نتایج جستجو برای: earthquake and flood

تعداد نتایج: 16844312  

Journal: :Soil Dynamics and Earthquake Engineering 2022

Earthquake and scouring are the leading causes of bridge failure worldwide, resulting not only in casualties fatalities but also enormous societal economic losses. A great number bridges earthquake-prone countries cross rivers have shallow foundations, which renders them highly vulnerable to combined effects earthquake flood-induced scour. Thus, research on dynamic response with foundations und...

2003
A. Sankarasubramanian Upmanu Lall

[1] Recognizing that the frequency distribution of annual maximum floods at a given location may change over time in response to interannual and longer climate fluctuations, we compare two approaches for the estimation of flood quantiles conditional on selected ‘‘climate indices’’ that carry the signal of structured low-frequency climate variation, and influence the atmospheric mechanisms that ...

Journal: :journal of rangeland science 2010
g. i. joshi a. s. patel

surat is a highly developed, thickly populated cosmopolitan character city with full of various activities going on day and night. any natural calamity which causes loss of lives to property and infrastructure along with effects on industrial processes going on has serious impact on economy of the state. therefore, it becomes highly necessary that flood events are studied and analyzed properly ...

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...

Journal: :The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences 2023

Abstract. Recent Kahramanmaras earthquakes (Mw 7.7 and 7.6) occurred on 6 February 2023 have shown the importance of site selection for settlements infrastructure considering fact that multiple hazards may affect same area even interact with each other. The triggered several landslides, which also increased level destruction. Here, we implemented a multi-hazard susceptibility assessment approac...

2011
P. Bubeck H. de Moel L. M. Bouwer C. J. H. Aerts

Flood damage modelling is an important component in flood risk management, and several studies have investigated the possible range of flood damage in the coming decades. Generally, flood damage assessments are still characterized by considerable uncertainties in stage-damage functions and methodological differences in estimating exposed asset values. The high variance that is commonly associat...

Journal: :پژوهش های جغرافیای طبیعی 0
کریم سلیمانی دانشیار مرکز سنجش از دور دانشگاه مازندران محمد بشیر گنبد کارشناسی ارشد دانشکده منابع طبیعی دانشگاه مازندران سید رمضان موسوی مربی دانشکده منابع طبیعی دانشگاه مازندران شهرام خلیقی استادیار دانشکده منابع طبیعی دانشگاه تهران

flood is one of the major natural disasters in iran, which is mostly, affected most parts of the country and caused hazards. therefore, identification of the area with high potential risk of flood occurrence is the main purpose in order to the flood control and reducing its damages. in this research the role of the flood routing in identification of the area with high potential flooding has inv...

Journal: :مرتع و آبخیزداری 0
علی جعفری کارشناس ارشد مرکز تحقیقات کشاورزی و منابع طبیعی استان بوشهر فاطمه توکلی راد کارشناس ارشد مرکز تحقیقات کشاورزی و منابع طبیعی استان بوشهر

flood spreading has an effective role in the soil improvement and fertility, ground water storage, revival of vegetation and prevention of fluent sands movement. one of the main problem of flood spreading projects is the entrance of sediment to the spreading systems and sedimentation in it. sediment reduces the efficiency of the flood spreading system and after awhile lose its efficiency.the ma...

The disparate spatial and temporal distribution of rainfall in the country and climate variation sometimes leads to rivers flooding and large flood events, which are remarkable for life and financial losses. Flood control design requires accurate knowledge of the flood generator basin, especially smaller ones, in large basins. Determining the potential of flood generation to specify the...

Journal: :مدیریت آب و آبیاری 0
نسترن چیت ساز کارشناس ارشد گروه مهندسی آبیاری و زهکشی، پردیس ابوریحان، دانشگاه تهران، پاکدشت - ایران محمد ابراهیم بنی حبیب دانشیار گروه مهندسی آبیاری و زهکشی، پردیس ابوریحان، دانشگاه تهران، پاکدشت – ایران

the multi-criteria decision making model is an important tool for decision making in water resource management. in this paper, the topsis model was used to rank seven flood management options in the gorganrood river flood management project, including conservation of natural condition, golestan reservoir management, levee construction, diversions-channel construction, flood forecasting and warn...

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