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This book is a printed edition of the Special Issue "Morphology and Internal Mixing of Atmospheric Particles" that was published in Atmosphere.
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This open access title presents atmospheric simulation chambers as effective tools for atmospheric chemistry research. State-of-the-art simulation chambers provide unprecedented opportunities for atmospheric scientists to perform experiments that address the most important questions in air quality and climate research. The book covers technical details about chamber preparation and practical guidelines on their usage, while also delivering relevant historical and contextual information. It not only serves as a key publication for knowledge transfer within the simulation chamber research community, but it also provides the global atmospheric science community with a unique resource that outlines best practice for the operation of simulation chambers. The authors summarize the latest advances in chamber interoperability and standard protocols in order to provide the research community and the next generations of scientists with a unique technical reference guide for the use of simulation chambers. The volume will be of great interest to researchers and graduates working in the fields of Atmospheric and Environmental Sciences.
Atmospheric chemistry. --- Atmospheric science --- Chemistry, Physical and theoretical
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This Special Issue of Atmosphere, "Atmospheric Aqueous-Phase Chemistry", comprises ten original articles dealing with different aspects of chemistry in atmospheric liquid water. Liquid water in cloud and fog droplets and in moist aerosol particles is ubiquitous in the atmosphere. Dissolved species from the soluble aerosol fraction, as well as soluble trace gases, undergo chemical reactions in the aqueous phase via different mechanisms, usually yielding different products from those in the gas phase. In addition to their different reactivity, the chemical species solubility determines their fate in the atmosphere, i.e., their involvement in gas-phase or aqueous-phase chemistry. The articles of this Special Issue can be divided into three groups: (i) the first is mostly based on field measurements and/or combined field and modeling studies giving insights into the chemical characterization of different atmospheric liquid water samples from various environments; (ii) the second group is focused on studies of aqueous-phase reactivity of some important atmospheric organic compounds; and (iii) the final group comprises articles based on predictive modeling and/or combined modeling and laboratory studies providing insight into aqueous secondary organic aerosol (SOA) formation.
Atmospheric aerosols. --- Chemical reactions. --- Reactions, Chemical --- Chemical processes --- Aerosols --- Atmospheric chemistry
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Chlorofluorocarbons. --- Air --- Transboundary pollution. --- Atmospheric ozone. --- Pollution. --- Air contaminants --- Air pollutants --- Air pollution --- Air pollution control --- Air toxics --- Airborne pollutants --- Atmosphere --- Contaminants, Air --- Control of air pollution --- Pollutants, Air --- Toxics, Air --- Pollution --- Air quality --- Atmospheric deposition --- Atmospheric chemistry --- Ozone --- Transfrontier pollution --- Transnational pollution --- CFCs (Chemicals) --- Fluorocarbons --- Halocarbons --- Organochlorine compounds --- Control --- Ozone content
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Volcanoes release plumes of gas and ash to the atmosphere during episodes of passive and explosive behavior. These ejecta have important implications for the chemistry and composition of the troposphere and stratosphere, with the capacity to alter Earth's radiation budget and climate system over a range of temporal and spatial scales. Volcanogenic sulphur dioxide reacts to form sulphate aerosols, which increase global albedo, e.g., by reducing surface temperatures, in addition to perturbing the formation processes and optical properties of clouds. Released halogen species can also deplete stratospheric and tropospheric ozone. Volcanic degassing, furthermore, played a key role in the formation of Earth’s atmosphere, and volcanic plumes can affect air quality, pose hazards to aviation and human health, as well as damage ecosystems. The chemical compositions and emission rates of volcanic plumes are also monitored via a range of direct-sampling and remote-sensing instrumentation, in order to gain insights into subterranean processes, in the respect of the magmatic bodies these volatiles exsolve from. Given the significant role these gases play in driving volcanic activity, e.g., via pressurisation, the study of volcanic plumes is proving to be an increasingly fruitful means of improving our understanding of volcanic systems, potentially in concert with observations from geophysics and contributions from fluid dynamical modelling of conduit dynamics.
n/a --- radioactive disequilibria 210Pb-210Bi-210Po --- volcanic geochemistry --- radiative transfer --- spherical-cap bubble --- plume --- satellite remote sensing --- portable photometry --- puffing --- Holuhraun --- interdisciplinary volcanology --- gas slug --- atmospheric remote sensing --- analysis software --- gases --- image processing --- remote sensing --- SEVIRI data --- oxygen and sulfur multi-isotopes --- nonlinear spectral unmixing --- UV cameras --- ultraviolet cameras --- cloud height --- atmospheric chemistry --- Python 2.7 --- degassing processes --- volcanic plumes --- fissure eruption --- radiative forcing --- basaltic volcanism --- volcanic plume top height --- O3 --- eruption start and duration --- Differential Absorption Lidar (DIAL) --- volcanic emissions --- volcanology --- volcanic CO2 flux --- volcanic aerosols --- 2011–2015 Etna lava fountains --- SO2 --- reactive halogen --- nonlinear PCA --- gas --- Etna volcano --- geochemical modelling --- BrO --- volcanic sulfate aerosols --- volcanic gases --- SSA --- hyperspectral remote sensing --- time averaged discharge rate --- eruption monitoring --- Bárðarbunga --- strombolian --- aerosol optical properties --- Mount Etna --- Taylor bubble --- 2011-2015 Etna lava fountains --- Bárðarbunga
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