Rainfall And Flood Nowcasting In Small Catchments Using Weather Radar
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Rainfall And Flood Nowcasting In Small Catchments Using Weather Radar
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Author : Uwe Ehret
language : en
Publisher:
Release Date : 2003
Rainfall And Flood Nowcasting In Small Catchments Using Weather Radar written by Uwe Ehret and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2003 with Flood forecasting categories.
Flash Floods
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Author : Kevin Sene
language : en
Publisher: Springer Science & Business Media
Release Date : 2012-12-14
Flash Floods written by Kevin Sene and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2012-12-14 with Science categories.
Flash floods typically develop in a period a few hours or less and can arise from heavy rainfall and other causes, such as dam or flood defence breaches, and ice jam breaks. The rapid development, often associated with a high debris content, can present a considerable risk to people and property. This book describes recent developments in techniques for monitoring and forecasting the development of flash floods, and providing flood warnings. Topics which are discussed include rainfall and river monitoring, nowcasting, Numerical Weather Prediction, rainfall-runoff modelling, and approaches to the dissemination of flood warnings and provision of an emergency response. The book is potentially useful on civil engineering, water resources, meteorology and hydrology courses (and for post graduate studies) but is primarily intended as a review of the topic for a wider audience.
The Estimation Of Rainfall For Flood Forecasting Using Radar And Rain Gage Data
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Author : William J. Charley
language : en
Publisher:
Release Date : 1988
The Estimation Of Rainfall For Flood Forecasting Using Radar And Rain Gage Data written by William J. Charley and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1988 with Flood forecasting categories.
Weather Radar And Flood Forecasting
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Author : V. K. Collinge
language : en
Publisher:
Release Date : 1987
Weather Radar And Flood Forecasting written by V. K. Collinge and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1987 with Nature categories.
This unique, one-volume survey brings together the most up-to-date information available in this fast-moving field, presenting the current technologies and capabilities of weather radar for rainfall measurement and weather forecasting--emphasizing actual operational experience in the United Kingdom. Describes the developing weather radar networks in the UK and in Western Europe. Discussed at length are the hydrological aspects of flood forecasting. The authors then extend this study to specific problems of real-time flood forecasting, including the use of weather radar data. The presentation concludes with a section which explores the new directions in which weather radar technology is now moving and the ways in which the resulting data may be more effectively used for flood forecasting and other water management practices.
Hydrological Forecasting With Radar And The Probability Distributed Hydrological Model Pdm
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Author : Gbotemi Abraham Adediran
language : en
Publisher: Universal-Publishers
Release Date : 2015-07-01
Hydrological Forecasting With Radar And The Probability Distributed Hydrological Model Pdm written by Gbotemi Abraham Adediran and has been published by Universal-Publishers this book supported file pdf, txt, epub, kindle and other format this book has been release on 2015-07-01 with categories.
The efficiency of a probabilistic hydrological forecasting system with weather radar and the Probability distributed hydrological model (PDM) was evaluated at the Brue catchment; south-western England. The ability of the radar to measure gauged precipitation in 2007 (regarded as the ground truth) was evaluated using Normalized Bias (NB) and Normalized Error (NE) statistics as the objective function of evaluation. The radar overestimated precipitation measurements by average gauges with NB value of 0.41 and a considerably low NE of 0.68. Furthermore, the effectiveness of a Deterministic nowcasting system (DNS) to forecast radar measured precipitation at 132 forecast time series of 6hrs forecast lead time was assessed. The DNS overestimated the radar measured precipitation with a NB value of 87% and recorded an accumulated NE of 146%. Moreover, the efficiencies of 10 ensemble precipitation forecats generated from a Stochastic nowcasting system (SNS) over the singular deterministic forecasts from the DNS was evaluated at 3 major hydrological events. Some of the ensembles significantly performed better than the deterministic forecast and brilliantly captured the radar measured precipitation at most of the forecast time series. Furthermore, the efficiencies of these sources of precipitation measurement to simulate flows with the PDM at the Brue catchment were also assessed by integrating the radar-based forecasts with measurements from average gauges. The PDM performed satisfactorily well in simulating the flows of 17th January 2007 with an average Nash–Sutcliffe Efficiency Index (NSE) of 0.65 and the model was judged insensitive to the significantly high precipitation inputs for the hydrological event of 27th of May 2007. However, the PDM performed poorly in simulating flows for the historical storms of 20th of July 2007; with the model under estimating flows with bias value of over 250 cumecs for an event popular for its devastating flooding in the Southwest of England. The model inadequacies was however associated to poor radar precipitation measurements and forecasts on which flow simulation was based. This work therefore emphasis the need for developments in hydrological modeling as well as advancement in weather radar technology to effectively correct radar errors due to radar calibration, signal attenuation, clutter and anomalous propagation, vertical variation of reflectivity, range effects, Z-R relationships, variations of drop size distributions, vertical air motions, beam overshooting the shallow precipitation and sampling issues, that has been identified to affect radar measurements.
