Dissertations / Theses on the topic 'Urban flood modeling'
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Lant, Jeremiah. "A Hydraulic Modeling Framework for Producting Urban Flood Maps for Zanesville, Ohio." The Ohio State University, 2011. http://rave.ohiolink.edu/etdc/view?acc_num=osu1306933258.
Full textLiu, Yuling. "Multi-Agent Based Modeling and Simulation of Flood Evacuation Decision-Making Considering Dynamics of Urban Life." 京都大学 (Kyoto University), 2010. http://hdl.handle.net/2433/120843.
Full textGrimley, Lauren Elise. "Urban and rural flood forecasting: a case study of a small town in Iowa." Thesis, University of Iowa, 2018. https://ir.uiowa.edu/etd/6118.
Full textStanley, Christopher. "Flood Visualization for Urban Planning : An exploratory spatiotemporal visualization of storm water runoff in 2D and 3D." Thesis, Högskolan i Gävle, Avdelningen för Industriell utveckling, IT och Samhällsbyggnad, 2016. http://urn.kb.se/resolve?urn=urn:nbn:se:hig:diva-21822.
Full textHenrich, Michael. "The influence of temporal rainfall distribution and storm movement on flood depth in urban pluvial cloud burst modeling." Thesis, KTH, Hållbar utveckling, miljövetenskap och teknik, 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-265572.
Full textPluviala översvämningar är den typen, som är både svårast att reda ut och samtidigt den minst utforskade fenomenen inom urban hydrologi. Medan ansträngningar görs för att förbättra kunskapsläget, ligger den största svårigheten i nederbördens skepnad. Det är konvektiva regn som utgör de flesta av de starkare korttids regntillfällen i urbana områden och är också regntypen som förväntas att öka mest i framtiden. Regncellerna har en tydligare avgränsning, en större intensitet, mindre utsträckning, och en kortare livscykel än frontala regn. I kombination med den låga tillgängligheten av regnmätarnätverk med hög täthet i positioneringen av mätare, samt den låga tidsupplösningen av mätningar i intervaller av 15 minuter gör att konvektiva regn fortfarande är svåra att analysera och ännu svårare att förutse. Upplösningen av molnradar bilder av 2x2 km som tas varje 15:de minut är för grova och algoritmer för felreducering av bilder från radarbaserad nederbördsdata (HIPRAD) för analys av regn mönster är inte tillräckligt noggranna, för sig, för att kunna analysera egenskaperna av sådana regnfält och de processerna som karakteriserar dessa. Den spatiala variationen inom regnceller, deras utveckling och förfall, avståndet mellan dem samt riktningen och hastigheten kan ändå undersökas med hjälp av kombinationen av regnmätarnätverk och radar bilder för att uppnå mer realistiska korttids nederbördsscenarier för användning i hydrauliska model. Studier, som har undersökt regn i rörelse har varit fokuserade på två huvudområden: Betydelsen av riktningen, i vilken regnet rör sig, där den största effekten som denna riktningsbias kan uppnå, har döpts resonans effekt och i samband med ytreducering (areal reduction) av punkt nederbörd. De flesta av dessa studier har genomförts med hjälp av statistiska metoder och laboratorieexperiment. I denna studie skapades en hydraulisk modell baserad på en realistisk terräng av ett existerade urbant område, en yta på 28 km i Falun, för att testa den nyligen utvärderade informationen om temporala intensitets fördelningen som representerar det svenska klimatet. Regndatat producerades och tillhandahölls av SMHI och representerar en mätserie från regnmätare över en period av 20 år. Som referens modellerades även ett Chicago regn (CDS). Med hjälp av en MIKE21 hydraulisk modell, simulerades ett stationärt scenario och fyra rörelseriktningar för varje empirisk hyetograf. Resultaten visade att de empiriska regntyperna skapade översvämningar med 20-50% lägre vattendjup än CDS regnet. Att modellera rörelsen resulterade i 4-20% lägre vattennivåer jämfört med respektive stationär scenario. I några enstaka tillfällen, i en av evalueringspunkterna, skapade de rörliga scenarierna större resultat, med lite över 1% i det största fallet. Det drogs slutsatsen att konceptet av areal reduction genom molnrörelse verkar vara korrekt och skulle kunna hjälpa att förbättra sättet att modellera regn generellt, men också specifikt för skyfalls scenarier med korta varaktigheter över urbana avrinningsområden. Man kom ytterligare till slutsatsen att framtida studier i samband med de fysiska processerna i regnceller skulle kunna användas för att höja noggrannheten av ytreducering av nederbörd för mer realistiska hydrauliska modeller, som i sin tur kunde minska överdesign.
