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  1. 861

    Research on Parameter Sensitivity of Reasoning Formula Based on Error Principle by ZHOU Bin

    Published 2020-01-01
    “…The reasoning formula for calculating rainstorm and flood is widely used in China, andthe error of its original parameters will lead to the calculation error of surface runoff peakvalue. …”
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  2. 862

    Analysis and Recheck of Reinforcement Scheme of Dikes in a Polder by WU Juan, ZHANG Ming, LI Yansong

    Published 2022-01-01
    “…The dike reinforcement project in a polder has a total length of 8 873 m.There are some local problems along the dikes,such as the insufficient crest elevation,thin dikes,insufficient stability of dike slopes,leakage of dikes,and damaged pavement on the crest,which affect the flood control safety of dikes and cannot meet the normal operation requirements.Therefore,on the basis of analyzing the present situation and problems,targeted research on dike reinforcement design is carried out,and the design principles of dike reinforcement are put forward.Moreover,we implement the design contents,including the recheck of crest elevation,reinforcement design of dike sections,anti-sliding stability recheck of dike slopes,anti-seepage and reinforcement design of dikes,and effect evaluation.The reinforcement design scheme fully considers the actual local situation,which meets the overall flood control requirements of the river basin and is compatible with the local existing flood control projects for operation.The proposed dike reinforcement design scheme has certain universality and can be used as a reference for dike reinforcement in plain areas.…”
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  3. 863

    Avaliação dos fatores que influenciam na percepção de risco de inundação: uma revisão sistemática de pesquisas empíricas by Murilo Noli da Fonseca, Carlos Mello Garcias, Luciene Pimentel da Silva

    Published 2023-03-01
    “…Knowing the main factors that influence the degree of flood risk perception of the various actors of an urban system is fundamental to enable behavioral changes and the development of more effective measures to reduce risk and preparedness in the face of the occurrence of a flood. …”
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  4. 864

    Annual Characteristics of Runoff and Sediment in West River and North River Delta and Their Influencing Factors by ZHANG Yonghua, LU Yongqiu

    Published 2023-01-01
    “…The analysis of annual characteristics of runoff and sediment based on the monthly measured hydrological data of Makou Station and Sanshui Station in the West River and North River delta over the past 50 years.It shows that the monthly runoff,sediment discharge,and sediment concentration of Makou Station and Sanshui Station are obviously of the “unimodal type”,with runoff and sediment concentrated in June and July during the flood season.The annual concentration ratio of runoff and sediment in the West River and North River delta is high with a decreasing trend,while the concentration period is concentrated in early July with a slight delay.The interannual variation trend of runoff and sediment in the West River and North River delta is mainly controlled by the variation of flood season and is affected to some extent by the regulation of the non-flood period.There is a consistent interannual trend of runoff with precipitation,but the annual concentration ratio is more affected by hydraulic engineering.Sand excavation in river channels affects the distribution of runoff and sediment by changing the diversion ratio of runoff and sediment.…”
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  5. 865

    Layout of Release Works and Design of Revetment of Lagdo Hydropower Station by WANG Yi-zhui

    Published 2001-01-01
    “…Situated on the left bank, the headrace channel is a structure for diversion, flood disposal, power generation and irrigation. …”
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  6. 866

    Simulation and Analysis of Multi-sluice Dam Channel Flow Evolution Based on MIKE11 by ZHANG Shixin, ZHANG Jing

    Published 2022-01-01
    “…Due to the influence of sluices,the flow propagation law of multi-sluice dam is complicated,which brings great difficulties to the forecast of river flow and water dispatching.In this paper,the river channel of Qipanshan Reservoir and Tuanjie Sluice of Puhe River is taken as the research object,and the river is divided into seven sections.On the basis of the MIKE11HD construction,the influence of multi-sluice dams on river flow evolution is analyzed,and the change of peak discharge travel time and flow attenuation in different sections is studied by the model.The results show that there is a significant power function relationship between the flood peak discharge and the travel time.As the flood peak discharge is larger,the travel time will be shorter.The attenuation rate per kilometer is related to the characteristics of the channel and the vegetation on both sides of the channel.Under the influence of artificial channelization,the discharge attenuation rate per kilometer is minimum in the sluice 7-sluice 6 section,and maximum in the section of the rubber dam on the sluice to Laoshiniu rubber dam.This study can provide a basis for the joint operation of multi-sluice dam in the ecological corridor of Puhe River,and also provide a reference for the flow simulation and flood forecast of other multi- sluice dam channels.…”
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  7. 867

