Calculation Method of River Width of Mountainous Watershed Based on Watershed Morphology by LI Qian

“…The calculation of river floods in mountainous and hilly areas is crucial for mountain flood prevention and forecasting.However,how to calculate accurately the river width in the mountainous and hilly areas has become a key issue in the calculation of mountain floods.This paper takes the modified river development coefficient K_w which reflects the watershed morphology as a selection indicator for the best generalized formula for river width,and proposes a river width calculation method based on watershed area and river development coefficient by analyzing the measured section data of the rivers of 6 mountainous watersheds in 2 provinces.After being verified in Beizhangdian Watershed in Shanxi Province and Qingshuizhan Watershed in Hunan Province,the results indicate that the accuracy of this calculation method for river width is better,which can provide the calculation support for mountain flood forecast.…”
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Changes in streamflow seasonality associated with hydroclimatic variability in the north-central United States among three discrete temporal periods, 1946–2020 by Nancy A. Barth, Harper N. Wavra, Anthony R. Koebele, Steven K. Sando

“…New hydrologic insights for the region: In the 50-year trend period, five regions share common mean flood timing in the AMS and POT partial duration series. …”
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Study on Spatiotemporal Distribution Characteristics of Rainfall Erosivity in “Three-Lake” Basin of Central Yunnan by YANG Wenchun, GU Guihua, ZHU Weibing, HUO Shouhua

“…This study is conducted to explore the influence of rainfall on the characteristics of soil erosion in the “three-lake” basin of Fuxian Lake,Xingyun Lake,and Qilu Lake in central Yunnan.On the basis of the daily rainfall observation data of four precipitation stations in the basin from 1992 to 2020,namely,the Liangwanghe,Haikou,Chaershan,and Shagouzui Stations,the daily rainfall erosivity model is employed to calculate rainfall erosivity.Then,its temporal variation characteristics are analyzed with the M-K method,and the spatial changing laws of rainfall and rainfall erosivity are investigated by the Kriging interpolation method for spatial interpolation.The results are as follows:From 1992 to 2020,the average annual rainfall in the “three-lake” basin is 907.6 mm,and the average annual rainfall erosivity is 3 088~4 172 MJ·mm/(hm²·h);the variation coefficient of annual rainfall erosivity is between 0.25 and 0.32,and the number of days with erosive rainfall at each station is 686~759.There is a good correlation between annual rainfall and annual rainfall erosivity,and the annual rainfall erosivity in the basin fluctuates on the whole,with no significant increasing trend and no abrupt change.The rainfall erosivity varies significantly within the year,with that in summer accounting for 61.4% and that in the flood season accounting for 90.5% of the year,and the variation of rainfall erosivity is topped by summer,followed by autumn,spring,and winter.The spatial distribution trend of average annual rainfall erosivity in the basin is consistent with the annual rainfall distribution trend,high in the north and low in the south.The rainfall erosivity decreases gradually from north to south in terms of years,flood seasons,summer,and autumn,while in terms of non-flood seasons,spring,and winter,rainfall erosivity decreases from northeast to southwest.The research results can provide a scientific basis for water and soil conservation and ecological protection of lakes in the basin of plateau lakes in central Yunnan.…”
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Resilience, coping strategies, and disaster experience: a path analysis of preparedness and avoidance in Taiwan by Yi-Ling Wu, Tsai-Wen Lin, Jason Lam, Samuel S. C. Wang, Herman H. M. Lo

“…Additionally, flood experience negatively moderated the relationship between negative emotion regulation and both preparedness (β = − 0.18, p = .035) and denial/avoidance (β = − 0.23, p = .030), suggesting that individuals with higher emotional regulation were less likely to prepare or deny disaster risks after flood exposure. …”
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URBAN GREEN INFRASTRUCTURE FOR CLIMATE RESILIENCE: A REVIEW by Fahmyddin Araaf Tauhid

“…Key words: Green Infrastructure, Climate Resilience, Urban Resilience, Sustainability, Flood, Drought,Sea level Rise. …”
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Marine survey unmanned surface vessel:platform design and application by Weiping WANG, Xi HE, Chao DONG, Bing ZHENG, Xue LI

