A Numerical Study of Atmospheric Boundary Layer Dynamics Over Complex Terrain PDF Download
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Author: Nash'at Naveed Ahmad
Publisher:
ISBN:
Category : Atmospheric turbulence
Languages : en
Pages : 198
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Book Description
Author: Nash'at Naveed Ahmad
Publisher:
ISBN:
Category : Atmospheric turbulence
Languages : en
Pages : 198
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Book Description
Author: J. R. Garratt
Publisher: Cambridge University Press
ISBN: 9780521467452
Category : Mathematics
Languages : en
Pages : 340
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Book Description
The book gives a comprehensive and lucid account of the science of the atmospheric boundary layer (ABL). There is an emphasis on the application of the ABL to numerical modelling of the climate. The book comprises nine chapters, several appendices (data tables, information sources, physical constants) and an extensive reference list. Chapter 1 serves as an introduction, with chapters 2 and 3 dealing with the development of mean and turbulence equations, and the many scaling laws and theories that are the cornerstone of any serious ABL treatment. Modelling of the ABL is crucially dependent for its realism on the surface boundary conditions, and chapters 4 and 5 deal with aerodynamic and energy considerations, with attention to both dry and wet land surfaces and sea. The structure of the clear-sky, thermally stratified ABL is treated in chapter 6, including the convective and stable cases over homogeneous land, the marine ABL and the internal boundary layer at the coastline. Chapter 7 then extends the discussion to the cloudy ABL. This is seen as particularly relevant, since the extensive stratocumulus regions over the subtropical oceans and stratus regions over the Arctic are now identified as key players in the climate system. Finally, chapters 8 and 9 bring much of the book's material together in a discussion of appropriate ABL and surface parameterization schemes in general circulation models of the atmosphere that are being used for climate simulation.
Author: Marco Giovanni Giometto
Publisher:
ISBN:
Category :
Languages : en
Pages : 113
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Book Description
Mots-clés de l'auteur: anabatic flow ; direct numerical simulation ; dynamic surface roughness model ; energy budget ; immersed boundary method ; katabatic flow ; large-eddy simulation ; Prandtl model ; rough surfaces ; turbulence.
Author: Daniel Nadeau
Publisher:
ISBN:
Category :
Languages : en
Pages : 99
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Book Description
Author: Massimiliano Burlando
Publisher:
ISBN:
Category :
Languages : en
Pages : 192
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Book Description
Author: Eric Richard Pardyjak
Publisher:
ISBN:
Category : Atmospheric circulation
Languages : en
Pages : 410
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Book Description
Author: Demetri P Lalas
Publisher: World Scientific
ISBN: 9814602833
Category :
Languages : en
Pages : 768
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Book Description
This volume is a collection of lectures given at the two colloquia on atmospheric flows over complex terrain with applications to wind energy and air pollution, organized and sponsored by ICTP in Trieste, Italy. The colloquia were the result of the recognition of the importance of renewable energy sources, an important aspect which grows yearly as the environmental problems become more pronounced and their effects more direct and intense, while at the same time, the wise management of the Earth's evidently limited resources becomes imperative.It is divided into two main parts. The first, which comprises Chaps. 1 to 4, presents the structure of the atmospheric boundary layer with emphasis in the region adjacent to the ground. The second, Chaps. 5 to 10, discusses methods for the numerical computation of the wind field on an arbitrary terrain. The unique feature of this book is that it does not stop at the theoretical exposition of the analytical and numerical techniques but includes a number of codes, in a diskette, where the mechanisms and techniques presented in the main part are implemented and can be run by the reader. Some of the codes are of instructional value while others can be utilized for simple operational work.Some of the lecturers are: D N Asimakopoulos, C I Aspliden, V R Barros, A K Blackadar, G A Dalu, A de Baas, D Etling, G Furlan, D P Lalas, P J Mason, C F Ratto and F B Smith.
Author: William Peter Kustas
Publisher:
ISBN:
Category : Boundary layer (Meteorology)
Languages : en
Pages : 336
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Book Description
Author: William Blumen
Publisher: Springer
ISBN: 1935704257
Category : Science
Languages : en
Pages : 331
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Book Description
The objectives of the American Meteorological Society are "the development and dissemination of knowledge of meteorology in all its phases and applications, and the advancement of its professional ideals." The organization of the Society took place in affiliation with the American Association for the Advancement of Science at Saint Louis, Missouri, December 29, 1919, and its incorporation, at Washington, D. C., January 21, 1920. The work of the Society is carried on by the Bulletin, the Journal, and Meteorological Monographs, by papers and discussions at meetings of the Society, through the offices of the Secretary and the Executive Secretary, and by correspondence. All of the Americas are represented in the membership of the Society as well as many foreign countries.
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages :
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Book Description
A three-dimensional numerical model previously developed to simulate an airflow over complex terrain has been extended to simulate a pollutant dispersion over the same topographic condition. This study is limited to an advective case, i.e., modification of the inflow concentration profile by the air motion greatly disturbed by the underlying topograpy. The pollutant is considered to be passive and nonreactive. Emissions of pollutants are not considered, but pollutant deposition at the surface is included. Dilution of pollutants due to the vertical motion resulting from divergence and convergence of the horizontal wind over the rugged terrain is an item of major interest. A pollutant advected through the inflow boundary experiences the greatest reduction in concentration (by approximately 50%) in the region directly above the downslope of the mountain. This is mainly due to mixing with clean air which is transported downward by subsidence. concentration in the surface layer downwind of the mountain is considerably greater for the unstable case than for the stable case. This is due to the fact that higher concentrations in the layer directly above have been transported downward by turbulent mixing. Thus, fumigation appears to be properly simulated. The model is being modified to include solar radiation in order to produce diurnal variations of the airflow. It is intended to test the simulation against observations in the near future.
