نتایج جستجو برای: catchment peak discharge therefore

تعداد نتایج: 856892  

Journal: :Sustainability 2022

Frequent flood hazards in the Raoyang River Basin western Liaoning, China, have posed serious threats to people’s lives and property. In an effort study simulation efficiencies of hydrological models this arid semi-arid catchment, examined performance Xin’anjiang model, Liaoning unsaturated DHF model Dongbaichengzi station watershed upper reaches River, China. Additionally, paper proposed impro...

Journal: :IOSR Journal of Mechanical and Civil Engineering 2017

2003
Hilde Vernieuwe Bernard De Baets

In this paper, the use of fuzzy models relating rainfall to catchment discharge is investigated for the Zwalm catchment in Belgium. The models are built along the lines of Gaweda’s method [4]. Since acceptable models were not obtained for this data set, the method was further adapted. The newly obtained models are of comparable performance as Takagi–Sugeno models based on the Gustafson–Kessel c...

Journal: Geopersia 2018

The karstic Rijab Spring with an average discharge of 3290 l/s is located in the Alvand River basin in the northwest of the Zagros, Iran, which drains Asmari formation. To investigate groundwater flow in the catchment area of the Spring, the physicochemical parameters include major cations and anions, discharge, EC, pH, and temperature were studied from September 2000-2002. The results indicate...

2005
A. Galgaro

Monitoring of debris flows aimed to the assessment of their physical parameters is very important both for theoretical and practical purposes. Peak discharge and total volume of debris flows are crucial for designing effective countermeasures in many populated mountain areas where losses of lives and property damage could be avoided. This study quantifies the relationship between flow depth, ac...

2017
Laurence C Smith Kang Yang Lincoln H Pitcher Brandon T Overstreet Vena W Chu Åsa K Rennermalm Jonathan C Ryan Matthew G Cooper Colin J Gleason Marco Tedesco Jeyavinoth Jeyaratnam Dirk van As Michiel R van den Broeke Willem Jan van de Berg Brice Noël Peter L Langen Richard I Cullather Bin Zhao Michael J Willis Alun Hubbard Jason E Box Brittany A Jenner Alberto E Behar

Meltwater runoff from the Greenland ice sheet surface influences surface mass balance (SMB), ice dynamics, and global sea level rise, but is estimated with climate models and thus difficult to validate. We present a way to measure ice surface runoff directly, from hourly in situ supraglacial river discharge measurements and simultaneous high-resolution satellite/drone remote sensing of upstream...

Journal: :Journal of Hydrology 2021

A long-term database with information on precipitation, discharge and sediment yield dynamics was analyzed to characterize the temporal structure response of a catchment in humid mountain badland area. Due non-linearity non-stationary nature data, combination frequency analysis wavelet reconstruction techniques were initially used determine dominant time scales yield. Within full spectrum scale...

2010
A. J. Teuling I. Lehner J. W. Kirchner S. I. Seneviratne

[1] Heterogeneity in small‐scale subsurface flow processes does not necessarily lead to complex system behavior at larger scales. Here we use the simple dynamical systems approach recently proposed by Kirchner (WRR, 2009) to analyze, characterize, and simulate streamflow dynamics in the Swiss Rietholzbach catchment. The Rietholzbach data set used here provides 32 years of continuous and high‐qu...

Journal: :اکو هیدرولوژی 0
یونس نوراللهی دانشیار دانشکدۀ علوم فنون نوین دانشگاه تهران حسین یوسفی استادیار دانشکدۀ علوم فنون نوین دانشگاه تهران مهیار طاهری باویل علیایی دانشجوی کارشناسی ارشد مهندسی صنایع، دانشکدۀ مهندسی صنایع دانشگاه تهران محمد محمدی دانشجوی کارشناسی ارشد مهندسی سیستم ‏های انرژی، دانشکدۀ علوم فنون نوین دانشگاه تهران

hydropower power generation is one of the most important sources of renewable energies. small hydropower plants are becoming the most popular option of hydropower plants, which can be applied in small and remote places, and are able to produce cheap, clean and reliable electricity. in iran and most developing countries, electricity transmission to remote regions for reasons such as high transmi...

Journal: :Journal of environmental quality 2014
Laurie Boithias Raghavan Srinivasan Sabine Sauvage Francis Macary José Miguel Sánchez-Pérez

High nitrate concentrations in streams have become a widespread problem throughout Europe in recent decades, damaging surface water and groundwater quality. The European Nitrate Directive fixed a potability threshold of 50 mg L for European rivers. The performance of the Soil and Water Assessment Tool model was assessed in the 1110-km Save catchment in southwestern France for predicting water d...

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