نتایج جستجو برای: flood spreading system

تعداد نتایج: 2276158  

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...

2006
Jim Elliott

The Australian Bureau of Meteorology is the lead national agency for flood forecasting and warning services in Australia, working in partnership with agencies at the State and Local Government levels. These services cover river basins with response times ranging from 6-12 hours through to very large basins with flood travel times of the order of weeks. Flash flood warning services are also prov...

Journal: :مرتع و آبخیزداری 0
سمانه رضوی زاده دانشجوی دکتری دانشگاه کشاورزی و منابع طبیعی ساری علی سلاجقه دانشیار دانشکدة منابع طبیعی دانشگاه تهران شهرام خلیقی سیگارودی استادیار دانشکدة منابع طبیعی دانشگاه تهران محمد جعفری استاد دانشکدة منابع طبیعی دانشگاه تهران

land use change is one of the main factors in the process of changing the regime of flood in watersheds. taleghan watershed has been subjected to many land use changes over years, which probably effects on flood characteristics of taleghan river. in present study the effects of land use change on some parameters including peak flow, volume and flood base time, in part of taleghan basin, was inv...

2014
Om Prakash K. Srinivasan K. P. Sudheer

A novel multi-objective simulation-optimization (S-O) framework for flood mitigation in a river-reservoir system with multiple reservoirs and control points is proposed. Different combinations of objectives regarding flood mitigation in one or more of the reservoirs and/or one or more of the control points can be specified within the framework, namely, (1) maximizing the flood releases from the...

Journal: :Environmental Modelling and Software 2014
Nengcheng Chen Ke Wang Changjiang Xiao Jianya Gong

A geospatial sensor web can be seen as a complex observation system consisting of distributed nodes with different functions and web-based access interfaces. Because of its heterogeneous characteristic, the precise discovery and efficient allocation of available nodes have become key problems in the field of sensor web resource integrated management. Considering the management requirements of a...

2012
S. J. MURRAY A. D. SMITH J. C. PHILLIPS

A modified flash flood severity assessment is presented, based on scoring a set of factors according to their potential for generating extreme catchment-scale flooding. Improvements are made to the index through incorporation of parameter uncertainties, managing data absence, and clearer graphical communication. The motive for proposing these changes is to better inform flood managers during th...

Journal: :Journal of Physics: Conference Series 2019

2016
Alberto Viglione Bruno Merz Nguyen Viet Dung Juraj Parajka Thomas Nester Günter Blöschl

Changes in the river flood regime may be due to atmospheric processes (e.g., increasing precipitation), catchment processes (e.g., soil compaction associated with land use change), and river system processes (e.g., loss of retention volume in the floodplains). This paper proposes a new framework for attributing flood changes to these drivers based on a regional analysis. We exploit the scaling ...

2017
Siti Sarah Maidin Marini Othman Mohamad Nazir Ahmad Mohamad Nazir

Weakness in the governance component within a flood management system will jeopardize the works of the system as a whole. Specific to flood management, poor governance reflects weakness in tracking and monitoring of flood activities and systems, poor mitigation of flood risk, and non-optimal use of given (as well as investment) resources. This study proposes a governance framework to govern the...

Journal: :تحقیقات جغرافیایی 0
امیر گندمکار استادیار دانشگاه آزاد اسلامی واحد نجف آباد

heavy rains are one of the features of arid and semi arid climates which result in flood. this kind of rainfall originates from environmental and synoptic conditions. mediterranean cyclones are the major factor in heavy rainfall in iran, but these cyclones do not happen in some parts of iran such as southern and southeastern areas. in this study, it has been tried to pinpoint the synoptic reaso...

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