By Claudio Tomasi, Sandro Fuzzi, Alexander Kokhanovsky
The booklet describes the morphological, actual and chemical houses of aerosols from a number of typical and anthropogenic assets to aid the reader greater comprehend the direct function of aerosol debris in scattering and soaking up brief- and long-wave radiation.
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Additional resources for Atmospheric Aerosols: Life Cycles and Effects on Air Quality and Climate
The oxidation of Br− and Cl− ions in liquid phase, occurring in solutions of seasalt particles for both these ions, can produce BrOx and ClOx species. 5 ppbv, as occasionally observed over periods of hours to days in the Arctic boundary layer, usually starting at polar sunrise and continuing during the early spring period. In order to analyze the emissions and atmospheric distribution of the maritime aerosol components and evaluate the mechanisms forming sea-salt aerosols and the atmospheric content of such particles, it is necessary to use size-resolved models.
In particular, boreal forest ﬁres are estimated to contribute as much as 20–50% to the observed BC concentrations in the Arctic during summer. , 2006). For instance, over 5 million hectares of boreal forests burned in Alaska and Canada during summer 2004, and an enormous transport of smoke particles toward the Arctic followed. , 2008). , 2011). 5 Volcanic Dust in the Troposphere Volcanoes emit both particles and gases into the troposphere during their moderate eruptions and inject considerable amounts of gases into the lower stratosphere during the most violent episodes, at altitudes most frequently between 15 and 25 km.
6 suggested by Junge (1979). It is worth noting that the ﬁrst model is a special case of the second one and both these modeled processes are expected to act simultaneously on the natural sands. 2. The second stage of the desert dust formation process consists of particle ejection. It is much harder to model this physical mechanism. 5 Schematic representation of the saltation mechanism through which sand particles are mobilized by wind: a large particle (a) is lifted by wind and then lands on the ground (b), creating a burst of smaller dust particles (c).