Jin, Jing. "INTEGRATING GIS AND HYDROLOGIC MODELING FOR LAND USE BASED FLOOD SIMULATION - A CASE STUDY OF MILL CREEK WATERSHED, SOUTHWEST OHIO." University of Cincinnati / OhioLINK, 2001. http://rave.ohiolink.edu/etdc/view?acc_num=ucin987521513.
Full textBoldrin, Rodrigo Süzes. "Avaliação de cenários de inundações urbanas a partir de medidas não-estruturais de controle: trecho da bacia do córrego do Gregório, São Carlos - SP." Universidade de São Paulo, 2005. http://www.teses.usp.br/teses/disponiveis/18/18138/tde-09032016-164031/.
Full textThe flooding processes in urban basins have become worse due to many reasons. All of them associated with the disorganized occupancy of the urban area land. The efficiency of flood mitigation measures can be analyzed by mathematical modeling. This study aims to be used as a tool for urban planning and it analyses the influence of the urbanization processes on surface runoff, using simulation of several urbanization scenarios. The case study was undertaken at the Gregório River Basin in São Carlos - SP. The main information considered was topography, hydrology, urban land use, urbanization, protected land and sub-basins. The software used was IPHS-1 which is a lumped hydrologic model. In this research many urbanization scenarios are proposed and simulated. These views are based in many nonstructural flood mitigation alternatives such as land cover conservation, use and occupancy of the land, in order to check their efficiency in reducing the total volume of surface runoff and the peak flow.
Pontremolez, Nataska Schincariol. "Estudo das inundações em cenários alternativos de uso e ocupação do solo na bacia hidrográfica do Córrego do Mineirinho em São Carlos, SP." Universidade de São Paulo, 2013. http://www.teses.usp.br/teses/disponiveis/18/18138/tde-27082014-110840/.
Full textIn Brazil, the urbanization process started in the 1950s occurred without proper planning, and resulted in negative impacts on the hydrologic systems, such as increased frequency of flooding and peak flow volumes. The changes in runoff associated with human occupation of floodplains result in floods with huge losses. In the absence of a more global view of the processes occurring in the watersheds, often the problems of urban flooding are countered with works that aim to expel the water as quickly as possible. Such solutions end up transferring the problem to regions downstream of the watershed, and stimulate the occupation of floodplains. In 1945, Gilbert F. White analyzed the material and non-material damage caused by floods in the United States and concluded that whenever possible, human occupation must adapt to floods. From that idea, in 1969 was created the Urban Drainage and Flood Control District (UDFCD), with the goal of helping local governments in Denver metropolitan area, USA, in reducing the risk of flooding. This work aimed to study the floods generated by rainfall of different return periods under alternative scenarios for the land use and occupation of the watershed of stream Mineirinho, in Sao Carlos, SP. A particular scenario of land use and occupation was developed under the principles and guidelines of UDFCD for flood control. Hydraulic-hydrological modeling was performed to construct hydrographs and flood maps for the watershed, enabling a comparison between the alternative scenarios. The results demonstrated that the Master Plan of Sao Carlos does not consider flood control, and if the region is developed according to their guidelines, the flow rate and flood areas will be increase, in comparison to the current situation of land use and occupation. If the detention reservoir provided for Master Plan for Urban Drainage is built, flow rates will decrease drastically, reducing the impact on the watersheds downstream. However, the flood will reach residential areas, causing problems for the population. If the region is developed according to the principles and guidelines of UDFCD for flood control, the outflow will decrease compared to the current situation, and the flooded areas will not reach the population.
