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Acta Oceanologica Sinica 2001年第1期20卷 153-170页

作者： Zhu Shouxian, Dang Pingxing, Shi Fengyan, Zhu Jianrong ( State Key Laboratory of Estuarine and Coastal research, East China Normal University, Shanghai 200062, China Meteorology Institute of the PLA Science and Engineering University, Nanjing 211101, Ch State Key Lab. Estuarine Coast. Res. East China Normal University Shanghai 200062 China Meteorology Institute PLA Sci. and Engineering University Nanjing 211101 China

Some observational characteristics of residual current and mass transport in the Hangzhou Bay and the Changjiang Estuary in winter are analyzed. The residual current and its impact on mass transport are simulated with a 3 - D joint model for the Hangzhou Bay and the Changjiang Estuary, in which the impacts of river flux, wind, baroclinic pressure gradient (BPG), background current in the East China Sea and tide (including M2, S2, K1 and O1) are taken into account. Based on there studies, further simulations are made to analyze the dynamical mechanisms of the observational characteristics.

关键词： The Hangzhou Bay the Changjing Estuary residual current mass transport numerical study winter

Vertical structure and seasonal variation of tidal and residual currents in the northern Huanghai Sea

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Acta Oceanologica Sinica 2011年第5期30卷 14-22页

作者： SONG Jun GUO Junru QIAO Lulu MU Lin YAO Zhigang LIU Yang LI Huan BAO Xianwen SUN Xiaoyan GAO Jia National Marine Data and Information Service State Oceanic Administration Tianjin 300171 China College of Physical and Environmental Oceanography Ocean University of China Qingdao 266100 China Key Laboratory of Seafloor Science and Exploration Technology Ocean University of China Qingdao 266100 China National Marine Environmental Forecasting Center State Oceanic Administration Beijing 100081 China

Analysis of tidal current and sea level has been made based on the observations from the summer of 2006 to the winter of 2007,*** result indicates that a two-layer structure of residual current exists in summer,with its upper layer going northwestward and the lower layer *** addition,some strong residuals exist in the neighboring depth of the pycnocline during the current period of astronomical *** winter,except some individual layersthe residual currents mostly direct to the northwest,from which we can see the fluctuation of abnormal sea-level and the appearance of associated current because of the changes of the wind *** analysis of tidal ellipse indicates that the direction of the maximum semidiurnal component is clockwise from summer to winter,with an angle of ***,in summer the semidiurnal component rotates with depth clockwise while the diurnal component ***,the vertical structure is almost homogeneous in winter.

关键词： northern Huanghai Sea residual current tidal wave low-pass filtering

Observed water current and transport through Qiongzhou Strait during August 2010

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Chinese Journal of Oceanology and Limnology 2014年第3期32卷 703-708页

作者：王庆业王湘文谢玲玲尚庆通吕艳 Key Laboratory of Ocean Circulation and Waves Institute of OceanologyChinese Academy of Science College of Ocean and Meteorology Guangdong Ocean University

The velocity structure of the residual current across an entire section of the Qiongzhou Strait(QS) in summer is presented for the fi rst time. Shipboard Acoustic Doppler current Profi le measurements, from the mid-region of the QS(110.18°E), were collected on 1–4 August 2010. The diurnal tidal currents had their maximum amplitudes between 4.24 and 20.24 m. Their amplitude along the major axis ranged from approximately 0.55 m/s in the middle part of the strait(20.15°N) to 0.84 m/s in the north part of the strait(20.20°N). Both anticlockwise and clockwise tidal current rotations exist in the QS. During the observation period(neap tide), a signifi cant westward residual current occupied almost the entire study section. Two velocity cores of westward current were observed at the northern part and near the deepest trough, although an eastward current appeared in the middle part of the transect. The deepest core was located near 62 m at 20.13°N, with a maximum velocity of-0.34 m/s. The shallower core was located at approximately 16 m at 20.20°N, with a maximum velocity of-0.33 m/s. The estimated total volume of water transported through the QS was-0.16 Sv. This value is an important boundary condition, applicable to numerical models studying coastal ocean circulation in the northwestern South China Sea.

