نتایج جستجو برای: flood

تعداد نتایج: 23227  

Journal: :PeerJ PrePrints 2016
Ivan Marchesini Mauro Rossi Paola Salvati Marco Donnini Simone Sterlacchini Fausto Guzzetti

8 Floods are frequent and widespread in Italy and pose a severe risk for the population. Local administrations commonly use flow propagation models to delineate the flood prone areas. These modeling approaches require a detail geo-environmental data knowledge, intensive calculation and long computational times. Conversely, statistical methods can be used to asses flood hazard over large areas, ...

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...

2015
Jian Tang Qingyun Li T C Cham Y Mitani

2011 Thailand flood has brought serious impact to downstream of Chao Phraya River Basin. The flood peak period started from August, 2011 to the end of October, 2011. This research focuses on midstream of Chao Phraya River Basin, which is Nakhon Sawan area includes confluence of Nan River and Yom River, also confluence of Ping River and Nan River. The main purpose of this research is to understa...

2012
CHEN Xiao-hong WANG

Wujiang River, one of the main branches of the Beijiang River in South China, is frequently suffered from flood disasters. Flood clustering becomes one of the critical sub-issues for realizing the different types of flood features. This paper attempts to put forward a flood clustering approach for flood feature identification which is important to the flood risk management and flood forecasting...

2007
HONGMING HE JIE ZHOU QIAN YU YONG Q. TIAN ROBERT F. CHEN

Floods cause environmental hazards and influence on socio-economic activities. In this study, we evaluated the historic flood frequency at a confluence in the middle Yellow River, China. A non-parametric, multivariate, empirical, orthogonal function matrix model, which consists of time correlation coefficients of flood discharge at different gauge stations and flood events was used for the anal...

2005
Frank Messner Volker Meyer Jochen Schanze Evzen Zeman Jiri Marsalek

The current state-of-the-art in flood damage analysis mainly focuses on the economic evaluation of tangible flood effects. It is contended in this discussion paper that important economic, social and ecological aspects of flood-related vulnerabilities are neglected. It is a challenge for flood research to develop a wider perspective for flood damage evaluation.

2012
Philippe Crochet

The goal of this study is to develop an objective methodology for estimating design floods, i.e. the flood peak discharge with return period T , at ungauged river catchments in Iceland. First, a regional flood frequency analysis is presented for estimating the T -year flood peak discharge with fixed duration D, Q(T,D), for poorly gauged and ungauged catchments. This is done by scaling a regiona...

2007
RICHARD M. DAVIDSON

The purpose of this article is to examine major interrelated issues that are present in current discussions about the biblical Flood narrative of Gen 6-9. These include such questions as: the unity and literary genre of these chapters, the nature and extent of the biblical Flood, the relationship between history and theology in the Flood narrative, and the relationship of the biblical Flood nar...

2009
J. C. J. H. Aerts

To support the transition from traditional flood defence strategies to a flood risk management approach at the basin scale in Europe, the EU has adopted a new Directive (2007/60/EC) at the end of 2007. One of the major tasks which member states must carry out in order to comply with this Directive is to map flood hazards and risks in their territory, which will form the basis of future flood ri...

2008
MARY C. BOURKE Mary C. Bourke

The morphostratigraphy of flood plains along unconfined reaches of the Todd River, central Australia, indicate that flood plain formation is dominated by high magnitude floods. Processes of flood plain destruction include channel widening, vertical stripping, flood channel, back channel and macroturbulent scour. Flood plain construction occurs predominantly during high magnitude floods. Overban...

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