Rubinato, Matteo. "Physical scale modelling of urban flood systems." Thesis, University of Sheffield, 2015. http://etheses.whiterose.ac.uk/9270/.
Full textEvans, Barry. "A multilayered approach to two-dimensional urban flood modelling." Thesis, University of Exeter, 2010. http://hdl.handle.net/10036/117891.
Full textSchück, Fredrik. "Implementation of Citizens’ Observations in Urban Pluvial Flood Modelling." Thesis, KTH, Hållbar utveckling, miljövetenskap och teknik, 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-297552.
Full textKonsekvenserna av översvämningar från skyfall i städer, så kallade pluviala översvämningar, förväntas öka på grund av urbanisering och klimatförändringar. Det är för att fler påverkas av översvämningar i tätbyggda städer samt att skyfall förväntas öka, både i intensitet och frekvens. Med hjälp av skyfallsmodeller kan dock förståelsen för hur extrema regn översvämmar städer öka. Med denna kunskap kan åtgärder för att minimera konsekvenserna implementeras, såsom blågrön infrastruktur. Däremot finns det en brist av observationsdata från pluviala översvämningar och vilket medför att dessa modeller ytterst sällan kalibreras. Kalibrering är viktig för att säkerställa tillförlitliga modeller. För att öka möjligheten att kalibrera dessa modeller undersöktes hur observationer från medborgare kan implementeras. Dessa observationer är en relativ oprövad metod men har blivit alltmer tillgängliga tack vare allt bättre mobiltelefonkameror och utvecklingen av sociala medier, vilket gör det enkelt för medborgare att dokumentera och ladda upp sina observationer till allmänheten. Syftet med denna studie är därför att öka förståelsen för hur bilder från medborgare kan användas för att möjliggöra kalibreringen av översvämningsmodeller. En fallstudie över ett skyfall i Malmö 2014 används för att utvärdera denna metod. Under detta skyfall regnade det mer än 100 mm vilket orsakade skador för cirka 600 miljoner kronor. Totalt samlades 297 bilder som föreställde översvämningen som orsakades av skyfallet. Bilderna samlades ifrån sociala media, tidningsbildarkiv och genom att fråga medborgare efter bilder. Vattennivåerna uppskattades i 66 bilder och de användes sedan för att kalibrera en 2D- skyfallsmodell. Utöver kalibreringen genomfördes en känslighetsanalys av de kalibrerade resultaten genom att jämföra medelfelet för olika subgrupper av bilderna mot medelfelet för alla bilder. Detta gjordes för att studera hur olika egenskaper, såsom när bilden togs och deras ursprung samt bildernas urvalsstorlek och placering påverkar kalibreringsprocessen. Efter att modellen kalibrerats testades också betydelsen av spatial variation i nederbörden genom att jämföra de simulerade vattennivåerna mellan den spatialt varierade historiska regnet och ett syntetiskt CDS-regn som saknar variation. Utifrån det drogs slutsatsen att bilder från medborgare kan användas för att kalibrera en skyfallsmodell, men metoden är tidskrävande. Dock var det tydligt att bilder som direkt efterfrågades från medborgarna minskade arbetsbördan då deras lokalkännedom kunde inkluderas. Kalibreringen var också känslig för observationerna datakvalitet, särskilt när bilderna fotograferades i förhållande till regnet. Även om studien hade begränsningar visar den att det finns stora möjligheter att kalibrera skyfallsmodeller med observationer från medborgare.
Forrest, Simon John. "The Use of High Resolution Precipitation Data in Urban Flood Modelling." Master's thesis, Alma Mater Studiorum - Università di Bologna, 2017.
Find full textEriksson, Johanna. "Sensitivity analysis of pluvial flood modelling tools for dense urban areas : A case study in Lundby-Lindholmen, Gothenburg." Thesis, Luleå tekniska universitet, Institutionen för samhällsbyggnad och naturresurser, 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:ltu:diva-80431.
Full textLeandro, Jorge. "Advanced modelling of flooding in urban areas : integrated 1D/1D and 1D/2D models." Thesis, University of Exeter, 2008. http://hdl.handle.net/10036/41949.
