Models for the Aerosols of the Lower Atmosphere and the Effects of Humidity Variations on Their Optical Properties PDF Download
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Author: Eric P. Shettle
Publisher:
ISBN:
Category : Aerosols
Languages : en
Pages : 100
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Book Description
Aerosol models have been developed for the lower atmosphere. These models are representative of conditions found in rural, urban, and maritime air masses. The changes in the aerosol properties with variations in the relative humidity are discussed. To describe the aerosol optical properties in the extreme of 100 percent relative humidity, several fog models are presented. For each model the coefficients for extinction, scattering, and absorption, the angular scattering distribution, and other optical parameters have been computed for wavelengths between 0.2 and 40 microns. These aerosol models are presented together with a review of their experimental basis. The optical properties of these models are discussed and some comparisons of the model with experimental measurements are presented.
Author: Eric P. Shettle
Publisher:
ISBN:
Category : Aerosols
Languages : en
Pages : 100
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Book Description
Aerosol models have been developed for the lower atmosphere. These models are representative of conditions found in rural, urban, and maritime air masses. The changes in the aerosol properties with variations in the relative humidity are discussed. To describe the aerosol optical properties in the extreme of 100 percent relative humidity, several fog models are presented. For each model the coefficients for extinction, scattering, and absorption, the angular scattering distribution, and other optical parameters have been computed for wavelengths between 0.2 and 40 microns. These aerosol models are presented together with a review of their experimental basis. The optical properties of these models are discussed and some comparisons of the model with experimental measurements are presented.
Author: Claudio Tomasi
Publisher: John Wiley & Sons
ISBN: 3527336451
Category : Science
Languages : en
Pages : 706
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Book Description
Ein Blick auf die morphologischen, physikalischen und chemischen Eigenschaften von Aerosolen aus den unterschiedlichsten natürlichen und anthropogenen Quellen trägt zum besseren Verständnis der Rolle bei, die Aerosolpartikel bei der Streuung und Absorption kurz- und langwelliger Strahlung spielen. Dieses Fachbuch bietet Informationen, die sonst schwer zu finden sind, und vermittelt ausführlich die Kenntnisse, die erforderlich sind, um die mikrophysikalischen, chemischen und Strahlungsparameter zu charakterisieren, die bei der Wechselwirkung von Sonnen- und Erdstrahlen so überaus wichtig sind. Besonderes Augenmerk liegt auf den indirekten Auswirkungen von Aerosolen auf das Klima im Rahmen des komplexen Systems aus Aerosolen, Wolken und der Atmosphäre. Auch geht es vorrangig um die Wirkungen natürlicher und anthropogener Aerosole auf die Luftqualität und die Umwelt, auf die menschliche Gesundheit und unser kulturelles Erbe. Mit einem durchgängig lösungsorientierten Ansatz werden nicht nur die Probleme und Gefahren dieser Aerosole behandelt, sondern auch praktikable Lösungswege aufgezeigt.
Author: Pratim Biswas
Publisher: Walter de Gruyter GmbH & Co KG
ISBN: 3110729555
Category : Science
Languages : en
Pages : 224
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Book Description
Aerosol science and engineering is a vibrant field of particle technology and chemical reaction engineering. The book presents a timely account of this interdisciplinary topic and its various application areas. It will be of interest to scientists or engineers active in aerosol physics, aerosol or colloid chemistry, atmospheric processes, and chemical, mechanical, environmental and/or materials engineering.
Author: U.S. Air Force Geophysics Laboratory
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 218
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Book Description
Author: S. G. Jennings
Publisher: University of Arizona Press
ISBN: 9780816513628
Category : Science
Languages : en
Pages : 324
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Book Description
There is now a growing awareness that, in addition to the well publicized influence of carbon dioxide and other greenhouse gases on the warming of the earth's atmosphere, aerosol particles may also play an important role in forcing climate change. This volume brings together previously unavailable data and interpretative analyses, derived from studies in both the U.S. and U.S.S.R., which review, update, and assess aerosol-related climatic effects.
Author: Leonard Druyan
Publisher: BoD – Books on Demand
ISBN: 9535101358
Category : Science
Languages : en
Pages : 354
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Book Description
Climate Models offers a sampling of cutting edge research contributed by an international roster of scientists. The studies strive to improve our understanding of the physical environment for life on this planet. Each of the 14 essays presents a description of recent advances in methodologies for computer-based simulation of environmental variability. Subjects range from planetary-scale phenomena to regional ecology, from impacts of air pollution to the factors influencing floods and heat waves. The discerning reader will be rewarded with new insights concerning modern techniques for the investigation of the natural world.
Author: William O. Gallery
Publisher:
ISBN:
Category : Aerosols
Languages : en
Pages : 40
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Book Description
A series of broadband visible and infrared transmittance measurements made by EMI Ltd. over a 20 km sea path are compared to transmittances calculated by LOWTRAN 5. The purpose of the comparison is primarily to test the validity of the Maritime aerosol model in LOWTRAN under realistic conditions, and incidentally to test the molecular extinction in several window regions. The results of this comparison are the following: (a) the Maritime aerosol model provides a good description of aerosol extinction for conditions of a moderate wind blowing over the open ocean; (b) the calculated molecular extinction in the 8 to 12 micron region is accurate to within 7 percent in the log of the transmittance, although there is an indication the water vapor continuum absorption coefficient may be slightly too large; (c) the calculated molecular extinction in the 4.5 to 5.0 micron region is seriously underpredicted due to the lack of a water vapor continuum in this region.
Author:
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 440
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Book Description
Author: Marius Paulescu
Publisher: Springer Science & Business Media
ISBN: 1447146492
Category : Technology & Engineering
Languages : en
Pages : 364
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Book Description
In the past decade, there has been a substantial increase of grid-feeding photovoltaic applications, thus raising the importance of solar electricity in the energy mix. This trend is expected to continue and may even increase. Apart from the high initial investment cost, the fluctuating nature of the solar resource raises particular insertion problems in electrical networks. Proper grid managing demands short- and long-time forecasting of solar power plant output. Weather modeling and forecasting of PV systems operation is focused on this issue. Models for predicting the state of the sky, nowcasting solar irradiance and forecasting solar irradiation are studied and exemplified. Statistical as well as artificial intelligence methods are described. The efficiency of photovoltaic converters is assessed for any weather conditions. Weather modeling and forecasting of PV systems operation is written for researchers, engineers, physicists and students interested in PV systems design and utilization. “p>
Author: K. Grefen
Publisher: Springer Science & Business Media
ISBN: 9400929390
Category : Science
Languages : en
Pages : 652
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Book Description
The VDI Commission on Air Pollution Prevention - in cooperation with the German Meteorological Society - presents in this book the proceedings of the first International Symposium on "Environmental Meteorology", held in Wurzburg (West Germany) from 29 September to 1 October 1987. The primary goal was to get together scientists, experts of the meteorological services, specialists of environmental boards, and consulting engineers of the European countries. An equally important objective was to provide a bench mark document in the resulting proceedings publication. The 1987 symposium shall start a series of symposia on all fields of environmental meteorology to be held once in three or four years in one of the European countries. We are full of hope to come to an intense cooperation with the national meteorological and environmental societies in the countries with this concern. We like to express our sincere appreciation to the authors for their efforts and attention to the quality shown herein. The credit must be extended to the session Chairmen and to the advisory committee for the selection of the papers. We think the book contributes substantially to a better understanding of meteorology being the link between emission and deposition of atmospheric pollutants.
