Radar And The Atmosphere

Author: Alfred J. Bogush
Editor: Artech House Radar Library (Ha
ISBN:
File Size: 35,35 MB
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Atmospheric Radar

Author: Wayne K. Hocking
Editor: Cambridge University Press
ISBN: 1107147468
File Size: 27,81 MB
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The first book to bring together the theory, design and applications of atmospheric radar systems.

Radar Observation Of The Atmosphere

Author: Louis J. Battan
Editor:
ISBN: 9780608093826
File Size: 43,56 MB
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Radar Observation Of The Atmosphere

Author: Louis J. Battan
Editor:
ISBN:
File Size: 64,28 MB
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Atmospheric Effects On Radar Target Identification And Imaging

Author: H. Jeske
Editor: Springer
ISBN: 9789401015332
File Size: 19,71 MB
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The Advanced Study Institute (ASI) under discussion was initiated by the "Special Programme Panel on Radio meteorology" of the Scientific Affairs Division of NATO. The domain of this panel - and consequently the topics of their former ASI-~rogrammes - is the influ ence of the non-ionized atmosphere on electromagnetic wave propagation, its prediction and its use as a re mote sensing technique. It is the final goal to inform radio and radar engineers about the various defects caused by the propagation medium atmosphere. Today there exist high-sensitive radar systems which can pro vide identification and produce images of distant ob jects very accurately by measuring a) the effect of the target on the shape of a short radar pulse, or b) the wave front (phase and amplitude distribution) and its orientation in space. But usuallv the radar-to-target path is through the inhomogeneous and turbulent atmo sphere and so the absolut limits of the system are very often determined by this atmosphere. It was the plan of this ASI to arrange an interdisciplinary information exchange between radar experts and propagation specia lists in order to get a better understanding of the susceptibility to atmospheric effects and to develope new methods that will reduce or correct these errors. The lectures given and especially the intensive dis cussions during the workshop sessions contributed to this aim.

Atmospheric Effects On Radar Target Identification And Imaging

Author: H. Jeske
Editor: Springer Science & Business Media
ISBN: 9401015317
File Size: 45,49 MB
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The Advanced Study Institute (ASI) under discussion was initiated by the "Special Programme Panel on Radio meteorology" of the Scientific Affairs Division of NATO. The domain of this panel - and consequently the topics of their former ASI-~rogrammes - is the influ ence of the non-ionized atmosphere on electromagnetic wave propagation, its prediction and its use as a re mote sensing technique. It is the final goal to inform radio and radar engineers about the various defects caused by the propagation medium atmosphere. Today there exist high-sensitive radar systems which can pro vide identification and produce images of distant ob jects very accurately by measuring a) the effect of the target on the shape of a short radar pulse, or b) the wave front (phase and amplitude distribution) and its orientation in space. But usuallv the radar-to-target path is through the inhomogeneous and turbulent atmo sphere and so the absolut limits of the system are very often determined by this atmosphere. It was the plan of this ASI to arrange an interdisciplinary information exchange between radar experts and propagation specia lists in order to get a better understanding of the susceptibility to atmospheric effects and to develope new methods that will reduce or correct these errors. The lectures given and especially the intensive dis cussions during the workshop sessions contributed to this aim.

Radar Meteorology

Author: Robert M. Rauber
Editor: John Wiley & Sons
ISBN: 1118432622
File Size: 27,61 MB
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A comprehensive introduction to the current technology and application of radar in meteorology and atmospheric sciences Written by leading experts in the field, Radar Meteorology, A first Course offers an introduction to meteorological radar systems and applications, with emphasis on observation and interpretation of physical processes in clouds and weather systems. This comprehensive introduction to the subject offers an overview of the quantities essential to radar meteorology including the radar reflectivity factor, and Doppler, dual-polarization, and multi-wavelength radar variables. The authors highlight wind retrieval from single and multiple Doppler radars, precipitation estimation and hydrometeorological applications, with chapters dedicated to interpretation of radar data from warm season mid-latitude severe weather, winter storms, tropical cyclones and more. In addition, Radar Meteorology highlights research applications of this burgeoning technology, exploring dynamic applications such as space-borne and ground-based vertically pointing radar systems, and cloud, airborne and mobile radars. As meteorological radars are increasingly used professionally for weather observation, forecasting and warning, this much-needed text: • Presents an introduction to the technical aspects and current application of radar as used in the meteorology and atmospheric sciences • Contains full-colour illustrations that enhance the understanding of the material presented • Examines the wide-range of meteorological applications of radar • Includes problems at the end of each chapter as a helpful review of the contents • Provides full instructor support with all illustrations and answers to problems available via the book’s instructor website. Radar Meteorology offers a much-needed introductory text to the study of radar as applied to meteorology. The text was designed for a one semester course based on the authors’ own course in Radar Meteorology at the University of Illinois at Urbana-Champaign.

Optical Radar Detection Of Scattering Layers In The Atmosphere

Author: Robert Joseph Fox
Editor:
ISBN:
File Size: 19,67 MB
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A Study Of Radar Aspect Sensitivity In The Lower Atmosphere

Author: Charlie Yann-Ting Chen
Editor:
ISBN:
File Size: 63,29 MB
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Finally, we show that the measured potential temperature steps and the structures seen in a direct numerical simulation (DNS) of a Kelvin-Helmholtz instability (KHI) are remarkably similar. Not only do we find good agreement between the observation and the simulation; the similarity is also seen in the wavelet spectrum, which is the behavior of the wavelet coefficient as a function of scale size. We extend the results from experimental observations and numerical simulation by predicting the characteristic radar backscatter and show that it is consistent with observations.