Full textKharat, Deepak Bhimrao. "Practical aspects of integrated 1D2D flood modelling of urban floodplains using LiDAR topography data." Thesis, Heriot-Watt University, 2009. http://hdl.handle.net/10399/2272.
Full textAndersson, Evelina. "Flood modelling in urban areas : A comparative study of MIKE 21 and SCALGO Live." Thesis, KTH, Hållbar utveckling, miljövetenskap och teknik, 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-300466.
Full textMousavi, Moghaddam Seyedali. "Inundation mapping of urban areas in case of severe rainfall events using HEC-RAS." Master's thesis, Alma Mater Studiorum - Università di Bologna, 2021.
Find full textMugume, Seith Ncwanga. "Modelling and resilience-based evaluation of urban drainage and flood management systems for future cities." Thesis, University of Exeter, 2015. http://hdl.handle.net/10871/18870.
Full textLeitao, Joao Paulo Correia. "Enhancement of digital elevation models and overland flow path delineation methods for advanced urban flood modelling." Thesis, Imperial College London, 2009. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.508782.
Full textGreen, Daniel. "Understanding urban rainfall-runoff responses using physical and numerical modelling approaches." Thesis, Loughborough University, 2018. https://dspace.lboro.ac.uk/2134/33530.
Full textBouchenafa, Walid. "Modélisation des inondations en tunnel en cas de crue de la Seine pour le Plan de Protection des Risques Inondations de la RATP (PPRI)." Thesis, Compiègne, 2017. http://www.theses.fr/2017COMP2338/document.
Full textThe 1910 flood of the Seine had a direct impact on the functioning of the different networks (Electricity network, sewerage, transport, water distribution). The RATP network was particularly affected in its functioning. The damage that centennial flood could cause today may be even greater because the current network is more vulnerable because of the numerous electrical and computer equipment that it comprises. The majority of the emergences (The water ingress) of the RATP is located in flood areas. During a major flooding of the Seine, the flows due to the floods propagate directly into the underground and central part of the network (Metro and RER) through these emergences. This thesis is interested in a hydrodynamic simulation by MIKE URBAN, Model used to model the RATP network due to its MOUSE engine developed by DHI for the sewerage networks. This work also presents the results obtained on a physical model of a subway station. The experimental data were used to model water ingress within the RATP network from the subway station. Network protection against infiltration requires a thorough knowledge of underground flow conditions. Infiltrations through the tunnels are estimated numerically. The aim of this research is to improve and validate a simulation model. It is a question of implementing an operational decision support tool which will allow the flood cell of the RATP to understand the functioning of its network in order to improve its flood risk protection plan
Olsson, Jimmy. "The influence of storm movement and temporal variability of rainfall on urban pluvial flooding : 1D-2D modelling with empirical hyetographs and CDS-rain." Thesis, Uppsala universitet, Luft-, vatten och landskapslära, 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-387898.
Full textPluviala översvämningar skapas från ytavrinning vid intensiva nederbördstillfällen. De uppstår ofta i urbana miljöer till följd av den höga andelen hårdgjorda ytor och ledningsnätets begränsade kapacitet. Forskning har visat att ett regnmolns rörelseriktning och hastighet påverkar avrinningsförloppet. Om molnet rör sig längs med flödesriktningen i terrängen kan en ökning i vattenlödet nedströms ett avrinningsområde uppstå. Denna effekt har visat sig vara störst om hastigheten hos regnmolnet och vattenflödet är likvärdiga. Ytterliggare en faktor som påverkar avrinningsförloppet är hur regnintensiteten är fördelad över tid. Olsson et al. (2017) har tagit fram fem empiriska regntyper som speglar tidsfördelning inom ett Svenskt regntillfälle. Inom översvämningsmodellering är det vanligt att använda ett så kallat CDS-regn (Chicago Design Storm), vilken har en given tidsfördelning. Med anledning av detta är det intressant att jämföra översvämningar genererade av ett CDS-regn och av de empiriska regntyperna. Syftet med denna studie var att utreda hur regnmolns rörelse påverkar urbana pluviala översvämningar med avseende på vattendjup, samt att jämföra denna påverkan med effekten från olika tidsfördelningar av regnintensiteter. En kombinerad dagvattenmodell (1D) och markavrinningsmodell (2D) av en mindre svensk tätort användes för att simulera olika regnscenarier. De fem empiriska regntyperna och ett CDS-regn simulerades med en rörelseriktning längs med, emot och vinkelrätt i förhållande till flödesriktningen. Även scenarier med stationära regnmoln simulerades. Maximala översvämningsdjup utvärderades i tio punkter spridda över hela modellområdet. Resultatet från simuleringarna visade att regnmolnets rörelse hade försumbar påverkan på översvämningsdjupen. De olika tidsfördelningarna av regnintensitet hade däremot betydande påverkan på de maximala översvämningsdjupen. Som mest var det det maximala översvämningsdjupet 1.9 gånger större beroende vilken regntyp som användes som indata. CDS-regnet genererade i regel de största översvämningsdjupen, även om utfallet från en av de fem empiriska regntyperna var förhållandevis likvärdigt. Regnintensitetens tidsfördelning var därmed en kritisk parameter vid den hydrauliska modelleringen av urbana pluviala översävmningar, till skillnad från molnrörelse som hade försumbar påverkan.
