Chemistry

Aeronomy of the middle atmosphere: chemistry and physics of by Guy P. Brasseur, Susan Solomon

By Guy P. Brasseur, Susan Solomon

[…] an engaging and well-written assessment of the present prestige of our wisdom of the composition of the center surroundings and the fundamental radiative, dynamical and photochemical procedures which hold it. (Bulletin American Meteorological Society)

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Extra resources for Aeronomy of the middle atmosphere: chemistry and physics of the stratosphere and mesosphere, Third Edition

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W. Jaeschke, ed. Springer-Verlag, 1986. N. Pandis, Atmospheric Chemistry and Physics — From Air Pollution to Climate Change. J. Wiley and Sons, 1998. , and G. Black, O1 S in the lower thermosphere — Chapman vs. Barth. Planet Space Sci: 25, 79, 1977. , Kinetics and Dynamics of Elementary Gas Reactions. Butterworths, 1980. , and P. Hamill, Effects of temperature and humidity on the growth and optical properties of sulfuric acid-water droplets in the stratosphere. J Atmos Sci: 12, 517, 1981. , Molecules and Radiation: An Introduction to Modern Molecular Spectroscopy.

6. 6 wt% sulfuric acid aerosol particles. The triangles represent the measurements of Hanson and Ravishankara (1994). The solid line represents the parameterization of γ as a function of the atmospheric partial pressure of HCl. The dashed lines represent the fraction of ClONO2 reacting with water molecules (γ H2 O ), with HCl in the bulk of the aerosol (ΓHCl b ), and with HCl on the surface of the particles (ΓHCl ). A HCl mixing ratio of 2 ppbv at a pressure s level of 50 hPa (lower stratosphere) corresponds to a HCl partial pressure of 10−10 atm.

12) where M can be any arbitrary atom or molecule (see the discussion of termolecular reactions below). 4. 4 kcal per mole. We shall see later in Chapter 4 that this process can serve as an important source of heat in the upper part of the middle atmosphere. An endothermic reaction can proceed if the required energy is provided by some external source, such as a photon. 998 × 108 m s−1 is the speed of light in a vacuum. 27 × 10−19 J/molecule, be provided by the photon. This corresponds to a wavelength λ ≤ 240 nm.

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