Radar Observation Of The Atmosphere

Author: Louis J. Battan
Editor:
ISBN: 9780608209968
File Size: 53,86 MB
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The Analysis And Forecasting Of Atmospheric Radar Refractivity

Author: United States. Naval Weather Service Command
Editor:
ISBN:
File Size: 58,98 MB
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A Conceptual Framework For Using Doppler Radar Acquired Atmospheric Data For Flight Simulation

Author: Warren Campbell
Editor:
ISBN:
File Size: 42,13 MB
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Radar And Atmospheric Science

Author: Roger Wakimoto
Editor: Springer
ISBN: 1878220365
File Size: 30,74 MB
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This book if a tribute to one of the leading scientists in meteorology, Dr. David Atlas. It was written by a group of specialists and presented at a symposium to honor Dr. Atlas’ life and career as meteorologist. It serves as a comprehensive resource for scientists and educators, and also as an inspiring historical record of scientific research and important discoveries in the field of meteorology.

Radar Meteorology

Author: S. Raghavan
Editor: Springer Science & Business Media
ISBN: 9401702012
File Size: 31,25 MB
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As we all know, weather radar came into existence during the Second World War when aircraft detection radars had their vision limited by echoes from rain bearing clouds. What was often considered to be of nuisance value by the air force personnel trying to locate enemy aircraft was seen as an opportunity by the weather men. Thus adversity in one field was converted into an opportunity in another. Since then weather radar has found myriad applications with the increased sophistication of technology and processing systems. It has now become an indispensable tool for the operational forecasters, cloud physicists and atmospheric scientists. The current generation radar is but a distant echo of the radars of the 1940s. As a result, its operation and maintenance have become very complex, like the technology it uses. Therefore, there is a definite requirement of focussing our special attention not only on the science of radar meteorology but also on its operational aspects. The present book, as pointed out by the author, attempts to fill this gap. The author has presented the subject with a balanced blend of science, technology and practice. The canvas is indeed very broad. Starting with the history of weather radar development the book goes on to discuss in a lucid style the physics of the atmosphere related to radar observation, radar technology, echo interpretation, different applications and finally attempts to look into the future to indicate potential new opportunities in this field.

Curves Of Atmospheric Absorption Loss For Use In Radar Range Calculation

Author: L. V. Blake
Editor:
ISBN:
File Size: 15,97 MB
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High Resolution Tropospheric Studies With An Mst Type Radar

Author: Marcial Garbanzo-Salas
Editor:
ISBN:
File Size: 28,38 MB
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Applications and results of a variety of studies carried out with the Costa Rican VHF profiler radar are included. This radar is unique because of the wide frequency bandwidth available (5 MHz). During the developing stages of the wind profiler radar new techniques of processing and radar engineering were used. A thorough analysis of a data-dependent method (Capon's) commonly used in radar was carried out. This method is analyzed based on a reference established by Fourier theory. Disadvantages of using data-dependent methods with small filters were found. A small filter size will cause Capon's method to underestimate the number of spectral peaks when compared to using a larger filter size. The understimation will occur even when the filter size is larger than the number of peaks. When used to estimate a known Gaussian spectrum, Capon's method understimated the spectral width independently of the filter size. The backscattered signal measured in radars is the convolution of the transmitted signal with the atmospheric profile of scatterers. The convolution integral model was used to calculate radar backscatter. The implementations were created to simulate radar backscatter using the transmitted signal and the electric permittivity profile of the atmosphere. Tests with realistic physical conditions were carried out to validate the model and verify the implementation. Appropriate range location and Doppler velocites were obtained from simple simulations in one, two and three dimensions. The convolution engine was later used along with a mathematical representation of atmospheric scatterers to study the simulated radar echoes. Correct radial velocites were obtained along with realistic radar e ect like the beam broadening e ect. A Large eddy simulation (LES) model was used to simulate a full-physics atmosphere. The LES code follows the fluid dynamics equations. The simulated LES atmosphere was used to calculate the electric permittivity from atmospheric variables. A radar simulation involving the convolution of this electric permittivity profile and the radar pulse allowed us to simulate a radar inside the simulated atmosphere. The initial conditions of the simulation created a clear planetary boundary layer as well as a region of shear instabilities in the upper heights. Both regions generated turbulence during the simulation and allowed the radar simulation to measure it satisfactorily. Anisotropy was observed in the results when comparing vertical beam data to tilted beam data as usually observed in real measurements. A long term experiment was carried out in Costa Rica to gather information about the tropical atmosphere. This was the first time this type of experiment was carried out in Costa Rica. The information provided a clear perspective of the phenomena found in the lower troposphere. Among others, the planetary boundary layer (PBL), thin layers, isolated patches of turbulence, oscillations and convective events were detected. The presence of layers over Costa Rica is well defined; during the dry season months (winter-spring time of the northern hemisphere) at least one layer can be observed up to 30% of the time, while it decreases below 10% of the time during the rainy season (summer-fall time of the northern hemisphere). The PBL shows great variability depending on the general conditions of the atmosphere; the average PBL top was located near 2 km during the dry season months and increased to almost 4 km during the rainy season. More examples are provided.

Middle Atmosphere Program International School On Atmospheric Radar

Author:
Editor:
ISBN:
File Size: 47,43 MB
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