Felizardo, Lucas Menezes [UNESP]. "Aplicação de Sistema de Informações Geográficas (SIG) para modelagem de eventos críticos de vazão em uma microbacia urbana." Universidade Estadual Paulista (UNESP), 2016. http://hdl.handle.net/11449/144450.
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Com o aumento da população mundial e com sua concentração cada vez maior no meio urbano uma gama de problemas vem se apresentando relacionado a esse aumento populacional de maneira direta ou indireta, esse êxodo das pessoas para os grandes centros urbanos vem alterando o espaço geográfico desse ambiente bem rapidamente, principalmente na região do sudeste brasileiro onde os processos de industrialização são mais evidentes. Com essa migração a ocupação e o uso do solo vêm sendo ocupada nem sempre da forma que os planos diretores das cidades recomendam proporcionando na maioria dos casos impactos negativos nos recursos naturais. As alterações antrópicas realizadas nessas áreas, como desmatamento e a urbanização, estão promovendo um desequilíbrio ao meio ambiente afetando áreas drenadas pelas bacias hidrográficas, a complexidade do ambiente urbano e de sua infraestrutura de drenagem tem uma influência inerente no escoamento superficial, este escoamento gera inundações urbanas, que impõe desafios à modelagem, a simulação destes cenarios exigem dados detalhados de elevação. Os problemas acarretados pela ocupação desordenada da bacia vêm sendo abordados em inúmeros estudos de casos que demonstram que o uso e ocupação do solo de forma inadequada e desordenada, muitas vezes, com obras mal dimensionadas, acarretam grandes prejuízos socioeconômicos. O planejamento integrado de uma bacia urbana é o único meio de viabilizar seus usos, sem que isso acarrete em um maior desequilíbrio do meio físico, e nesse cenário que com os dados de obtidos da bacia do Córrego do Mineirinho foi feito a modelagem de cenários de eventos de precipitação e seus possíveis efeitos no meio físico com compilações e um único software. O córrego do mineirinho e outras bacias da região já vem sendo estudadas por inúmeros pesquisadores seus resultados obtidos com múltiplas ferramentas computacionais se mostram compatíveis com os que obtivemos com o uso de apenas um software para realizar todas as fases do processo desde o pré-processamento de imagens de satélite a produção de modelos em 3D de inundação de eventos de precipitação em inúmeros cenários.
