نتایج جستجو برای: flood management

تعداد نتایج: 871229  

2016
Maria Pregnolato Alistair Ford Craig Robson Vassilis Glenis Stuart Barr Richard Dawson

Critical infrastructure networks, including transport, are crucial to the social and economic function of urban areas but are at increasing risk from natural hazards. Minimizing disruption to these networks should form part of a strategy to increase urban resilience. A framework for assessing the disruption from flood events to transport systems is presented that couples a high-resolution urban...

2008
A. W. Jayawardena

Climatic variability, unplanned land use pattern and encroachment into the flood plain are affecting the hydrology of Bagmati river basin of Nepal. In this study, methodology to improve present flood management system with non-structural countermeasures has been elaborated. Study of hydrological condition, basin scale rainfall runoff modeling and inundation analysis is helpful to prepare commun...

Journal: :International Journal of Science and Engineering Applications 2017

2004
Ahmed Kamal

Information is provided about the general approach and experience regarding flood management and mitigation in Pakistan, and in the Lai Nullah Basin in particular. An extraordinary flood event in the year 2001 marked the start of a shift towards the concept of integrated flood management with a view to effectively manage and mitigate flood and related problems, both on a national basis and on a...

Journal: :Remote Sensing 2011
Kwasi Appeaning Addo Lloyd Larbi Barnabas Amisigo Patrick Kwabena Ofori-Danson

The increasing rates of sea level rise caused by global warming within the 21st century are expected to exacerbate inundation and episodic flooding tide in low-lying coastal environments. This development threatens both human development and natural habitats within such coastal communities. The impact of sea level rise will be more pronounced in developing countries where there is limited adapt...

Journal: :ISPRS Int. J. Geo-Information 2013
Sudha Yerramilli

The overall objective of the study is to generate information for an enhanced land use planning with respect to flood hazards. The study assesses the potential impact of climate change by simulating a dam break scenario in a high intensity rainfall event and evaluates the vulnerability risk in the downstream region by integrating ArcGIS and Hydrologic Engineering Centers River Analysis System (...

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: :ISPRS Int. J. Geo-Information 2015
Alan Smith Andy Newing Niall Quinn David J. Martin Samantha Cockings Jeffrey Neal

Human populations are not static or uniformly distributed across space and time. This consideration has a notable impact on natural hazard analyses which seek to determine population exposure and risk. This paper focuses on the coupling of population and environmental models to address the effect of seasonally varying populations on exposure to flood risk. A spatiotemporal population modelling ...

2012
Junfei CHEN Qiongji JIN Huimin WANG Shufang ZHAO

Climate change has caused more frequent floods in China which have already resulted in huge losses. Thus flood risk assessment and management is an important research topic. In this paper, a new model of flood risk assessment is proposed based on the information diffusion theory and the back propagation (BP) neural network. Due to the fact that flood statistics data are relatively short and oft...

Journal: :Risk analysis : an official publication of the Society for Risk Analysis 2003
Richard S J Tol Nicolien van der Grijp Alexander A Olsthoorn Peter E van der Werff

Climate change may well lead to an increased risk of river floods in the Netherlands. However, the impacts of changes in water management on river floods are larger, either enhancing or reducing flood risks. Therefore, the abilities of water-management authorities to learn that climate and river flows are changing, and to recognize and act upon the implications, are of crucial importance. At th...

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