    Risk Assessment of Urban Water-Logging Disaster Based on Weight-improved AHP Method-Taking Haojiang District of Shantou City as an Example by ZHOU Jiaqi, LIN Kairong, XIE Xue, CHEN Haiyan, GAO Xin

    Published 2021-01-01
    “…Under the background of global climate change,the frequency of extreme rainfall events increases,and the urban water-logging disaster occurs frequently.The risk assessment of water-logging disaster can effectively reduce the loss.Taking Haojiang District of Shantou City as case study,this paper improves the weights of the analytic hierarchy process (AHP) by neural network,expands the traditional nine-point scaling,and constructs the water-logging disaster risk evaluation model.The results show that the water-logging disaster risk in Haojiang District is generally high in the south-central region and low in the northwest region.Especially,Yuxin Street,Binhai Street,Majiao Street and Dahao Street have higher risk values,which need to take preventive measures.After verification of evaluation results with historical data,it is shown that about 80% of historical flood disaster points are distributed in high-risk areas,which is consistent with the verification results of historical disaster points.The weight determination method of AHP is improved by neural network,the intermediate variables of the traditional nine-point method is expanded to three decimal places,and the weight is determined by the computer to reduce subjectivity to a certain extent.The results of risk assessment can provide technical support for flood warning and flood control scheduling within a certain time limit.…”
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  8. 868

    The effect of rainfall centroid position on lead time in the upstream Citarum River by Ode Asri Aristi Ayuningsi, Rohmat Faizal Immaddudin Wira, Kardhana Hadi

    Published 2025-01-01
    “…Flood early warning systems (FEWS) are essential for flood risk, particularly in flood prone areas such as Majalaya and Sapan in the Upper Citarum River (UCR). …”
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  9. 869

    Study on the Impact of Future Climate Change on Extreme Meteorological and Hydrological Elements in the Upper Reaches of the Minjiang River by Ting Chen, Yao Ye, Kebi Yang, Xu Zhang, Tianqi Ao

    Published 2023-01-01
    “…However, spatial distribution of flood in the upper reaches is different, and thus flood risk in the upstream source area will still tend to increase. …”
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  10. 870

    Mapeamento de vulnerabilidade socioespacial: Análise espacial integrada entre vulnerabilidade social e suscetibilidade a inundações em bacia hidrográfica urbanizada de São Paulo/SP... by Iury Tadashi Hirota Simas, Cleide Rodrigues

    Published 2020-05-01
    “…The city of Sao Paulo, Brazil, has a historical problem related to flood risk. To properly address this issue, there is a demand for methodological proposals that allow an integrative assessment of the different related variables. …”
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  11. 871

    Uncertainty Assessment: Reservoir Inflow Forecasting with Ensemble Precipitation Forecasts and HEC-HMS by Sheng-Chi Yang, Tsun-Hua Yang

    Published 2014-01-01
    “…During an extreme event, having accurate inflow forecasting with enough lead time helps reservoir operators decrease the impact of floods downstream. Furthermore, being able to efficiently operate reservoirs could help maximize flood protection while saving water for drier times of the year. …”
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  12. 872

    Study of Nitrogen and Phosphorus Inflow Fluxes into Qingliangshan Reservoir Base on SWAT Model by ZHANG Di

    Published 2022-01-01
    “…Taking the Qingliangshan Reservoir Watershed as the research object,this study builds a soil and water assessment tool (SWAT) model to calculate reservoir inflow and nitrogen and phosphorus fluxes by simulation and thereby explore the spatio-temporal distribution characteristics and potential spatial sources of nitrogen and phosphorus.The following observations can be made from the results.The multi-year average inflow into the Qingliangshan Reservoir is 2.77 m<sup>3</sup>/s, and the total nitrogen (TN) and total phosphorus (TP) inflow fluxes into the reservoir are 33 030.3 kg/a and 2 282.0 kg/a, respectively.The TN and TP inflow fluxes of the Xintian tributary (TN:19 882.7 kg/a;TP:1 275.4 kg/a) into the reservoir are higher than those of the Xitian tributary (TN:12 977.5 kg/a,TP:956.9 kg/a).The nitrogen and phosphorus inflow fluxes in the flood season are also higher than those in the non-flood season,with peak concentrations of TN and TP in the water both observed before the flood season.Large TN and TP loads are mainly distributed in the central area of the watershed. …”
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  13. 873

    Numerical Simulation of Tide and Tidal Current in Mangrove Creek by LI Yichun, LIU Shitong