关键词： tidal current residual current transport volume Qiongzhou Strait (QS)

current observations in the southern Yellow Sea in summer

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Chinese Journal of Oceanology and Limnology 2004年第3期22卷 217-223页

作者：唐晓晖王凡陈永利白虹胡敦欣 Institute of Oceanology Chinese Academy of Sciences Qingdao 266071 China Graduate School of the Chinese Academy of Sciences Beijing 100039 China Institute of Oceanology Chinese Academy of Sciences Qingdao 266071 China

current data from three moored Acoustic Doppler Profilers (ADPs) deployed in the southern Yellow Sea at sites A (1-24.17°E, 34.82°N), B (122.82°E, 35.65°N) in summer 2001 and site C (120.85°E, 34.99°N) in summer 2003 were analyzed in this paper. Features of the tidal and residual currents were studied with rotary spectral and cross-spectral methods. Main achievements were as follows: 1) Tides dominated the currents. At sites A and B, the semidiurnal tidal current was basically homogeneous in the whole depth, taking a clockwise rotation at site A, and near-rectilinear counterclockwise rotation at site B; while the diurnal tidal current was strong and clockwise near the surface, but decreased and turned counterclockwise with depth; at site C, semidiurnal tidal current dominated and diurnal current took the second, both of which were counterclockwise and vertically homogeneous. Inertial motion contributed to the clockwise component of diurnal fluctuations; 2) The 3-5d fluctuation of residual current was found at site C and attributed to the response of current to meridional wind, with a lag time of approximately 1.8d; 3) Mean residual flows at sites A and B in 2001 probably suggested an anticyclonic inner circulation in the middle of the southern Yellow Sea in summer.

关键词： current observation the southern Yellow Sea Acoustic Doppler Profiler spectral analysis tidal current residual current

Characteristics of Water and Sediment Exchange Between Yangtze Estuary and Hangzhou Bay

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China Ocean Engineering 2007年第2期21卷 255-266页

作者：孔俊宋志尧夏云峰章卫胜 State Key Laboratory of Hydrology-Water Resources and Hydraulic Engineering College of OceanHohai University Nanjing Hydraulic Research Institute

Based on the 2-D flow and sediment numerical model of the Yangtze Estuary and the Hangzhou Bay, the characteristics of water and sediment exchange in their joint waters is studied through quantitative calculation and analysis of the characteristics of water flow and sediment transportation. The results show that there is periodical water and sediment exchange in this joint waters, that the net water exchange appears mainly between 0 - 6 m depth （theoretical datum plane, the same below） offshore and the maximum is near the depth of 2 m, and that the net sediment exchange mainly appears between 0 - 5 m depth and the maximum is near the depth of 3 m, indicating that the range of water flow passage is different from that of sediment transport from the Yangtze Estuary to the Hangzhou Bay. Combined with the results of numerical simulation, this paper also analyzes the hydrodynamical mechanism influencing water and sediment exchange between the Yangtze Estuary and the Hangzhou Bay, including tidal fluctuation, tidal current kinetic energy, tide-induced residual current and the trace of water particles. Finally, the sediment transportation passage on the Nanhui tidal fiat is discussed, and the results show that sediment is transported into the Hangzhou Bay from the south side of Shipilei, while sediment is brought back to the South Channel of the Yangtze Estuary from the north side.

