Contribution of particle formation to global cloud condensation nuclei concentrations

被引：315

作者：

Spracklen, Dominick V. ^{[1
]}

Carslaw, Kenneth S. ^{[1
]}

Kulmala, Markku ^{[2
]}

Kerminen, Veli-Matti ^{[3
]}

Sihto, Sanna-Liisa ^{[2
]}

Riipinen, Ilona ^{[2
]}

Merikanto, Joonas ^{[1
]}

Mann, Graham W. ^{[1
]}

Chipperfield, Martyn P. ^{[1
]}

Wiedensohler, Alfred ^{[4
]}

Birmili, Wolfram ^{[4
]}

Lihavainen, Heikki ^{[3
]}

机构：

[1] Univ Leeds, Sch Earth & Environm, Leeds LS2 9JT, W Yorkshire, England

[2] Univ Helsinki, Dept Phys Sci, FIN-00014 Helsinki, Finland

[3] Finnish Meteorol Inst, FIN-00101 Helsinki, Finland

[4] Leibniz Inst Tropospher Res, D-04318 Leipzig, Germany

来源：

GEOPHYSICAL RESEARCH LETTERS | 2008年 / 35卷 / 06期

基金：

英国自然环境研究理事会;

关键词：

D O I：

10.1029/2007GL033038

中图分类号：

P [天文学、地球科学];

学科分类号：

07 ;

摘要：

We use a global aerosol microphysics model to predict the contribution of boundary layer (BL) particle formation to regional and global distributions of cloud condensation nuclei (CCN). Including an observationally derived particle formation scheme, where the formation rate of molecular clusters is proportional to gas-phase sulfuric acid to the power one, improves modeled particle size distribution and total particle number concentration at three continental sites in Europe. Particle formation increases springtime BL global mean CCN (0.2% supersaturation) concentrations by 3-20% and CCN (1%) by 5-50%. Uncertainties in particle formation and growth rates must be reduced before the accuracy of these predictions can be improved. These results demonstrate the potential importance of BL particle formation as a global source of CCN.

引用

页数：5

共 34 条

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