“…Marine survey unmanned surface vessel (USV) has a wide range of applications.However, the attitude of USV is easily affected by wind, waves, currents and floating debris, which may cause structural damage or low precision observation.Double hull and wide deck platform of unmanned surface vessed was designed, and the transducer of multi-beam echo sounder was installed on the lifting mechanism.These designs improved the sailing attitude of the platform, the safety of the transducer and the accuracy of the observed data.In 2020, this USV was participated in the dike-inspection mission of Jiangxi’s emergency flood relief.It successfully inspected the sediment environment of 14 km dike, affected by the unfavorable working conditions like rapid water flow, turbid water and floating garbage.Four risks were located, which provided important data support for the anti-flood campaign.…”
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Study on scour simulation and boundary condition conversion technology for a shallow foundation bridge by Gangping Fan, Huanzhe Li, Tianzhuo Wang, Jian Che, Xing Li, Chunyang Dou, Tong Wu

“…Abstract Bridges with shallow foundations are highly susceptible to flood scouring due to their limited embedment depth and small contact area between the soil and foundation. …”
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Senses of justice after managed retreat in New York city by Veronica Olivotto, Veronica Olivotto, Katinka Wijsman, Timon McPhearson, Timon McPhearson, Timon McPhearson

“…This study analyzes ongoing and intersectional conditi ons of residents’ flood vulnerability. It grounds this analysis in 18 in-depth interviews with local residents capturing their perceptions of vacant land and its reuse, flood risk and neighborhood needs. …”
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A parametric study of polymer-enhanced CO2 injection in a light-oil reservoir using full-physics simulation by Rapheephan Laochamroonvorapongse, Falan Srisuriyachai, Jirawat Chewaroungroaj

“…For a reservoir with a 10° dip angle, CO2 injection from the updip location creates a stable flood front, yielding high oil recovery. The sensitivity analysis reveals that polymer properties such as concentration and permeability reduction factor must be high enough to stabilize the displacement flood front, but not so high as to hinder injectivity. …”
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Drought Prediction Model of Pearl River Basin Based on SST and Machine Learning by FENG Xin, LIU Yanju, TONG Hongfu, QIAN Shuni

“…The results are as follows. ① The model can effectively forecast the temporal and spatial evolution of drought, and as the forecast period becomes longer, the forecast accuracy decreases accordingly. ② The accuracy of drought forecast is higher in non-flood season than in flood season, and the coastal area has a better forecast effect than the inland area. ③ The occurrence of droughts in the Pearl River Basin may be related to typical climate fluctuations, such as the El Niño Southern Oscillation and the North Atlantic Oscillation.…”
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Web plug-in paradigm for anti-DoS attack based on end hopping by Le-yi SHI, Hui SUN, Yu-wen CUI, Hong-bin GUO, Jian-lan LI

“…The end hopping technology is a proactive network defense technology proposed to mitigate the network attack.By changing the IP address,port and other information in the communication pseudo-randomly to achieve the purpose of confusing the attacker.The plug-in mechanism based on the end hopping technology was introduced,and it was applied to the field of Web protection.This plug-in was designed to confuse and interfere with attackers.The plug-in model was divided into two working modes,which are non-end-hopping mode and end hopping mode.The plug-in according to the instructions of the UDP spokesman to switch its own work mode and when the communication link is safe and reliable,it choose the fist mode which can reduce the cost of services.Another,when the network is attacked,the plug-in switches to the end hopping mode to ensure the safety of communications.The experimental results show that the plug-in mechanism based on end hopping has high service and security performance under SYN Flood attack and UDP Flood attack.…”
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Study on the Effect of Spur Dike Arrangement in Tidal Estuary on River Bed Scouring by WANG Renchao, ZHANG Gongjin, HU Caixia, LIU Rui, WU Dongdong

“…Under the maximum flood velocity, the exchangecoefficient decreases gradually with the increase of spur dike spacing in linear relationship. …”
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IDENTIFICATION DE RÉGIONS HOMOGÈNES DU POINT DE VUE HYDROLOGIQUE. ÉTUDE DE CAS: LA RÉGION DE LA COURBURE DE L’ARC CARPATIQUE by LILIANA ZAHARIA