关键词： tidal fluctuation residual current tidal flow kinetic energy tidal ctu'rent flux sediment transport flux

Surface currents measured by GPS drifters in Daya Bay and along the eastern Guangdong coast

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Frontiers of Earth Science 2020年第2期14卷 376-383页

作者： Yang GAO Yongxiang HUANG Hongyang LIN Zhenyu SUN Jia ZHU Jianyu HU State Key Laboratory of Marine Environmental Science College of Ocean and Earth SciencesXiamen UniversityXiamen 361102China Southern Marine Science and Engineering Guangdong Laboratory(Zhuhai) Zhuhai 519000China

GPS-based surface drifters were used to investigate the surface currents in Daya Bay and along the eastern Guangdong coast in *** current vectors were measured based on the GPS location and corresponding time information sent by drifters through the mobile phone *** analysis of data from 120 drifters,deployed in late spring 2018 in the case-study region,shows that the drifters are generally capable of capturing the surface(tidal and residual)*** drifter trajectories suggest an anticlockwise surface current inside Daya Bay and a north-eastward current along the eastern Guangdong coast,where the coastal current along the eastern Guangdong coast is faster than that inside Daya *** surface currents in the investigated region follow an irregular semidiurnal cycle due to the influence of the tidal current,while the currents inside Daya Bay are strongly affected by the *** to the harmonic analysis,an irregular semidiurnal type of tidal current is evident at a study grid inside Daya Bay,with an Eulerian residual current speed of 9.0 cm/s and a direction of 276°.The Lagrangian residual current outside Daya Bay moves north-eastward with a mean speed of 22 cm/s along the eastern Guangdong coast,while the current inside Daya Bay moves northward to the bay head with a mean speed of about 8.0 cm/s,which agrees well with the one reported in other literatures.

关键词： drifter surface current residual current Daya Bay eastern Guangdong coast

Single-phase-to-ground Fault Detection with Distributed Parameters Analysis in Non-direct Grounded Systems

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CSEE Journal of Power and Energy Systems 2019年第1期5卷 139-147页

作者： Baowen Liu Hongzhong Ma Honghua Xu Ping Ju College of Energy and Electrical Engineering Hohai UniversityNanjing 211100China State Grid Jiangsu Electric Power Company Nanjing Power Supply Company Nanjing 210008China

The fast and accurate detection of the single-phaseto-ground fault is of great significance for the reliability and safety of the power *** this paper,novel algorithms for distribution network protection were proposed with distributed parameters analysis in non-direct grounded *** first,novel generating mechanisms of zero-sequence voltage and residual current were *** the compositions of residue parameters,including residual current and residual admittances,were decomposed in *** that,an improved algorithm for a fault resistance calculation of a single phase-to-earth fault was also proposed,and the algorithm is much more convenient as it only needs to measure the variation of the zero-sequence voltage and does not need the prerequisites of the faulty feeder ***,the fault feeder can also be selected by an improved calculation algorithm of zero-sequence admittance of the faulty feeder,which cannot be affected by the asymmetry of the *** analysis and the MATALB/Simulink simulation results demonstrate the effectiveness of the proposed algorithms.

关键词： Fault resistance calculation fault feeder selection non-direct grounded system residual parameters residual current zero-sequence voltage

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福建省沿岸港湾余流的特征

厦门大学学报(自然科学版) 1987年第4期 438-442页

作者：傅子琅胡建宇厦门大学海洋学系

对1980—1986年的福建省5个港湾79个测站的海流观测资料进行分析,得出福建省沿岸港湾的余流具有以下几个值得注意的特征:(1)港湾口门处的表层余流和底层余流流向大致相反;(2)在“口小腹大”的港湾中,表层余流存在着余流环流,而底层余流... 详细信息

对1980—1986年的福建省5个港湾79个测站的海流观测资料进行分析,得出福建省沿岸港湾的余流具有以下几个值得注意的特征:(1)港湾口门处的表层余流和底层余流流向大致相反;(2)在“口小腹大”的港湾中,表层余流存在着余流环流,而底层余流环流则随着水深的不同而具有不同的特点;(3)河口区的底层余流可形成辐合区,而表层余流则一致流出河口.

关键词： residual current Circulation Bay Entrance Estuary region