نتایج جستجو برای: rainfallsimulator and runoff

تعداد نتایج: 16829761  

Journal: :Social Choice and Welfare 2007
Eyal Baharad Zvika Neeman

This paper identifies a family of scoring rules that are robust against coalitional manipulations that result in inefficient outcomes. We discuss the robustness of a number of Condorcet consistent and “point runoff” voting rules against such inefficient manipulation and classify voting rules according to their potential vulnerability to inefficient manipulation.

Journal: :desert 2014
elahe goodarzi alireza massah bavani mohammadtaghi dastorani ali talebi

this study aims to evaluate effects of two downscaling methods; change-factor and statistical downscaling on therunoff of the azam-harat river located at yazd province (with an arid climate) of iran, under the a2 emission scenariofor the period of 2010-2039. for this purpose, cgcm3-ar4 model; a rainfall-runoff conceptual model, ihacres; twodownscaling models, change factor and lars-wg were appl...

Journal: :مرتع و آبخیزداری 0
شهرام خلیقی استادیار دانشکدة منابع طبیعی دانشگاه تهران، کرج محمد رستمی خلج دانشجوی دکتری آبخیزداری، دانشکدة منابع طبیعی دانشگاه تهران، کرج محمد مهدوی استاد دانشکدة منابع طبیعی دانشگاه تهران، کرج علی سلاجقه استاد دانشکدة منابع طبیعی دانشگاه تهران، کرج

large impervious surfaces and man-made waterways are the characteristic of urban area. increasing urbanization and rapid growth of cities in recent decades towards the upstream watershed, has been severely affected on rainfall-runoff processes in urban area. therefore, to computer models in order to illustrate these processes the proper design or assessment of urban drainage systems has special...

Runoff assessment and estimation is crucial for watershed management as it provides information that is needed to expedite the course of watershed planning and development. The most commonly used model due to its simplicity and versatility in runoff estimation is the soil conservation service curve number developed by the United States Department of Agriculture. The study estimates the surface ...

With decreasing of fresh water availability via population growth, collection and re-use of urban runoff as a non-drinking water source was suggested for the development of the cities located in dry area. But, non-point polluting sources in urban areas should affect the quality of urban runoff . A direct relationship was observed between rainfall characteristics and the amount of contaminants i...

Haidar Mirzai Iman Saleh Khabat Khosravi,

Runoff estimation resulted from precipitation is the basis of more study in various develop and exploit design from water resource, then its measure and calculation due to environmental bottlenecks, always have a plenty problem. As a result of the importance of output runoff estimation and flood volume in watershed for the sake of country integrated watershed management in this study tried to 9...

Journal: :آب و خاک 0
علی آزموده عطااله کاویان کریم سلیمانی قربان وهاب زاده

abstract land use change, especially natural ecosystems transformation, has high effects on soil physico-chemical as well as biological characteristics and also, has effect on runoff and soil erosion. analysis of runoff and soil erosion dynamics can be useful in improvement of management proposals and quantifying runoff and soil erosion changes. so, this research was carried out to investigate ...

امیر پور رباط, مهدی , ایوبی, شمس الله , جلالیان, احمد , قربانی, بهزاد ,

  Soil erosion is one of the most threatening issues for crop production and environmental qualities, especially for soil and water resources. Appropriate knowledge about total soil loss and runoff is valuable in order to perform soil and water conservation practices in watersheds. EUROSEM, "a single event, dynamic and distributed model," was developed to simulate soil loss, sediment transporta...

Haidar Mirzai Iman Saleh Khabat Khosravi,

Runoff estimation resulted from precipitation is the basis of more study in various develop and exploit design from water resource, then its measure and calculation due to environmental bottlenecks, always have a plenty problem. As a result of the importance of output runoff estimation and flood volume in watershed for the sake of country integrated watershed management in this study tried to 9...

Journal: :مرتع و آبخیزداری 0
یحیی پرویزی استادیار مرکز تحقیقات کشاورزی و منابع طبیعی کرمانشاه، کرمانشاه محمد قیطوری استادیار مرکز تحقیقات کشاورزی و منابع طبیعی کرمانشاه، کرمانشاه مسیب حشمتی استادیار مرکز تحقیقات کشاورزی و منابع طبیعی کرمانشاه، کرمانشاه

the wepp physically model is able to dynamically simulate runoff and soil erosion using physical concepts of erosion and hydraulic of overland flow science considering plant growth, residue decomposition, winter process. determination of the capability of this model in runoff and erosion estimation in different range type with investigation the effects of management were the main objectives of ...

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