“…The identification of homogeneous regions of the hydrological point of view constitutes a preliminary stage for certain methods of hydrological regionalization used in the practice (for example the method of the “index flood”) to estimate a hydrological variable of interest. …”
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Analysis on Drought Characteristics in the Hunhe River Basin Based on SRI by SUN Junkai

“…The results show that: since 1975, the aridification of the Hunhe River Basin has presented a weakening trend, and the drought and flood process has showed a good periodicity, with an average of one drought and flood process every 14~16 years. …”
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How does the water flow? And does data follow it? by Henrik Dissing

“… Climate adaptation and effective flood management require accurate and accessible data on water levels and water flow. …”
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Suscetibilidade a eventos de inundação como subsídio ao planejamento urbano - O estudo da cidade do Crato/Ceará/Brasil by Edmundo Rodrigues de Brito, Frederico de Holanda Bastos

“…Through the concept of susceptibility and its applicability in urban planning, the present work proposes a modeling of susceptibility to flood events for the main rivers of the city of Crato/Ceará/Brazil (rivers Granjeiro, Batateiras, Saco do Lobo and Constantino), in due to recurring local problems associated with flood events. …”
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Analysis on Changes in Water Level-Flow of the Pearl River Basin in Recent Years and Its Causes by TANG Jiaqi, DUAN Kai, HAO Lu

“…Aiming at the impact of climate change and rapid urbanization on the hydrological situation in the Pearl River Basin in recent years,this paper analyzes the evolution trend and variation characteristics of the water level,flow and water level-flow of 16 major hydrological stations in the Pearl River Basin from 1997 to 2013,and discusses the causes of the evolution of water level and flow in each sub-basin based on the meteorological,hydraulic engineering,and water and sediment data in the historical period.The results show that:①The average annual flow of most stations in the Pearl River Basin didn't change significantly,but the Jiangbianjie,Chongwei and Liuzhou stations in the Xijiang River Basin showed a significant reduction trend;②The flow of most stations in the flood season decreased,while that in the dry season increased.The different precipitation during the dry/flood season was the important factors leading to the change of flow in the Pearl River Basin;③The water level of most stations in the Xijiang River Basin showed a significant upward trend,which was caused by the aggravating water and soil loss.While under the influence of reservoir operation and sand mining activities,the Beijiang River Basin and the lower reaches of the Dongjiang River Basin showed a trend of riverbed down-cutting and water level lowering.…”
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Establishment of Big Data Index System of Water Resources Scheduling in Pearl River Basin by JIANG Liangyong, LI Jiqing, CHEN Siyu

“…Therefore, it is urgent toconstruct a set of big data index system for water resources scheduling in Pearl River Basin.Under the guidance of binary water cycle theory, and based on analytic hierarchy process andinformation resource planning method, this paper determines the six goals, i.e. flood control,power generation, water supply, saltwater resistance, shipping and ecological security in PearlRiver Basin, and fuses the measured data such as hydrometeorology, stage-discharge, water qualityand water ecology during water resources scheduling in the Pearl River Basin under the conditionof the Internet of Things and auxiliary information such as humanity and economy, ecologicalenvironment, flood disaster and Internet, classifies all indexes of the pressure term, state termand response term, and establishes the big data index system of water resources scheduling inPearl River Basin based on “Pressure-State-Response (PSR)”model, which provides a decision basisfor water resources management and scheduling in Pearl River Basin.…”
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Application of MPS and FEM based Fluid-Structure Interaction Model to a Sequential Dam-Break Problem on Çoruh River by Abdullah Demir, Ali Ersin Dinçer

“…Problems such as dam-breaking, flood effect on structure, slushing effect and tsunami are the problems consisting of a fluid structure interaction in civil engineering. …”
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Study Karaj River And Currents torrential It And its role in groundwater shahriar Plain by Parviz kardavani, Farideh Asadian, mohammad reza Fallah

“…In this study, we have tried By examining the characteristics of Karaj River and its flood flows, parameters infiltration GIS examined, For this purpose, The different factors affecting this environment GIS to prepare maps of each factor was prepared. …”
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