform,this paper specifies the tasks and objectives of the construction of the marine hi-tech industry demonstration zones.The overall planning of the demonstration zones must set distinctive developmen as its orientation,and we should emphasize innovation-driven and green development,devise a functional zoning that embraces marine-land and allround integration,and seek mechanism innovations that could invigorate the inner drive of development.The paper also puts forward the major principles that the planning of marine hi-tech industry demonstration zones should obey in the context of supply-side structural reform. | Zhang Jian Sui Yanhui Yu Hai Liu Fujiang Xu Qingtong(译) | 2019 | Contemporary Social Sciences2019，4，1： | 0 |
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