نتایج جستجو برای: runoff modelling

تعداد نتایج: 175959  

Journal: :Journal of contaminant hydrology 2007
P Göbel C Dierkes W G Coldewey

The infrastructure (roads, sidewalk, commercial and residential structures) added during the land development and urbanisation process is designed to collect precipitation and convey it out of the watershed, typically in existing surface water channels, such as streams and rivers. The quality of surface water, seepage water and ground water is influenced by pollutants that collect on impervious...

2017
Pertti Ala-Aho Doerthe Tetzlaff James P. McNamara Hjalmar Laudon Chris Soulsby Pertti Ala-aho

Tracer-aided hydrological models are increasingly used to reveal fundamentals of runoff generation processes and water travel times in catchments. Modelling studies integrating stable water isotopes as tracers are mostly based in temperate and warm climates, leaving catchments with strong snow influences underrepresented in the literature. Such catchments are challenging, as the isotopic tracer...

2014
Parviz Rezaei

Original scientific paper Determining snowmelt runoff share of watershed basins with snow and wet snow regimes is one of the main concerns of the experts in water resources field, assessment of which has been done so far with difficulties and high rate of error due to lack of snow survey and weather stations in highlands of basin and use of traditional surveying methods. Lack of integrated mana...

Journal: :Applied sciences 2021

Rainfall-runoff (R-R) modelling is used to study the runoff generation of a catchment. The quantity or rate change measure hydrological variable, called runoff, important for environmental scientists accomplish water-related planning and design. This paper proposes (i) an integrated model namely EO-ELM (an integration equilibrium optimizer (EO) extreme learning machine (ELM)) (ii) deep neural n...

Abstract Change in land use pattern influenced hydrological processes in basin and disrupt the normal balance of water flow. In the present research, hydrological parameters change of Babul Rod watershed basin has been that investigated concluded of land use changes in 1988 and 2009. To determine land use changes of Babul Rod watershed basin we has recruited TM satellite images 1988(1367) year ...

Journal: : 2022

In this study, taking into account the Aksu Stream data, daily total precipitation (P) and mean flow (Q) values were using time lagged, 8 different Rainfall-Runoff models created runoff value estimated for future. The have been tried with methods performances compared process. Artificial Intelligence (AI) methods, Neural Networks (ANN), Adaptive Neuro Fuzzy Inference System (ANFIS) Heuristic Re...

2015
Marco Carbone Giuseppe Brunetti Patrizia Piro Ataur Rahman

The increasing imperviousness of urban areas reduces the infiltration and evapotranspiration capacity of urban catchments and results in increased runoff. In the last few decades, several solutions and techniques have been proposed to prevent such impacts by restoring the hydrological cycle. A limiting factor in spreading the use of such systems is the lack of proper modelling tools for design,...

2010
Anna Palla John J. Sansalone Ilaria Gnecco Luca G. Lanza

The objectives of this study are to provide detailed information about green roof performances in the Mediterranean climate (retained volume, peak flow reduction, runoff delay) and to identify a suitable modelling approach for describing the associated hydrologic response. Data colleted during a 13 month monitoring campaign and a seasonal monitoring campaign (September to December 2008) at the ...

2011
T. H. M. Rientjes B. U. J. Perera A. T. Haile P. Reggiani

In this study lake levels of Lake Tana are simulated at daily time step by solving the water balance for all inflow and outflow processes. Since nearly 62% of the Lake Tana basin area is ungauged a regionalisation procedure is applied to estimate lake inflows from ungauged catchments. The procedure combines automated multi-objective calibration of a simple conceptual model and multiple regressi...

2009
MD. Aktaruzzaman Theo G. Schmitt

This paper investigates the necessity of detailed surface representation in order to generate a feasible platform for the detailed simulation of urban runoff and surface flooding caused by heavy rainfalls. In recent years, urban flooding has become one of the major environmental hazards and it has caused damage to the buildings and properties over billion of Euros. Expansion of urban catchment ...

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