Echinoderms Munchen
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Author : Thomas Heinzeller
language : en
Publisher: CRC Press
Release Date : 2005-12-08
Echinoderms Munchen written by Thomas Heinzeller and has been published by CRC Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2005-12-08 with Science categories.
Since 1972, scientists from all over the world working on fundamental questions of echinoderm biology and palaeontology have conferred every three years to exchange current views and results. The 11th International Echinoderm Conference held at the University of Munich, Germany, from 6-10 October 2003,continued this tradition. This volume comprises 95 submitted papers and 96 abstracts covering a wide spectrum from innovative student contributions to the lessons learnt from experienced specialists. The content of the contributions ranges from original research results to the latest synopses concerning a variety of topics, including visual sensing, larval cloning, mutable collagenous tissues, sea urchin aqua-culture, deuterostome phylogeny, palaeobiology and taphonomy.
Precipitation Advances In Measurement Estimation And Prediction
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Author : Silas C. Michaelides
language : en
Publisher: Springer Science & Business Media
Release Date : 2008-02-27
Precipitation Advances In Measurement Estimation And Prediction written by Silas C. Michaelides and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2008-02-27 with Science categories.
This volume is the outcome of contributions from 51 scientists who were invited to expose their latest findings on precipitation research and in particular, on the measurement, estimation and prediction of precipitation. The reader is presented with a blend of theoretical, mathematical and technical treatise of precipitation science but also with authentic applications, ranging from local field experiments and country-scale campaigns to multinational space endeavors.
Weather Radar
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Author : Peter Meischner
language : en
Publisher: Springer Science & Business Media
Release Date : 2013-04-17
Weather Radar written by Peter Meischner and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2013-04-17 with Science categories.
With their images practically ubiquitious in the daily media, weather radar systems provide data not only for understanding weather systems and improving forecasts (especially critical for severe weather), but also for hydrological applications, flood warnings and climate research in which ground verification is needed for global precipitation measurements by satellites. This book offers an accessible overview of advanced methods, applications and modern research from the European perspective. An extensive introductory chapter summarizes the principles of weather radars and discusses the potential of modern radar systems, including Doppler and polarisation techniques, data processing, and error-correction methods. Addressing both specialist researchers and nonspecialists from related areas, this book will also be useful for graduate students planning to specialize in this field
Doppler Radar Observations
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Author : Joan Bech
language : en
Publisher: BoD – Books on Demand
Release Date : 2012-04-05
Doppler Radar Observations written by Joan Bech and has been published by BoD – Books on Demand this book supported file pdf, txt, epub, kindle and other format this book has been release on 2012-04-05 with Science categories.
Doppler radar systems have been instrumental to improve our understanding and monitoring capabilities of phenomena taking place in the low, middle, and upper atmosphere. Weather radars, wind profilers, and incoherent and coherent scatter radars implementing Doppler techniques are now used routinely both in research and operational applications by scientists and practitioners. This book brings together a collection of eighteen essays by international leading authors devoted to different applications of ground based Doppler radars. Topics covered include, among others, severe weather surveillance, precipitation estimation and nowcasting, wind and turbulence retrievals, ionospheric radar and volcanological applications of Doppler radar. The book is ideally suited for graduate students looking for an introduction to the field or professionals intending to refresh or update their knowledge on Doppler radar applications.
Flash Flood Forecasting Over Complex Terrain
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Author : National Research Council
language : en
Publisher: National Academies Press
Release Date : 2004-12-28
Flash Flood Forecasting Over Complex Terrain written by National Research Council and has been published by National Academies Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2004-12-28 with Science categories.
The nation's network of more than 130 Next Generation Radars (NEXRADs) is used to detect wind and precipitation to help National Weather Service forecasters monitor and predict flash floods and other storms. This book assesses the performance of the Sulphur Mountain NEXRAD in Southern California, which has been scrutinized for its ability to detect precipitation in the atmosphere below 6000 feet. The book finds that the Sulphur Mountain NEXRAD provides crucial coverage of the lower atmosphere and is appropriately situated to assist the Los Angeles-Oxnard National Weather Service Forecast Office in successfully forecasting and warning of flash floods. The book concludes that, in general, NEXRAD technology is effective in mountainous terrain but can be improved.