Relevance of ion-induced nucleation of sulfuric acid and water in the lower troposphere over the boreal forest at northern latitudes

被引：23

作者：

Boy, M. ^{[1
]}

Kazil, J. ^{[2
]}

Lovejoy, E. R. ^{[3
]}

Guenther, A. ^{[4
]}

Kulmala, M. ^{[1
]}

机构：

[1] Univ Helsinki, Dept Phys Sci, Div Atmospher Sci, FIN-00014 Helsinki, Finland

[2] Univ Colorado, CIRES, Boulder, CO 80309 USA

[3] NOAA, Earth Syst Res Lab, Boulder, CO 80305 USA

[4] NCAR, ACD, Boulder, CO 80307 USA

来源：

ATMOSPHERIC RESEARCH | 2008年 / 90卷 / 2-4期

关键词：

Ion-induced nucleaton of sulfuric acid and water; Tropospheric aerosol; New particle formation;

D O I：

10.1016/j.atmosres.2008.01.002

中图分类号：

P4 [大气科学（气象学）];

学科分类号：

0706 ; 070601 ;

摘要：

The relevance of ion-induced nucleation of sulfuric acid and water (IINSW) in the troposphere over the boreal forest at northern latitudes is investigated by combining two existing and previously published models (MALTE - model to predict new aerosol formation in the lower troposphere; PARNUC - a parameterized steady-state model of neutral and ion-induced nucleation of sulfuric acid and water for atmospheric conditions). Simulations were performed for 4 days with observed new particle formation at ground level by using input data from the SMEAR H station in Hyytiala, Finland. The selected days were chosen to cover a wide range of values of the parameters most relevant for IINSW. The results showed that ion-induced nucleation of sulfuric acid and water can contribute up to 15% to the total amount of newly formed particles in the size range of 3-10 nm inside the mixed layer at the Hyytiala site. The importance of IINSW seemed to increase in the free troposphere above the boundary layer, however, lack of measurements in the vertical structure of the input parameters suggest that the model results are burdened with high uncertainties. (c) 2008 Elsevier B.V. All rights reserved.

引用

页码：151 / 158

页数：8

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