نتایج جستجو برای: runoff generation

تعداد نتایج: 369228  

Journal: :فیزیک زمین و فضا 0
علیرضا کمال دانشجوی کارشناسی ارشد، مهندسی منابع آب، دانشگاه تهران، ایران علیرضا مساح بوانی استادیار، گروه مهندسی آب، پردیس ابوریحان، دانشگاه تهران، ایران

increased concentration of greenhouse gases is expected to alter the radiative balance of atmosphere, causing increases in temperature and changes in precipitation patterns and other climatic variables. these changes are associated with the changes in hydrological systems globally and at the basin scale. these changes include: precipitation patterns and extremes; the amount and generation of ri...

Journal: :Journal of environmental quality 2009
Anthony R Buda Peter J A Kleinman M S Srinivasan Ray B Bryant Gary W Feyereisen

Phosphorus (P) losses from agricultural landscapes arise from the interaction of hydrologic, edaphic, and management factors, complicated by their spatial and temporal variability. We monitored sites along two agricultural hillslopes to assess the effects of field management and hydrology on P transfers in surface runoff at different landscape positions. Surface runoff varied by landscape posit...

2012
P. Tarolli

This work analyses the prominent characteristics of flash flood regimes in two Mediterranean areas: the NorthWestern Mediterranean region, which includes Catalonia, France and Northern Italy, and the South-Eastern Mediterranean region, which includes Israel. The two regions are characterized by similarities in the hydro-meteorological monitoring infrastructure, which permits us to ensure homoge...

2003
Markus Weiler Brian McGlynn Kevin McGuire Jeff McDonnell

[1] Hydrographs are an enticing focus for hydrologic research: they are readily available hydrological data that integrate the variety of terrestrial runoff generation processes and upstream routing. Notwithstanding, new techniques to glean information from the hydrograph are lacking. After early approaches of graphically separating streamflow components, hydrograph separations in the past two ...

2010
L. S. Kuchment V. N. Demidov

A technique of using satellite-derived data for constructing continuous snow characteristics fields for distributed snowmelt runoff simulation is presented. The satellite-derived data and the available ground-based meteorological measurements are incorporated in a physically based snowpack model. The snowpack model describes temporal changes of the snow depth, density and water equivalent (SWE)...

2016
James M. Gilbert Jennifer L. Jefferson

Hillslope scale runoff is generated as a result of interacting factors that include water influx rate, surface and subsurface properties, and antecedent saturation. Heterogeneity of these factors affects the existence and characteristics of runoff. This heterogeneity becomes an increasingly relevant consideration as hydrologic models are extended and employed to capture greater detail in runoff...

2009
P. K. Gupta S. Panigrahy

The effects of climate change on hydrological regimes have become a priority area for water and catchment management strategies. The terrestrial hydrology driven by monsoon rainfall plays a crucial role in shaping the agriculture, surface and ground water scenario in India. Thus, it is imperative to assess the impact of the changing climatic scenario projected under various climate change scena...

Journal: :Journal of physics 2022

Abstract The characteristics of the runoff hydropower station are to generate power completely according natural runoff, and output generation change with flow. cluster prediction is conducive improving safety grid operation utilization rate hydropower. This paper analyzes stations, summarizes direction mainstream hydropower, hydrological model represented by Xin'an River model, puts forward a ...

2002
Vivek K. Arora

Available energy (often expressed in terms of potential evaporation) and precipitation largely determine annual evapotranspiration and runoff rates in a region. The ratio of annual potential evaporation to precipitation, referred to as the aridity index by Budyko, has been shown to describe the evaporation ratio (the ratio of annual evapotranspiration to precipitation) of catchments from a rang...

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