    Published 2021-01-01
    “…Mangrove coast is one of the typical coasts in low latitude area.Mangrove is widely distributed in southern coastal cites of China,which is of great significance for tide resistance,shoal reinforcement,environmental protection and ecological security.However,mangrove hydrodynamics develops slowly in estuarine and coastal research.This paper establishes a two-dimensional hydrodynamic numerical model based on high-resolution scheme and ‘slot method’ to simulate and study the hydrodynamic characteristics of small-scale mangrove creek,and builds a simplified theoretical model based on water conservation to explore the relationship between maximum velocity and tide level.The results show that:The tidal current asymmetry in the creek is mainly affected by the incident tidal wave,and the topography in the creek cannot cause the alternation of asymmetric nature of tidal current;The mangrove is favorable for the flow structure in the creek to maintain the tidal flat and gather the materials;Mangrove has significant impact on the decrease of the longitudinal velocity on the tidal flat,but little effect on the transverse velocity;The density of natural mangrove has little effect on the velocity,and the increase of width of the deep channel promotes the flood-dominated tidal velocity;The tide level at maximum velocity is related to the depth-width ratio of the deep channel,the slope of the tidal flat and the scale of the deep channel,and affected by the flood-ebb time-asymmetry;The influence by tidal flat slope mainly comes from the change of tidal prism in the creek.The flood tide process is mainly controlled by the incident tidal wave at the entrance,while the ebb tide process is mainly affected by the volume of tidal prism in the creek.…”
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  14. 874

    O Divino, o patrimônio e a cidade: uma análise de modulações culturais provocadas por eventos críticos by José Rogério Lopes, André Luiz da Silva, Rodrigo Manoel Dias da Silva

    Published 2011-01-01
    “…The article examines cultural modulations in a devotional celebration in the city of São Luiz do Paraitinga (SP), Brazil, impacted by a critical event (flood) that hit the town in January 2010. The flood brought down part of the cultural heritage of the town, which was related to the achievement of the traditional Feast of the Saint Ghost. …”
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  15. 875

    Study on Precipitation Change in Nanchang and Its Correlation with Global Climate Index by WU Bin, LIU Weilin, WAN Yifan, LIU Lina, ZHU Shengnan, HUANG Yipeng

    Published 2020-01-01
    “…The results show that: The annualprecipitation and the precipitation in the flood season are on the fluctuant rise;It is unsurethat whether there is an abrupt change on annual precipitation and precipitation in the floodseason; The annual precipitation and the precipitation in the flood season have an oscillatingperiod of 28 a, and there is a significant linear relationship between annual precipitation andAntarctic oscillation index.…”
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  16. 876

    Orthogonal Experimental Design Method Based on Influencing Factor Analysis of Moisture Content in Metro Vehicle Air Compressor Outlet Pressure Air by LI Jianxing, LI Huaizhi

    Published 2025-01-01
    “…When the Shanghai Rail Transit Operation and Maintenance personnel inspected some vehicles on the flood season, they find that there is liquid water in the vehicle air supply pipeline, which is caused by the excessively high water content in the pressure air. …”
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  17. 877

    Runoff Prediction and Uncertainty Analysis for Xijiang River Basin Based on CMIP6 Climate Scenarios by WU Huiming, YAN Meng, ZHOU Shuai

    Published 2025-01-01
    “…Due to the combined effects of global climate change and strong human activities, extreme floods have become frequent and widespread, with significant changes in runoff sequences. …”
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  18. 878

    DCWM-LSTM: A Novel Attack Detection Framework for Robotic Arms by Esra Nergis Yolacan, Hande Cavsi Zaim

    Published 2025-01-01
    “…Replay and subscriber flood attacks pose significant challenges to the integrity and security of robotic arms. …”
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  19. 879

    Le quartier périurbain de la Bouillie (Blois) by Grégory Morisseau

    Published 2012-01-01
    “…Since 2004, on demand of the State, the community of towns in the neighbourhood of Blois (France) started an operation of disurbanization to shield the inhabitants in the overflow called La Bouillie from the risk of flood, and to restore the initial function of protection of the town. …”
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  20. 880

    Analysis on the Variation Characteristics of Monthly Rainfall in Guangdong Province by XU Linchun, HUANG Dong, LIN Meilan

    Published 2020-01-01
    “…The results indicate that: The monthly rainfall in coastal areas isgreater than inland areas during flood season, but the distribution of the maximum value of monthlyaverage rainfall over the years is not obvious.The data for inland areas is more stable than thatfor coastal area, and the peak value is not obvious in the year;There are obvious differencesin the spatial distribution of rainfall in different month; The rainfall intensity increases inflood season and decreases in non-flood season; The concentration degree of rainfall in the yearincreases, and the rainfall in the coastal areas of Guangdong Province is more concentrated thanthat in the inland areas.…”
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