With the increasing world population and its increasing concentration in urban areas a range of issues has been presented related to this population increase directly or indirectly, this exodus of people to large urban centers is changing the geographic space that environment very quickly, especially in the Brazilian southeast region where industrialization processes are most evident. With this migration the occupation and land use have been busy not always the way the master plans of cities recommend providing in most cases negative impacts on natural resources. Anthropogenic changes made in these areas, as deforestation and urbanization, are promoting an imbalance to the environment affecting the watershed drained areas, the complexity of the urban environment and its drainage infrastructure has an inherent influence on runoff, this flow generates floods urban, which poses challenges to modeling. The simulation of these scenarios require detailed elevation data. The problems posed by irregular occupation of the basin have been addressed in numerous studies that demonstrate that the use and occupation of inappropriate and disorderly manner, often with poorly scaled works, present major socioeconomic losses. Integrated planning of an urban basin is the only means of enabling their uses, without incurring a greater imbalance in the physical environment, and in this scenario with data obtained from Mineirinho Stream basin was made scenario modeling precipitation events and their potential effects on the physical environment with a unique compilations and software. The stream Mineirinho and other basins in the region has already been studied by numerous researchers their results with multiple computational tools to show compatible with those obtained using only one software to perform all phases of the process from the pre-processing satellite images to produce 3D models of flood precipitation events in many scenarios.
Felizardo, Lucas Menezes. "Aplicação de Sistema de Informações Geográficas (SIG) para modelagem de eventos críticos de vazão em uma microbacia urbana /." Ilha Solteira, 2016. http://hdl.handle.net/11449/144450.
Full textResumo: Com o aumento da população mundial e com sua concentração cada vez maior no meio urbano uma gama de problemas vem se apresentando relacionado a esse aumento populacional de maneira direta ou indireta, esse êxodo das pessoas para os grandes centros urbanos vem alterando o espaço geográfico desse ambiente bem rapidamente, principalmente na região do sudeste brasileiro onde os processos de industrialização são mais evidentes. Com essa migração a ocupação e o uso do solo vêm sendo ocupada nem sempre da forma que os planos diretores das cidades recomendam proporcionando na maioria dos casos impactos negativos nos recursos naturais. As alterações antrópicas realizadas nessas áreas, como desmatamento e a urbanização, estão promovendo um desequilíbrio ao meio ambiente afetando áreas drenadas pelas bacias hidrográficas, a complexidade do ambiente urbano e de sua infraestrutura de drenagem tem uma influência inerente no escoamento superficial, este escoamento gera inundações urbanas, que impõe desafios à modelagem, a simulação destes cenarios exigem dados detalhados de elevação. Os problemas acarretados pela ocupação desordenada da bacia vêm sendo abordados em inúmeros estudos de casos que demonstram que o uso e ocupação do solo de forma inadequada e desordenada, muitas vezes, com obras mal dimensionadas, acarretam grandes prejuízos socioeconômicos. O planejamento integrado de uma bacia urbana é o único meio de viabilizar seus usos, sem que isso acarrete em um maior desequilíbrio do me... (Resumo completo, clicar acesso eletrônico abaixo)
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Friman, Jacob. "Skyfallskartering i Kumla : 2D-hydraulisk modellering och känslighetsanalys." Thesis, Uppsala universitet, Luft-, vatten och landskapslära, 2017. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-325123.
Full textUrban floods caused by intense rainfall have occurred more frequently the last couple of years. These rainfall events are expected to become more common in the future and create more floods in urban areas. This makes it important to investigate the extent and water levels from urban floods in the future. In order to simulate floods, different types of data is needed. This data can be both time consuming and difficult to obtain. With this in mind, it is interesting to investigate possible simplifications and assumptions of model parameters. A cloud burst mapping was made with 2D hydraulic modelling in Kumla with the software MIKE 21 Flow Model FM. The flood maps created were used to identify areas in Kumla which have a higher risk of being subject to high water levels. One uncertainty while modelling urban floods is the process of validating the results. There is often a lack of data for the used rainfall events or information from previous floods in the area. In flood modelling data is used which describes different model parameters, these comes with additional uncertainties and can make the validation more difficult. A sensitivity analysis was made to be able to examine effects on the results from variations in model parameters. The cloud burst mapping showed that large parts of Kumla will be affected by water levels which goes up to 1 m. The area Kumlaby was identified as being sensitive for high water levels. This is due to placement of Kumlaby below higher ground which causes water to flow toward Kumlaby. The ground below is mostly made up of clay which has low infiltration capacity. In the sensitivity analysis the bed resistance and infiltration capacity were identified as governing parameters regarding the extent and water levels of urban floods. In order to avoid over- or underestimation of floods it is important to have knowledge about these parameters in the model area. The use of a runoff coefficient instead of bed resistance, infiltration and evaporation were examined. The difference of the resulting flood were large in the whole model area. In smaller areas a runoff coefficient could be used with better results when a more detailed description can be made of the surfaces in the area. A scenario where green roofs were assumed to have been installed on all buildings in Kumla were examined. The simulations showed that both the extent and water levels decreased. This due to the fact that green roofs have a capacity to store water and delay flows of water.
