Download or read book Scavenging of Atmospheric Particles by Water Drops written by Ming-Shian Wu and published by . This book was released on 1973 with total page 70 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book A Theoretical and Experimental Study on the Scavenging of Aerosol Particles by Water Drops written by Pao-Kuan Wang and published by . This book was released on 1978 with total page 584 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Scavenging of Aerosol Particles by a Falling Water Drop written by Kuo-Yann Lai and published by . This book was released on 1977 with total page 292 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Precipitation Scavenging And Atmosphere Surface Exchange written by Stephen Schwartz and published by CRC Press. This book was released on 1992-06-01 with total page 654 pages. Available in PDF, EPUB and Kindle. Book excerpt: This three-volume set contains selected papers arising from a conference held in 1991 on precipitation and air pollution. The first volume addresses the precipitation scavenging process; the second deals with atmosphere-surface exchange processes; and the third covers air pollution and deposition.
Download or read book Precipitation Scavenging Dry Deposition and Resuspension written by Hans R. Pruppacher and published by . This book was released on 1983 with total page 762 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Microphysics of Clouds and Precipitation written by H.R. Pruppacher and published by Springer Science & Business Media. This book was released on 2010-06-25 with total page 975 pages. Available in PDF, EPUB and Kindle. Book excerpt: Cloud physics has achieved such a voluminous literature over the past few decades that a significant quantitative study of the entire field would prove unwieldy. This book concentrates on one major aspect: cloud microphysics, which involves the processes that lead to the formation of individual cloud and precipitation particles. Common practice has shown that one may distinguish among the following addi tional major aspects: cloud dynamics, which is concerned with the physics respon sible for the macroscopic features of clouds; cloud electricity, which deals with the electrical structure of clouds and the electrification processes of cloud and precipi tation particles; and cloud optics and radar meteorology, which describe the effects of electromagnetic waves interacting with clouds and precipitation. Another field intimately related to cloud physics is atmospheric chemistry, which involves the chemical composition ofthe atmosphere and the life cycle and characteristics of its gaseous and particulate constituents. In view of the natural interdependence of the various aspects of cloud physics, the subject of microphysics cannot be discussed very meaningfully out of context. Therefore, we have found it necessary to touch briefly upon a few simple and basic concepts of cloud dynamics and thermodynamics, and to provide an account of the major characteristics of atmospheric aerosol particles. We have also included a separate chapter on some of the effects of electric fields and charges on the precipitation-forming processes.
Download or read book rain scavenging of particulate matter from the atmosphere written by a. nelson dingle and published by . This book was released on 1962 with total page 42 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Vapor Scavenging by Atmospheric Aerosol Particles written by Elisabeth Andrews and published by . This book was released on 1996 with total page 338 pages. Available in PDF, EPUB and Kindle. Book excerpt: Particle growth due to vapor scavenging was studied using both experimental and computational techniques. Vapor scavenging by particles is an important physical process in the atmosphere because it can result in changes to particle properties (e.g., size, shape, composition, and activity) and, thus, influence atmospheric phenomena in which particles play a role, such as cloud formation and long range transport. In the modelling portion of this thesis, the influence of organic vapor on the evolution of a particle mass size distribution was investigated using a modified version of MAEROS (a multicomponent aerosol dynamics code) (Gelbard and Seinfeld, 1984). The modelling study attempted to identify the sources of organic aerosol observed by Novakov and Penner (1993) in a field study in Puerto Rico. Potential sources were hypothesized to be organic vapor emissions from either forest vegetation near the sampling site or from the ocean's surfactant layer followed by gas-to-particle conversion. Comparison of model parameters with literature values suggested that the observed organic aerosol was formed by nucleation and condensation of terpene vapor emissions onto a preexisting typical marine aerosol size distribution. Organic vapor emissions from the ocean were found to be an unlikely source of the observed organic aerosol. Experimentally, vapor scavenging and particle growth were investigated using two techniques. The influence of the presence of organic in a particle on the particle's hydroscopicity was investigated using an electrodynamic balance. It was found that, for a Tween80/NaCl system, having organic associated with an inorganic salt particle slowed the deliquescence rate of the particle. Additionally, for the Tween80/NaCl system the deliquescence humidity was lowered due to the presence of organic--suggesting an increase in particle hydroscopicity. It was also shown that the presence of an organic carbon (e.g., azelaic acid, Tween80 or dodecyl sulfate sodium salt) on a carbon block particle made the carbon block particle hygrophilic, while a pure carbon black particle was observed to be hydrophobic. The charge on a particle (which is required for study of a particle in the electrodynamic balance) was investigated theoretically and experimentally. Particle charge was found to have a negligible effect on particle growth in electrodynamic balance studies. A prototype apparatus--the refractive index thermal diffusion chamber (RITDC)--was developed to study multiple particles in the same environment at the same time. Proof of concept experiments showed that it is possible to determine particle composition with time from changes in particle refractive index measured using the RITDC. Further refinements to the apparatus were suggested.
