The Mobility of Tropospheric Ions Above the Exchange Layer

Hoppel, W. A.; Kraakevik, J. H.

doi:10.1175/1520-0469(1965)022<0509:tmotia>2.0.co;2

Cited by 9 publications

(2 citation statements)

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“…Independent observations of ion mobility spectra also point to very large positive and negative ions in the lower atmosphere. 27,28 While ionic charge can stabilize nucleation embryos, 5,29,30 substantial supersaturations are still required to form new particles. An alternative to direct ion nucleation is the formation of supercritical embryos upon the recombination of very large ions.…”

Section: Atmospheric Ions and Aerosolsmentioning

confidence: 99%

Tropospheric Sulfate Aerosol Formation Via Ion-Ion Recombination

Turco

Zhao

2000

Journal of the Air & Waste Management Association

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We propose a source of aerosols in the lower atmosphere associated with the creation, growth, and recombination of ubiquitous cosmogenically generated ions. This particle source should be favorable in the relatively clean, stable marine boundary layer, providing a uniform, continuous fine particle generator in the presence of dimethylsulfide emissions. Through this mechanism, new sulfate aerosols can be formed at sulfuric acid vapor partial pressures well below the supersaturations required for homogeneous binary nucleation of sulfuric acid/water solutions, which is consistent with numerous observations of new particle formation under sub-saturated conditions. The evolving aerosols in turn control the acid vapor concentration and thus modulate the sizes of the precursor ions and the rate of new particle formation. A simple model representing this nonlinear coupled system predicts that the physical and chemical processes connecting ions, vapors, and aerosols effectively constrain the particle population to a relatively narrow range of values. This self-limiting behavior may explain in part the apparent stability of the marine sulfate aerosol, with mean concentrations of the order of several hundred per cubic centimeter. BACKGROUNDIt has been proposed 1 that dimethylsulfide (DMS), a natural biogenic byproduct of phytoplankton metabolism,

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Section: Atmospheric Ions and Aerosolsmentioning

confidence: 99%

Tropospheric Sulfate Aerosol Formation Via Ion-Ion Recombination

Turco

Zhao

2000

Journal of the Air & Waste Management Association

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“…The mobility spectrums of atmospheric ions were measured by a cylindrical aspiration chamber such as used by several authors (Whipple, 1960., Hoegl, 1963., Misaki, 1964. and Hoppel and Kraakevik, 1965.…”

Section: Description Of the Apparatusmentioning

confidence: 99%

Comparison Between Size Distribution of Natural Aerosols and That of Radioactive Aerosols in the Atmosphere

Nakatani

1972

Journal of the Meteorological Society of Japan

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The size distributions of natural aerosols and those of radioactive aerosols have been determined simultaneously based on mobility measurements on those charged particles. The apparatus is a cylindrical aspiration chamber. In the case of radioactive aerosols, the central electrode of the condenser is essentially a gas flow counter. The counter covers the size range with approximate limits of 1*10-5 and 0.8*10-6cm in radius. The results indicate that the maximum number concentration of aerosols is located in this size region, and the distributions of radioactive aerosols are shifted toward larger size region compared with those of natural aerosols. This tendency is also marked with a number of measurements of the mean radius obtained by a diffusion battery. The size distributions of radioactive aerosols computed theoretically from those of natural aerosols are compared with the results obtained by direct measurements. The experimental results agree with the theoretical distribution as a rough first approach. But, the available data seem to indicate that the experimental results are shifted toward somewhat greater sizes than the theoretical ones.

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Ion-Aerosol Attachment Coefficients and the Diffusional Charging of Aerosols

Hoppel

1976

Electrical Processes in Atmospheres

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The Mobility of Tropospheric Ions Above the Exchange Layer

Cited by 9 publications

References 0 publications

Tropospheric Sulfate Aerosol Formation Via Ion-Ion Recombination

Tropospheric Sulfate Aerosol Formation Via Ion-Ion Recombination

Comparison Between Size Distribution of Natural Aerosols and That of Radioactive Aerosols in the Atmosphere

Ion-Aerosol Attachment Coefficients and the Diffusional Charging of Aerosols

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