Alvarez, Montero Gabriela Fiamma, and Cueva Carlos Alvaro Moreno. "Modelamiento hidráulico para el control y prevención de inundaciones mediante el uso de Hec-Ras 2d en la zona urbana del río Piura." Bachelor's thesis, Universidad Peruana de Ciencias Aplicadas (UPC), 2021. http://hdl.handle.net/10757/656880.
Full textDisasters caused by floods are increasingly common around the world, such as the case in the western part of North and South America, due to the presence of the “El Niño” phenomenon, which causes an increase in rainfall and flow rates. The rivers causing floods. For this reason, this present work has carried a numerical simulation of flooding in the face of extreme events such as El Niño, with the purpose of reducing the area and level of flooding before probable and different events in areas close to riverbeds. Hydrological data of average flows and instantaneous maximums over a period of 40 years has been used. For the morphological characterization of the area, information has been used on a digital terrain elevation model (DEM), obtained from the SPOT-7 satellite, with a resolution of 6x6m. The hydrological in-formation was processed using the Gumbel method to obtain simulation flows for return periods of 2, 5, 10, 50, 100 and 500 years. The numerical modeling was carried out using HEC-RAS 5.0.7, the flood area for FEN 2017 was obtained and compared with the SENTINEL-2 satellite image for validation. Likewise, extreme events were modeled with return periods greater than 10 years, since their results are relevant for the implementation of riverine protection structures, in strategic locations identified with greater vulnerability. Finally, these works managed to mitigate impact showing reduction in a percentage of the flooding area in the study area, from “Los Ejidos” dam to Bolognesi Bridge, in the province of Piura.
Tesis
Bazin, Pierre-Henri. "Écoulements lors d'inondations en milieu urbain : influence de la topographie détaillée et des échanges avec le réseau d'assainissement." Thesis, Lyon 1, 2013. http://www.theses.fr/2013LYO10241/document.
Full textAim of this thesis is to study the detailed modelling of flows that occur during urban floods. In a first part, bifurcation flows including small obstacles or channel profiles with sidewalks are studied on an experimental facility, and then numerically simulated with the two dimensional model Rubar20. Experimental and numerical results show the benefits of including small obstacles in an urban flood model, whereas there is only little benefit of using a detailed representation of the streets topography. In a second part, interactions between surface and underground pipe flows are studied. A physical model of an urban drainage system allows the validation of an analytical model predicting exchange discharges between both flow layers. A 1D/2D modelling (pipe/street) is set up with the models Rubar3/Rubar20 and validated on experimental flows observed on the physical model. In a third part, floods in the city of Oullins (near Lyon, France) are studied. Surface flows modelling is validated with field data, and we discuss the interest of several representations of the urban area. Integration of the sewer system in a 1D/2D model remains impacted by several uncertainties, yet this step shows the interest of the coupled modelling to describe complex flows interactions during urban floods, as well as limitations of the developed approach for shallow flows
Heinzlef, Charlotte. "Modélisation d'indicateurs de résilience urbaine face au risque d'inondation : co-construction d'un système spatial à la décision pour contribuer à l'opérationnalisation du concept de résilience Assessing and mapping urban resilience to floods with respect to cascading effects through critical infrastructure networks » Operationalizing urban resilience to floods in embanked territories – Application in Avignon, Provence Alpes Côte d’azur region A spatial decision support system for enhancing resilience to floods. Bridging resilience modelling and geovisualization techniques Operating urban resilience strategies to face climate change and associated risks: some advances from theory to application in Canada and France." Thesis, Avignon, 2019. http://www.theses.fr/2019AVIG1197.
