Polarimetric Weather Radar
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Polarimetric Doppler Weather Radar
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Author : V. N. Bringi
language : en
Publisher: Cambridge University Press
Release Date : 2001-08-30
Polarimetric Doppler Weather Radar written by V. N. Bringi and has been published by Cambridge University Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2001-08-30 with Science categories.
This 2001 book provides a detailed introduction to the principles of Doppler and polarimetric radar, focusing in particular on their use in the analysis of weather systems. The design features and operation of practical radar systems are highlighted throughout the book in order to illustrate important theoretical foundations. The authors begin by discussing background topics such as electromagnetic scattering, polarization, and wave propagation. They then deal in detail with the engineering aspects of pulsed Doppler polarimetric radar, including the relevant signal theory, spectral estimation techniques, and noise considerations. They close by examining a range of key applications in meteorology and remote sensing. The book will be of great use to graduate students of electrical engineering and atmospheric science as well as to practitioners involved in the applications of polarimetric radar systems.
Weather Radar Polarimetry
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Author : Guifu Zhang
language : en
Publisher: CRC Press
Release Date : 2016-08-19
Weather Radar Polarimetry written by Guifu Zhang and has been published by CRC Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2016-08-19 with Science categories.
This book presents the fundamentals of polarimetric radar remote sensing through understanding wave scattering and propagation in geophysical media filled with hydrometers and other objects. The text characterizes the physical, statistical, and electromagnetic properties of hydrometers and establishes the relations between radar observables and physical state parameters. It introduces advanced remote sensing techniques (such as polarimetric phased array radar) and retrieval methods for physical parameters. The book also illustrates applications of polarimetric radar measurements in hydrometer classification, particle size distribution retrievals, microphysical parameterization, and weather quantification and forecast.
Radar Polarimetry For Weather Observations
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Author : Alexander V. Ryzhkov
language : en
Publisher: Springer
Release Date : 2019-03-25
Radar Polarimetry For Weather Observations written by Alexander V. Ryzhkov and has been published by Springer this book supported file pdf, txt, epub, kindle and other format this book has been release on 2019-03-25 with Science categories.
This monograph offers a wide array of contemporary information on weather radar polarimetry and its applications. The book tightly connects the microphysical processes responsible for the development and evolution of the clouds’ bulk physical properties to the polarimetric variables, and contains the procedures on how to simulate realistic polarimetric variables. With up-to-date polarimetric methodologies and applications, the book will appeal to practicing radar meteorologists, hydrologists, microphysicists, and modelers who are interested in the bulk properties of hydrometeors and quantification of these with the goals to improve precipitation measurements, understanding of precipitation processes, or model forecasts.
Introduction To Dual Polarization Weather Radar
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Author : V. Chandrasekar
language : en
Publisher: Cambridge University Press
Release Date : 2023-08-31
Introduction To Dual Polarization Weather Radar written by V. Chandrasekar and has been published by Cambridge University Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2023-08-31 with Nature categories.
An interdisciplinary, easy-to-understand introduction, covering fundamental theory and practical applications. Featuring numerous operational examples, and interpretation of radar observations, this is a perfect resource for scientists and engineers working on or with radars, as well as senior undergraduate and graduate students.
Design Of A High Resolution X Band Doppler Polarimetric Weather Radar
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Author : Jordi Figueras I Ventura
language : en
Publisher:
Release Date : 2009
Design Of A High Resolution X Band Doppler Polarimetric Weather Radar written by Jordi Figueras I Ventura and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2009 with categories.
Propagation Effects Influencing Polarimetric Weather Radar Measurements
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Author : Tobias Otto
language : en
Publisher:
Release Date : 2011
Propagation Effects Influencing Polarimetric Weather Radar Measurements written by Tobias Otto and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2011 with categories.
Radar Polarimetry For Weather Observations
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Author : Aleksandr Vasilʹevich Ryzhkov
language : en
Publisher:
Release Date : 2019
Radar Polarimetry For Weather Observations written by Aleksandr Vasilʹevich Ryzhkov and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2019 with Electronic books categories.
