نتایج جستجو برای: intelligent system for flood forecasting

تعداد نتایج: 10978752  

2003
Paul James Smith Toshiharu Kojiri

A framework for short-term probabilistic forecasting of watershed flood stage conditions using a distributed rainfall-runoff model is proposed. A stochastic rainfall pattern simulation model capable of generating input for a distributed rainfall-runoff model is developed. Generation of rainfall patterns over a 6-hour period is achieved using a translation vector rainfall forecasting process mod...

Journal: :محیط شناسی 0
امین حسین پور میل آغاردان دانشجوی دکتری مهندسی سیستم های اطلاعات مکانی، دانشکده مهندسی نقشه برداری و اطلاعات مکانی، پردیس دانشکده های فنی دانشگاه تهران رحیم علی عباسپور استادیار گرایش مهندسی سیستم های اطلاعات مکانی، دانشکده مهندسی نقشه برداری و اطلاعات مکانی، پردیس دانشکده های فنی دانشگاه تهران فاطمه شیدایی کارشناس ارشد بخش ترویج و آموزش کشاورزی دانشگاه شیراز

flooding, which is an overflow of water, brings massive biological and economic problems all around the world and disrupts many people’s lives. based on several effective factors in flood occurrence as well as unknown relationships between parameters, researchers have used various methods to forecast flood over the past decade. an investigation of the conducted studies on flood forecasting reve...

Journal: :محیط شناسی 0
میر امید هادیانی مربی گروه محیط زیست، دانشکده منابع طبیعی، دانشگاه آزاد اسلامی، واحد قائم شهر وحید غلامی دانشجوی دکتری آبخیزداری از دانشگاه آزاد اسلامی تهران, واحد علوم و تحقیقات زهرا نژادآذر عضو باشگاه پژوهشگران جوان دانشگاه آزاد اسلامی واحد قائم شهر

there are different methods for controling the flood damages which one of them is flood zoning. in this method, flood zones are determined by simulating river hydraulic behavior and its flood plain for different return periods.in other hand, soil and specially plant coverage are the most effective factor to determine manning roughness coefficient. so it is expected, seasonal plant coverage chan...

2017
Simon Burkard Frank Fuchs-Kittowski

Flood forecasting is particularly difficult and uncertain for small drainage basins. One reason for that is the absence of adequate temporal and spatial hydrological input variables for model-based flood predictions. Incorporating additional information collected by volunteers with the help of their smartphones can improve flood forecasting systems. Data collected in this way is often referred ...

2016
Hongyan Li Shanshan Bao Xiaojun Wang Hang Lv

Rainstorm weather systems and storm flood characteristics were studied to explore the relationship between the rainstorm weather system, the type of rainstorm, the cause of the flood and the time of occurrence, and some basic characteristics law of storm floods are summarized in the Second Songhua River Basin (Northeastern China). Then, the periodicity of catastrophic years was identified using...

2017
Kuang Li Guangyuan Kan Liuqian Ding Qianjin Dong Kexin Liu Lili Liang

The influence of initial state variables on flood forecasting accuracy by using conceptual hydrological models is analyzed in this paper and a novel flood forecasting method based on correction of initial state variables is proposed. The new method is abbreviated as ISVC (Initial State Variable Correction). The ISVC takes the residual between the measured and forecasted flows during the initial...

2012
P. J. Smith K. J. Beven A. H. Weerts

This paper considers the correction of deterministic forecasts given by a flood forecasting model. A stochastic correction based on the evolution of an adaptive, multiplicative, gain is presented. A number of models for the evolution of the gain are considered and the quality of the resulting probabilistic forecasts assessed. The techniques presented offer a computationally efficient method for...

2005
R. D. SINGH

The real time flood forecasting is one of the most effective nonstructural measures for flood management. For formulating the flood forecast in the real time, the observed meteorological and flow data are transmitted to the forecasting station through the different means of data communication which include telephone, wireless and network of telemetry stations etc. The collected meteorological a...

2011
Wan Hussain Wan Ishak Ku Ruhana Ku-Mahamud Norita Md Norwawi

Reservoir is one of the emergency environments that required fast an accurate decision to reduce flood risk during heavy rainfall and contain water during less rainfall. Typically, during heavy rainfall, the water level increase very fast, thus decision of the water release is timely and crucial task. In this paper, intelligent decision support model based on neural network (NN) is proposed. Th...

2005
Martin Maliska Branislav Simo Ladislav Hluchý

This paper describes a workflow management system that was implemented according to the requirements of a Flood forecasting application [1] developed in the CrossGrid project [2]. The flood forecasting application contains several simulation models (meteorological, hydrological, hydraulic) implemented as the grid jobs. A need for a cascade execution of these models has been a motivation for cre...

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