A Gust Front Case Studies Handbook
Author | : Diana Lynn Klingle |
Publisher | : |
Total Pages | : 108 |
Release | : 1985 |
Genre | : |
ISBN | : |
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Author | : Diana Lynn Klingle |
Publisher | : |
Total Pages | : 108 |
Release | : 1985 |
Genre | : |
ISBN | : |
Author | : Diana Lynn Klingle |
Publisher | : |
Total Pages | : 96 |
Release | : 1985 |
Genre | : |
ISBN | : |
Gust fronts produce low altitude wind shear that can be hazardous to aircraft operations, especially during takeoff and landing. Radar meteorologists have long been able to identify gust front signatures in Doppler radar data, but in order to use the radars efficiently, automatic detection of such hazards is essential. Eight gust front case studies are presented. The data include photographs of the Doppler weather radar displays, thermodynamic and wind measurements from a 440 m high tower, environmental soundings and tables of gust front characteristics. The tabulated characteristics are those though to be the most important in developing rules for automatic gust front detection such as length and height, maximum and minimum values of reflectivity, velocity and spectrum width, and estimates of radial shear. For the cases studied, outflows could be detected most reliably in the velocity field, but useful information also could be gleaned from the spectrum width and reflectivity fields. The signal-to-noise ratio threshold was found to be a major factor in the ability of an observer to discern the gust front signature in the Doppler radar displays. Detection within the spectrum width field required a higher SNR than did the radial velocity field. Keywords: Doppler Weather Radar; Gust fronts; Low altitude wind shear; and Aviation weather hazards.
Author | : United States. National Weather Service |
Publisher | : |
Total Pages | : 662 |
Release | : 19?? |
Genre | : Weather forecasting |
ISBN | : |
Author | : |
Publisher | : |
Total Pages | : 932 |
Release | : 1987 |
Genre | : Meteorology |
ISBN | : |
Author | : |
Publisher | : |
Total Pages | : 610 |
Release | : 1989 |
Genre | : Electronics |
ISBN | : |
Author | : |
Publisher | : |
Total Pages | : 456 |
Release | : 1986 |
Genre | : Meteorology |
ISBN | : |
Author | : Harindra Joseph Fernando |
Publisher | : CRC Press |
Total Pages | : 1197 |
Release | : 2012-12-11 |
Genre | : Science |
ISBN | : 1466591145 |
With major implications for applied physics, engineering, and the natural and social sciences, the rapidly growing area of environmental fluid dynamics focuses on the interactions of human activities, environment, and fluid motion. A landmark for the field, this two-volume handbook presents the basic principles, fundamental flow processes, modeling techniques, and measurement methods used in the field, along with critical discussions of environmental sustainability related to engineering aspects. The first volume provides a comprehensive overview of the fundamentals, and the second volume explores the interactions between engineered structures and natural flows.
Author | : Horia Hangan |
Publisher | : Oxford University Press |
Total Pages | : 645 |
Release | : 2021 |
Genre | : Science |
ISBN | : 0190670258 |
"Wind storms impact human lives, their built as well as natural habitat. During the last century, society's vulnerability to wind storms has been reduced by enhanced knowledge of their impact and by controlling exposure through better design. However, only two of the wind systems have so far been considered in the design of buildings and structures, i.e., synoptic winds resulting from macroscale weather systems spanning thousands of kilometers, e.g., extratropical storms, and mesoscale tropical storms spanning hundreds of kilometers and traveling fast, e.g., hurricanes/typhoons/cyclones. During the last two decades, enough evidence has surfaced to support that a third type of very localized wind storms, the non-synoptic winds, are the most damaging in some regions of the world. Thus far there are no design provisions established for the codification of these wind storms. Their characterization in terms of climatology, wind field and intensity, frequency and occurrence, as well as their impact on the built environment, is slowly developing. This handbook presents the state-of-the-art of knowledge related to all these features including their risk, insurance issues, and economics. The research in this area is on the one hand more arduous given the reduced scale, the three-dimensionality, and nonstationary aspects of these non-synoptic winds while, at the same time, its understanding and modeling are being aided by the emergence of novel modeling and simulation techniques which are addressed in this handbook. This will serve as a guiding resource for those interested in learning about and contributing to the advancement of the field"--
Author | : Harindra Joseph Fernando |
Publisher | : CRC Press |
Total Pages | : 591 |
Release | : 2012-12-12 |
Genre | : Science |
ISBN | : 1466556013 |
With major implications for applied physics, engineering, and the natural and social sciences, the rapidly growing area of environmental fluid dynamics focuses on the interactions of human activities, environment, and fluid motion. A landmark for the field, the two-volume Handbook of Environmental Fluid Dynamics presents the basic principles, fundamental flow processes, modeling techniques, and measurement methods used in the study of environmental motions. It also offers critical discussions of environmental sustainability related to engineering. The handbook features 81 chapters written by 135 renowned researchers from around the world. Covering environmental, policy, biological, and chemical aspects, it tackles important cross-disciplinary topics such as sustainability, ecology, pollution, micrometeorology, and limnology. Volume Two: Systems, Pollution, Modeling, and Measurements explores the interactions between engineered structures and anthropogenic activities that affect natural flows, with particular emphasis on environmental pollution. The book covers the numerical methodologies that underpin research, predictive modeling, and cyber-infrastructure developments. It also addresses practical aspects of laboratory experiments and field observations that validate quantitative predictions and help identify new phenomena and processes. As communities face existential challenges posed by climate change, rapid urbanization, and scarcity of water and energy, the study of environmental fluid dynamics becomes increasingly relevant. This volume is a valuable resource for students, researchers, and policymakers working to better understand environmental motions and how they affect and are influenced by anthropogenic activities. See also Handbook of Environmental Fluid Dynamics, Two-Volume Set and Volume One: Overview and Fundamentals.