نتایج جستجو برای: flood zonation

تعداد نتایج: 24960  

Journal: :نشریه علمی - پژوهشی هیدرولوژی کاربردی 0
abolfazl mohammadi natural disaster management, sazehpardazi iran co abdollah pirnia natural resources faculty, sari agriculture sciences and natural resources university, mazandaran province, iran

flood is considered as a major threat among natural disasters in the world. this case becomes more important and has a higher risk in urban areas due to the existence of important uses. therefore, to reduce damages resulted from flood, this phenomenon must be managed and planned using structural and non-structural approaches. considering the development in iran has been carried out in high risk...

2010
Karim Solaimani

Flood plains and the area near to the rivers channels, because of their special circumstances such as fertility and water resources are appropriate situations for the social and agricultural activities, but due to morphological characteristics usually, these area are affected by different flood hazards. However, in these areas, determination of flood zone and its height and also detecting prope...

Journal: :تحقیقات جغرافیایی 0
علی اکبر رسولی دانشگاه تبریز علی اکبر رسولی دانشگاه تبریز حسن محمودزاده دانشگاه تبریز وحید امامی کیا دانشگاه آزاد اسلامی-واحدمرند

flood risk zonation is necessary to control and predict the amplitude of flood damage.the purpose of this research is to evaluate the rate of flood risk vulnerability and the flood damage assessment in tabriz. specific variables of this study are land use , population density , river beds , slope classes residential density , cn coefficient , runoff coefficient , open spaces and old buildings.m...

2015
Kaj Hoernle Joana Rohde Folkmar Hauff Dieter Garbe-Schönberg Stephan Homrighausen Reinhard Werner Jason P. Morgan

Increasingly, spatial geochemical zonation, present as geographically distinct, subparallel trends, is observed along hotspot tracks, such as Hawaii and the Galapagos. The origin of this zonation is currently unclear. Recently zonation was found along the last ∼70 Myr of the Tristan-Gough hotspot track. Here we present new Sr-Nd-Pb-Hf isotope data from the older parts of this hotspot track (Wal...

2007
Jiquan Zhang Tomoharu HORI Hirokazu Tatano Norio Okada Chao Zhang Takuya Matsumoto

Abstract: This paper presents the methodology and procedure for flood risk assessment using GIS and flood inundation model (FIM) based on the “micro-zonation concept” in which an entire floodplain considered is divided into numerous unit areas (meshes or grids). In this study, Shinkawa-river floodplain around Nagoya City of Aichi Prefecture in Japan an urbanized lowland area, which was greatly ...

ژورنال: آبخیزداری ایران 2020

Flood zonation mapping is one of the priorities for the soil and water management, which Remote Sensing (RS) capabilities are very applicable to this issue. The main objective of this research was study of accuracy of the Object oriented and Pixel based methods for flood zonation mapping in the Taleghan River basin. Therefore, the Sentinel 2A satellite image of the study area classified using s...

Journal: :Journal of Environmental Management 2021

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: Desert 2016
Afshin Jahanshahi, Ali Afzali, Mohammad Golshan

Development of rural areas in rivers margins and flood plains, without understanding and attention to the dynamical and hydrological conditions and upstream areas of the rivers will cause to increase flood risk and loss of life and financial. Flood zoning has many applications, in floodplain management. For management of the three major branches of the Halilrood River, Rabor, Roodar and Javaran...

Journal: :ISPRS - International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences 2016

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