Essays about: "hydrograf"

Found 5 essays containing the word hydrograf.

  1. 1. How variations of the duration and time to peak of the Chicago Design Storm affect the hydraulic response, as well as the areas contributing to peak runoff, of a synthetic urban catchment area

    University essay from Uppsala universitet/Luft-, vatten- och landskapslära

    Author : Oskar Ahlstedt; [2022]
    Keywords : Avrinningsområde; översvämningsmodellering; peak-bidragande område; hydrograf; hyetograf; MIKE 21; regnintensitet; CDS-regn; Chicago Design Storm;

    Abstract : With an expanding urbanization in the world, and thus the expansion of impermeable surfaces, the risk of pluvial floods is an increasing factor that needs to be considered. This, in combination with increasing rain intensities and frequency of rain events indicates a problem both today and for the future. READ MORE

  3. 2. Improving stream flow estimation in a montane rainforest stream in Costa Rica : The impact of adding a high flow estimation

    University essay from KTH/Hållbar utveckling, miljövetenskap och teknik

    Author : Martin Dahlin; [2022]
    Keywords : Streamflow information; Manning s estimation; rating curve; hydrographs; Vattenföring; avbördningskurva; hydrograf; Mannings ekvation;

    Abstract : A key piece of information necessary for water management is accurate streamflow information. However, the available data and resources for gathering information vary around the world. READ MORE

  4. 3. A GIS-Based Method of Deriving Spatially Distributed Unit Hydrographs

    University essay from KTH/Hållbar utveckling, miljövetenskap och teknik

    Author : Ann-Sofi Lenander; [2021]
    Keywords : the unit hydrograph; GIS; ArcPy; design storm; SCS-CN method; spatial data; excess rainfall; enhetshydrografen; GIS; Arcpy; design regn; SCS-CN metoden; geodata; effektivt regn;

    Abstract : Prior to using hydraulic and spatially distributed modelling softwares, the theory of the unit hydrograph was a commonly used tool for modelling of surface and runoff water. While distributed models often provide detailed results from extensive calculation durations, the unit hydrograph have been questioned for simplifying the physical characteristics of the watershed modelled. READ MORE

  5. 4. Contributions of Event Water to Streamflow in an Agricultural Catchment

    University essay from Uppsala universitet/Institutionen för geovetenskaper

    Author : Johannes Hagby; [2018]
    Keywords : Isotopic hydrograph separation; tracer; event water; pre-event water; sequential rainfall collector; Hydrograf separation; spårämne; eventvatten; pre-event vatten; sekventiell regnuppfångare;

    Abstract : In agricultural catchments, hydrological processes play an important role in the export of nutrients. Water that enters a catchment during a rain event (event water) can have different flow paths and residence times. READ MORE

  6. 5. Analysis of Hydrometeorological Measurements in Tuy Loan River Basin, Vietnam - A Minor Field Study

    University essay from Lunds universitet/Avdelningen för Teknisk vattenresurslära

    Author : Evelina Karlsson; Karolina Persson; [2005]
    Keywords : Väg- och vattenbyggnadsteknik; soil mechanics; offshore technology; hydraulic engineering; Tuy Loan; Flash floods; Thu Bon; centrala Vietnam; Da Nang; vattenbalans; hydrograf; enhetshydrograf; looprating curve; korrelation; HRC-model; Technological sciences; Civil engineering; Teknik; Environmental technology; pollution control; Miljöteknik; kontroll av utsläpp; Technology and Engineering; Earth and Environmental Sciences;

    Abstract : Bakgrund: De centrala delarna av Vietnam har en årlig nederbörd på 4000 mm/år och det är vanligt med hastigt uppkomna översvämmningar (s.k. flash floods) här. Flash floods är plötsliga översvämmningar med ett högt flöde producerade av kraftiga regn. READ MORE