Full textIn a context of climate change, increased urban flooding and increased uncertainty, urbanmanagers are forced to innovate to design appropriate risk management strategies. Among thesestrategies, making cities resilient has become an imperative. The concept of resilience is amultidisciplinary concept that defines the ability of a system to absorb a disturbance and then recoverits functions. This concept refers to technical, urban, social, architectural, architectural, economic andpolitical innovation and calls into question traditional risk management systems. This injunction toinnovation is perfectly adapted to the urban, economic, political, social and ecological complexity ofthe contemporary world. As a result, the concept of resilience is integrated with urban sprawl issues andassociated risks. However, despite this theoretical and conceptual adequacy, resilience remains complexto integrate into the practices of urban planners and territorial actors. Its multitude of definitions andapproaches have contributed to its abstraction and lack of operationalization.In response to this observation, this research aims to address these operational gaps by buildinga spatial decision support system to clarify and promote the integration of the concept into urbanpractices. The idea behind this approach is that urban resilience embodies the abilities and capacities ofa city and its population to develop before, during and after a disruptive event in order to limit itsnegative impacts. This scientific positioning therefore makes it possible to analyze urban resilience as acontinuum, highlighting proactive capacities that the urban system must develop in order to (re)act inthe face of flooding. This work was based on a socio-economic partnership with the City of Avignonand its GIS Service (Geographic Information System). The approach made it possible to build threemeasurement indicators to address the urban, technical and social resilience of the Avignon area. Theseindicators have made it possible to acquire information on the variables defining potential resilience thatwould foster the emergence of an adequate response to a natural disaster and more precisely to an urbanflood. The use of geovisualization techniques has made it possible to visualize treatments and results inorder to explain the approach to urban managers. At the same time, consultation workshops were heldto present and discuss the results obtained through the indicators with critical infrastructure managersand managers.The co-construction of these indicators, in order to build an analysis and knowledge aroundurban resilience, followed by the implementation of workshops with stakeholders in the territory, inorder to promote the territorial decision-making process, has made it possible to develop a culture ofresilience. This spatial decision support system has therefore made it possible to pool theoretical andpractical knowledge on urban risk and resilience issues in order to reach the consensus necessary fordecision-making and the operationalization of resilience
Maillot, Mathias. "Étude des remontées de nappe de Paris et de la Petite Couronne lors des épisodes de crue de la Seine et de la Marne." Electronic Thesis or Diss., Paris Sciences et Lettres (ComUE), 2019. http://www.theses.fr/2019PSLEM057.
Full textThe Paris urban area is a densely populated city where strategic infrastructures and population are subject to the floodingrisk during Seine and Marne Rivers flood events. The groundwater rising process is associated with flood event throughthe draining of streamwater toward the aquifer. The hydrogeological environment into an urban context is strongly affectedby the anthropic activities like permanent pumping and underground structures occurrence (basements, subway, etc. . . ).This study is based on two different approaches to describe the superficial aquifer of Paris urban area: (1) the water tablemapping using geostatistical tools helps to determine the streamwater-groundwater connection status, and to describethe hydrogeological functioning of the studied area. (2) The modelling of groundwater during flood events allows for theunderstanding of the risk from groundwater flooding
(11267826), Neel Arun Salvi. "DELINEATING THE IMPACT OF STORMWATER INFRASTRUCTURE USING INTEGRATED FLOOD MODELING." Thesis, 2021.
Find full text"Propagation of Radar Rainfall Uncertainties into Urban Flood Predictions: An Application in Phoenix, AZ." Master's thesis, 2020. http://hdl.handle.net/2286/R.I.57215.
Full textDissertation/Thesis
Masters Thesis Civil, Environmental and Sustainable Engineering 2020
Gordon, Ross M. "Next generation hydraulic modeling for inundation mapping and flood warning in complex urban systems." Thesis, 2007. http://hdl.handle.net/1911/20556.
Full textYang, Bo. "Ecohydrological Planning for The Woodlands: Lessons Learned After 35 Years." 2009. http://hdl.handle.net/1969.1/ETD-TAMU-2009-08-7179.
Full textJensen, Christopher Allen. "A hydrologic assessment of using low impact development to mitigate the impacts of climate change in Victoria, BC, Canada." Thesis, 2012. http://hdl.handle.net/1828/4211.
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