Download or read book Determination of Effectiveness of Aerosol Particle Washout by Water Drops written by N. P. Yasevich and published by . This book was released on 1973 with total page 12 pages. Available in PDF, EPUB and Kindle. Book excerpt: The study of the process of capture of solid aerosol particles by drops is of interest in meteorology and technology. As a result of the collision of falling raindrops against solid dust particles suspended in air, these particles are washed out of the earth's atmosphere. Water spraying by jets is used in mines and pits for cleaning dust particles out of the air. Operation of spraying absorption towers is based on the process of capture of solid aerosol particles by liquid drops. This work was carried out with the aim of determining the effectiveness of solid aerosol particle washout by water drops at low Reynolds numbers Re = 1-40.
Download or read book Microphysics of Clouds and Precipitation written by H.R. Pruppacher and published by Springer Science & Business Media. This book was released on 1996-12-31 with total page 988 pages. Available in PDF, EPUB and Kindle. Book excerpt: Cloud physics has achieved such a voluminous literature over the past few decades that a significant quantitative study of the entire field would prove unwieldy. This book concentrates on one major aspect: cloud microphysics, which involves the processes that lead to the formation of individual cloud and precipitation particles. Common practice has shown that one may distinguish among the following addi tional major aspects: cloud dynamics, which is concerned with the physics respon sible for the macroscopic features of clouds; cloud electricity, which deals with the electrical structure of clouds and the electrification processes of cloud and precipi tation particles; and cloud optics and radar meteorology, which describe the effects of electromagnetic waves interacting with clouds and precipitation. Another field intimately related to cloud physics is atmospheric chemistry, which involves the chemical composition ofthe atmosphere and the life cycle and characteristics of its gaseous and particulate constituents. In view of the natural interdependence of the various aspects of cloud physics, the subject of microphysics cannot be discussed very meaningfully out of context. Therefore, we have found it necessary to touch briefly upon a few simple and basic concepts of cloud dynamics and thermodynamics, and to provide an account of the major characteristics of atmospheric aerosol particles. We have also included a separate chapter on some of the effects of electric fields and charges on the precipitation-forming processes.
Download or read book Introduction to Atmospheric Chemistry written by Daniel J. Jacob and published by Princeton University Press. This book was released on 1999 with total page 280 pages. Available in PDF, EPUB and Kindle. Book excerpt: Atmospheric chemistry is one of the fastest growing fields in the earth sciences. Until now, however, there has been no book designed to help students capture the essence of the subject in a brief course of study. Daniel Jacob, a leading researcher and teacher in the field, addresses that problem by presenting the first textbook on atmospheric chemistry for a one-semester course. Based on the approach he developed in his class at Harvard, Jacob introduces students in clear and concise chapters to the fundamentals as well as the latest ideas and findings in the field. Jacob's aim is to show students how to use basic principles of physics and chemistry to describe a complex system such as the atmosphere. He also seeks to give students an overview of the current state of research and the work that led to this point. Jacob begins with atmospheric structure, design of simple models, atmospheric transport, and the continuity equation, and continues with geochemical cycles, the greenhouse effect, aerosols, stratospheric ozone, the oxidizing power of the atmosphere, smog, and acid rain. Each chapter concludes with a problem set based on recent scientific literature. This is a novel approach to problem-set writing, and one that successfully introduces students to the prevailing issues. This is a major contribution to a growing area of study and will be welcomed enthusiastically by students and teachers alike.