This monograph offers a wide array of contemporary information on weather radar polarimetry and its applications. The book tightly connects the microphysical processes responsible for the development and evolution of the clouds' bulk physical properties to the polarimetric variables, and contains the procedures on how to simulate realistic polarimetric variables. With up-to-date polarimetric methodologies and applications, the book will appeal to practicing radar meteorologists, hydrologists, microphysicists, and modelers who are interested in the bulk properties of hydrometeors and quantification of these with the goals to improve precipitation measurements, understanding of precipitation processes, or model forecasts.
Spectral Analysis Of Polarimetric Weather Radar Data With Multiple Processes In A Resolution Volume
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Author :
language : en
Publisher:
Release Date : 2007
Spectral Analysis Of Polarimetric Weather Radar Data With Multiple Processes In A Resolution Volume written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2007 with categories.
A new approach for the clear air velocity estimation in weather radar is presented. A combination of nonparametric with parametric spectral analyses allows us to identify and extract multiple processes caused by different scatterer types within a single radar resolution volume. An example of clear air observed using an S-band dual polarization radar is presented. Heretofore, migrating birds and wind-blown insects that are mixed within each resolution volume caused such data to be unusable for meteorological interpretation. In this paper, we construct power spectral densities of polarimetric variables. We use the polarimetric spectral densities to differentiate the scatterer types within the observed radar resolution volume. We demonstrate how our combination of non-parametric and parametric spectral analysis can be used to retrieve the true wind velocity in situations with severe contamination by biological scatterers.
Mobile High Resolution X Band Polarimetric Doppler Weather Radar Measurements Xpol Evaluation And Application
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Author : Marios N Anagnostou
language : en
Publisher:
Release Date : 2006
Mobile High Resolution X Band Polarimetric Doppler Weather Radar Measurements Xpol Evaluation And Application written by Marios N Anagnostou and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2006 with Electronic dissertations categories.
This Ph.D dissertation focuses on applications of a mobile high resolution X-band polarimetric Doppler weather radar observations in quantitative rainfall and microphysical estimation. X-band tends to be an attractive radar frequency for hydrologists and hydrometeorologists who are more interesting in high-resolution measurements over small watersheds. However, the drawback with X-band radar is severe attenuation of the electromagnetic signal in significant rainfall, which affects the radar observations and introduces errors in rainfall estimation. The major advantage of the polarimetric weather radar is that it has the ability to transmit and receive both horizontal and vertical polarization. This capability introduces two radar measurements apart from the horizontal reflectivity (ZH). These are the differential reflectivity (ZDR), which is the ratio of horizontal (H) to vertical (V) polarization and the differential phase shift (ΦDP), which is the difference in phase between the H and V polarization signals. This additional information helps to increase the correlation (r 2 > 0.95) between attenuation-corrected (National Observatory of Athens X-band polarimetric) XPOL versus the non-attenuated ZH and ZDR X-band parameters derived from (NCAR S-band polarimetric radar) S-Pol. Error statistics show that the selected algorithm with the least systematic error than the other methods and axial ratio models, converge to below 10% (50%) at path integrated attenuation (differential PIA) values greater than 10 dB (2.5 dB). Overall, the combined uncertainty in the estimation of specific and differential attenuation parameters represent about 28% (in ZH) and 38% (in ZDR). The first part of this thesis focuses on the development of an algorithm that corrects for rain-path attenuation. The second part of this thesis describes a methodology that estimates drop size distribution (DSD) from the attenuation-corrected radar measurements. Two algorithms that estimate the three-parameter 'normalized' Gamma DSD model are developed for X-band radar polarimetric observations and compared against S-Pol radar and disdrometer spectra observations. The constrained-gamma method is so named because of the constrained Î1⁄4-Λ relation and the "Î2" beta is so named because of the estimation of the mean axis ratio of drops. From the statistical analysis and comparisons of disdrometer spectra observations and S-Pol DSD retrievals, it is found that the Î2-method introduces errors from the use of KDP, while the constrained-method works reasonably well at low and high rain rates and provides relatively accurate retrieval of the DSD parameters. Error statistics show that the Î2-method introduces an additional 20% and 30% error in NW and Î1⁄4 while for the estimation of D 0 both algorithms have similar performance.
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