نتایج جستجو برای: Flood mapping

تعداد نتایج: 220361  

Journal: :اکو هیدرولوژی 0
حمید نوری . استادیار، گروه منابع طبیعی، دانشگاه ملایر، ایران علی رضا ایلدرومی دانشیار، گروه منابع طبیعی، دانشگاه ملایر، ایران مهدی سپهری مربی، گروه منابع طبیعی، دانشگاه ملایر، ایران نبی الله سپهری مربی، گروه آبیاری و زهکشی، دانشگاه بوعلی سینا، ایران محمد مهدی آرتیمانی مربی، گروه منابع طبیعی، دانشگاه لرستان، ایران

the flood is one of the natural disasters that doesnt create itself but the landuse change will be caused it that makes a lot of human and financial losses every year. in this study in gonbad chi basin to assess the impact of watershed mechanical operation on flood mapping used fuzzy method and ahp method and composition of slope mapping, landuse, permeability and flow accumulation that called ...

Journal: :caspian journal of enviromental sciences 0

rivers are important water resources for human life, but sometimes cause irreparable damages. the flood plains are fertile terrains which are endangered by flood. flood hazard mapping is one of the basic methods in flood fighting. in order to decline flood damages, the simulation of the hydraulic behavior of the rivers during flood occurrence is very important. in this study, areas that are flo...

A. Asghari E. Taghvaye Salimi V. Gholami,

Rivers are important water resources for human life, but sometimes cause irreparable damages. The flood plains are fertile terrains which are endangered by flood. Flood hazard mapping is one of the basic methods in flood fighting. In order to decline flood damages, the simulation of the hydraulic behavior of the rivers during flood occurrence is very important. In this study, areas that are flo...

Flash flood has been increasing in the Khartoum area, Sudan due to geographical conditions and climatic change as heavy rainfall and high temperature, therefore the present work tried to estimate the sensitivity of flash flood. The present work proposes an advanced technique of flood sensitivity mapping using the method of analytical hierarchy process. Ten factors as elevation, slope, distance ...

Journal: :international journal of energy and water resources 0
alireza mardookhpour civil engineering hosein jamasbi civil engineering

reliable estimates of river stream fl ow and fl ood zoning maps are needed for water resourcesmanagement such as fl ood mitigation, water supply, dam construction and irrigation. flood zoning needsaccurate data and is one of the non-structural fl ood management methods. this paper describes theapplication of hec-ras and gis model to determine fl oodplains maps for the part of sardabrud rivertha...

2004
Stian Solbø Inger Solheim

Space-borne SAR sensors are of special interest for mapping flood extent due to the possibility to acquire images in all weather conditions. In this article we review the SAR part of an operational flood mapping service. An operational service requires fully automatic methods that are able to process any available SAR data in near-real time. Mapping flood with SAR requires different approaches ...

2016
Jiongqian Liang Peter Jacobs Srinivasan Parthasarathy

Flooding is responsible for substantial loss of life and economy. Flood mapping, the process of distinguishing flooded areas from non-flooded areas during and after a disaster, can be very useful in guiding first response resources in a disaster situation, and in assessing flood risk in future disaster scenarios. This paper involves the use of image segmentation methods and human guidance to pr...

Journal: :Remote Sensing 2015
Nengcheng Chen Lianjie Zhou Zeqiang Chen

Remote sensing plays an important role in flood mapping and is helping advance flood monitoring and management. Multi-scale flood mapping is necessary for dividing floods into several stages for comprehensive management. However, existing data systems are typically heterogeneous owing to the use of different access protocols and archiving metadata models. In this paper, we proposed a sharable a...

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...

Floods are one of the most common natural disasters which causing financial and life losses, yearly. Therefore, to reduce the harmful effects of flood occurrence, it is necessary to prepare vulnerability maps for flood management. The aim of the present study is flood inundation mapping of Jahrom Township, Fars Province using multi-criteria decision making techniques such as AHP and TOPSIS and ...

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