Download or read book Diffusiophoretic Forces Between Juxtaposed Atmospheric Particles written by Allen L. Williams and published by . This book was released on 1972 with total page 200 pages. Available in PDF, EPUB and Kindle. Book excerpt: "The role of diffusiophoretics and Stefan flow in droplet growth by accretion and in-cloud scavenging is examined. A calculation is made for the diffusive forces between two juxtaposed spheres one or both of which are undergoing diffusional growth and the influence of the diffusive force on the trajectories of two spheres, assumed to obey the creeping flow equations is found. The results are: a) the diffusiophoretic force between two water droplets is zero. b) the diffusiophoretic force between a spherical ice particle and a water droplet, although non-zero, is too small to appreciably influence the fall trajectories. c) the diffusiophoretic force between a growing, spherical cloud element and a spherical inert particle is large enough to enhance the collision efficiencies of the spheres"--Abstract, leaf ii.
Download or read book Atmospheric Particles written by Roy M. Harrison and published by . This book was released on 1998-05-08 with total page 632 pages. Available in PDF, EPUB and Kindle. Book excerpt: The IUPAC Series on Analytical and Physical Chemistry of Environmental Systems provides the scientific community with a critical evaluation of the state of the art on physicochemical structures and reactions in environmental systems, as well as on the analytical techniques required to study and monitor these systems. The series is aimed at promoting rigorous analysis and understanding of physicochemical functioning of environmental systems. The last few years have seen a spectacular growth of interest in the field of aerosol science, and particularly in the properties and consequences of atmospheric aerosols. Research in this field has focused on the role of aerosols in such topical areas as heavy metal pollution, acid rain, photochemical smog and global warming. Atmospheric Particles examines the fundamental aspects of aerosol science relating to particles in the atmosphere, including the sources and size distribution of airborne particles, the means of sampling and chemical analysis, and the serious health implications of particles in the urban atmosphere. Atmospheric Particles * The first book to deal with aerosol particles in the atmosphere, their properties and significance. * Leading scientists review and evaluate the latest knowledge on sampling; characterisation and properties of atmospheric particles. * Excellent overview of current research and forthcoming developments in this rapidly expanding area. Atmospheric Particles brings together the state-of-the-art knowledge of aerosol science relating to airborne particulate matter which will be of interest to graduate students and researchers working in atmospheric science, environmental analysis, pollution chemistry and global change.
Download or read book Atmospheric Aerosols written by Claudio Tomasi and published by John Wiley & Sons. This book was released on 2016-11-08 with total page 711 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Download or read book Effects of Aerosols on Atmospheric Processes written by National Research Council of Canada. Associate Committee on Scientific Criteria for Environmental Quality. Panel on Atmospheric Aerosols. Subcommittee on Air and published by . This book was released on 1982 with total page 218 pages. Available in PDF, EPUB and Kindle. Book excerpt: Naslagwerk over de huidige kennis wat betreft aerosolen: eigenschappen van de deeltjes, bronnen van deze vorm van luchtverontreiniging, effect op mist en neerslag en effect op het klimaat. Tot nu toe is de aerosol met name bekeken vanuit het gezichtspunt concentratie; in deze publikatie wordt de aerosol ook bekeken vanuit eigenschappen van de samenstellende deeltjes
Download or read book Precipitation Scavenging Dry Deposition and Resuspension Precipitation scavenging written by Hans R. Pruppacher and published by . This book was released on 1983 with total page 762 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Nuclear Science Abstracts written by and published by . This book was released on 1971-04 with total page 1658 pages. Available in PDF, EPUB and Kindle. Book excerpt:
