Atmospheric Aerosol Scattering Background Observations

Atmospheric Aerosol Scattering Background Observations PDF Author: Frank W. Gibson
Publisher:
ISBN:
Category : Aerosols
Languages : en
Pages : 42

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Book Description
Optical scattering, under very clear atmospheric conditions, was measured in situ and analyzed. The experiments were made with a large balloonborne nephelometer launched from Holloman AFB, New Mexico and flown to 26 km altitude. Profiles of angular scattering and polarization properties of atmospheric aerosols show contrast with aerosol particles encountered in the troposphere and stratosphere. The results are compared with those obtained using particle counters under similar atmospheric conditions.

Atmospheric Aerosol Scattering Background Observations

Atmospheric Aerosol Scattering Background Observations PDF Author: Frank W. Gibson
Publisher:
ISBN:
Category : Aerosols
Languages : en
Pages : 42

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Book Description
Optical scattering, under very clear atmospheric conditions, was measured in situ and analyzed. The experiments were made with a large balloonborne nephelometer launched from Holloman AFB, New Mexico and flown to 26 km altitude. Profiles of angular scattering and polarization properties of atmospheric aerosols show contrast with aerosol particles encountered in the troposphere and stratosphere. The results are compared with those obtained using particle counters under similar atmospheric conditions.

Atmospheric Aerosol Scattering Background Observations

Atmospheric Aerosol Scattering Background Observations PDF Author:
Publisher:
ISBN:
Category : Aerosols
Languages : en
Pages : 34

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Book Description
Optical scattering, under very clear atmospheric conditions, was measured in situ and analyzed. The experiments were made with a large balloonborne nephelometer launched from Holloman AFB, New Mexico and flown to 26 km altitude. Profiles of angular scattering and polarization properties of atmospheric aerosols show contrast with aerosol particles encountered in the troposphere and stratosphere. The results are compared with those obtained using particle counters under similar atmospheric conditions.

Atmospheric Aerosol Scattering Background Observations

Atmospheric Aerosol Scattering Background Observations PDF Author: Frank W. Gibson
Publisher:
ISBN:
Category : Aerosols
Languages : en
Pages : 44

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Book Description


Atmospheric Aerosols: Their Optical Properties and Effects

Atmospheric Aerosols: Their Optical Properties and Effects PDF Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 348

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Book Description


Atmospheric Aerosol Observations with Searchlight Probing

Atmospheric Aerosol Observations with Searchlight Probing PDF Author: Louis Elterman
Publisher:
ISBN:
Category : Aerosols
Languages : en
Pages : 18

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Book Description


Aerosol Optics

Aerosol Optics PDF Author: Alexander A. Kokhanovsky
Publisher: Springer Science & Business Media
ISBN: 3540499091
Category : Science
Languages : en
Pages : 154

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Book Description
This new text offers experienced students a comprehensive review of available techniques for the remote sensing of aerosols. These small particles influence both atmospheric visibility and the thermodynamics of the atmosphere. They are also of great importance in any consideration of climate change problems. Aerosols may also be responsible for the loss of harvests, human health problems and ecological disasters. Thus, this detailed study of aerosol properties on a global scale could not be more timely.

An Analysis of the Atmospheric Aerosol Size Distribution Information Retrievable from Near-limb Angular Radiance Measurements Taken on Mauna Loa, Hawaii

An Analysis of the Atmospheric Aerosol Size Distribution Information Retrievable from Near-limb Angular Radiance Measurements Taken on Mauna Loa, Hawaii PDF Author: Keith Eric Grant
Publisher:
ISBN:
Category :
Languages : en
Pages : 330

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Book Description


Aerosol Technology

Aerosol Technology PDF Author: William C. Hinds
Publisher: John Wiley & Sons
ISBN: 1118591976
Category : Technology & Engineering
Languages : en
Pages : 411

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Book Description
The #1 guide to aerosol science and technology -now better than ever Since 1982, Aerosol Technology has been the text of choice among students and professionals who need to acquire a thorough working knowledge of modern aerosol theory and applications. Now revised to reflect the considerable advances that have been made over the past seventeen years across a broad spectrum of aerosol-related application areas - from occupational hygiene and biomedical technology to microelectronics and pollution control -this new edition includes: * A chapter on bioaerosols * New sections on resuspension, transport losses, respiratory deposition models, and fractal characterization of particles * Expanded coverage of atmospheric aerosols, including background aerosols and urban aerosols * A section on the impact of aerosols on global warming and ozone depletion. Aerosol Technology, Second Edition also features dozens of new, fully worked examples drawn from a wide range of industrial and research settings, plus new chapter-end practice problems to help readers master the material quickly.

The Dependence of Aerosol Scattering on Relative Humidity and Particulate Composition

The Dependence of Aerosol Scattering on Relative Humidity and Particulate Composition PDF Author: Wiesje Mooiweer
Publisher: ProQuest
ISBN: 9781109180466
Category : Atmospheric aerosols
Languages : en
Pages : 182

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Book Description
Particulates that form the atmospheric aerosol play a significant role in determining Earth's climate, both directly through scattering and absorption of solar radiation, and indirectly by impacting cloud formation processes. They are present in a large range of sizes, concentrations, chemical compositions, and compositional inhomogeneities, complicating our ability to quantify the aerosol's direct and indirect effects. This work investigates the dependence of aerosol light scattering on relative humidity (RH) and chemical composition, and the effect of organic material on scattering enhancement and implied particle growth characteristics. It utilizes measurements carried out in the Elk Mountain/Laramie Aerosol Characterization Experiment (EMLACE), in which observations were made at both a clean high-altitude mid-continental site (Elk Mountain, WY) in summer (2006), and in a small urban environment (Laramie, WY) during both summer (2005) and winter (2006). High time resolution measurements of scattering extinction from both dry and humidified PM 1 aerosols were obtained together with time resolved measurements of PM 1 volatile aerosol chemical composition and mass loading. Variabilities in particle chemical composition and optical behavior with location and season are documented. Scattering extinction is positively correlated with aerosol mass loading. Enhanced scattering, due to water uptake by the particles at high RH, is described by a scattering enhancement factor (f(RH)), which is found to be smaller with increasing mass fraction of organic material. Observed f(RH) values are interpreted in terms of mass weighted contributions (f(RH high) Inorg and f(RH high) Org) from the particulate inorganic and organic material at high RH. Analyses show that whereas f(RH high) Inorg varies continually, depending on the physical and chemical properties of the aerosol, the experimental data can, in general, be adequately interpreted using a value of 1.0 for f(RH high) Org (though values up to 1.1 are occasionally indicated), suggesting that organic material does not significantly promote increased scattering at high RH. Numerical values of f(RH high) Inorg and f(RH high) Org were used to develop an empirical parameterization of changes in aerosol optical properties with increasing RH, based solely on variations in particulate chemical composition. This parameterization successfully reconstructs variations in f(RH) for the observed ambient aerosols over the entire range of RH values employed in the experiments.

Atmospheric Aerosols

Atmospheric Aerosols PDF 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.