Experimental evidence for the role of ions in particle nucleation under atmospheric conditions

Henrik Svensmark; Jens Olaf Pepke Pedersen; N.D. Marsh; Martin Andreas Bødker Enghoff; U.I. Uggerhoj

doi:10.1098/rspa.2006.1773

Experimental evidence for the role of ions in particle nucleation under atmospheric conditions

Henrik Svensmark, Jens Olaf Pepke Pedersen, N.D. Marsh, Martin Andreas Bødker Enghoff, U.I. Uggerhoj

Research output: Contribution to journal › Journal article › Research › peer-review

Abstract

Experimental studies of aerosol nucleation in air, containing trace amounts of ozone, sulphur dioxide and water vapour at concentrations relevant for the Earth's atmosphere, are reported. The production of new aerosol particles is found to be proportional to the negative ion density and yields nucleation rates of the order of 0.1 1 cm(-3) s(-1). This suggests that the ions are active in generating an atmospheric reservoir of small thermodynamically stable clusters, which are important for nucleation processes in the atmosphere and ultimately for cloud formation.

Original language	English
Journal	Proceedings of the Royal Society A-mathematical Physical and Engineering Sciences
Volume	463
Issue number	2078
Pages (from-to)	385-396
ISSN	1364-5021
DOIs	https://doi.org/10.1098/rspa.2006.1773
Publication status	Published - 2007

Keywords

clouds
cosmic rays
aerosol nucleation

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10.1098/rspa.2006.1773

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title = "Experimental evidence for the role of ions in particle nucleation under atmospheric conditions",

abstract = "Experimental studies of aerosol nucleation in air, containing trace amounts of ozone, sulphur dioxide and water vapour at concentrations relevant for the Earth's atmosphere, are reported. The production of new aerosol particles is found to be proportional to the negative ion density and yields nucleation rates of the order of 0.1 1 cm(-3) s(-1). This suggests that the ions are active in generating an atmospheric reservoir of small thermodynamically stable clusters, which are important for nucleation processes in the atmosphere and ultimately for cloud formation.",

keywords = "clouds, cosmic rays, aerosol nucleation",

author = "Henrik Svensmark and Pedersen, {Jens Olaf Pepke} and N.D. Marsh and Enghoff, {Martin Andreas B{\o}dker} and U.I. Uggerhoj",

year = "2007",

doi = "10.1098/rspa.2006.1773",

language = "English",

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pages = "385--396",

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Experimental evidence for the role of ions in particle nucleation under atmospheric conditions. / Svensmark, Henrik ; Pedersen, Jens Olaf Pepke; Marsh, N.D. et al.
In: Proceedings of the Royal Society A-mathematical Physical and Engineering Sciences, Vol. 463, No. 2078, 2007, p. 385-396.

Research output: Contribution to journal › Journal article › Research › peer-review

TY - JOUR

T1 - Experimental evidence for the role of ions in particle nucleation under atmospheric conditions

AU - Svensmark, Henrik

AU - Pedersen, Jens Olaf Pepke

AU - Marsh, N.D.

AU - Enghoff, Martin Andreas Bødker

AU - Uggerhoj, U.I.

PY - 2007

Y1 - 2007

N2 - Experimental studies of aerosol nucleation in air, containing trace amounts of ozone, sulphur dioxide and water vapour at concentrations relevant for the Earth's atmosphere, are reported. The production of new aerosol particles is found to be proportional to the negative ion density and yields nucleation rates of the order of 0.1 1 cm(-3) s(-1). This suggests that the ions are active in generating an atmospheric reservoir of small thermodynamically stable clusters, which are important for nucleation processes in the atmosphere and ultimately for cloud formation.

AB - Experimental studies of aerosol nucleation in air, containing trace amounts of ozone, sulphur dioxide and water vapour at concentrations relevant for the Earth's atmosphere, are reported. The production of new aerosol particles is found to be proportional to the negative ion density and yields nucleation rates of the order of 0.1 1 cm(-3) s(-1). This suggests that the ions are active in generating an atmospheric reservoir of small thermodynamically stable clusters, which are important for nucleation processes in the atmosphere and ultimately for cloud formation.

KW - clouds

KW - cosmic rays

KW - aerosol nucleation

U2 - 10.1098/rspa.2006.1773

DO - 10.1098/rspa.2006.1773

M3 - Journal article

SN - 1364-5021

VL - 463

SP - 385

EP - 396

JO - Proceedings of the Royal Society A-mathematical Physical and Engineering Sciences

JF - Proceedings of the Royal Society A-mathematical Physical and Engineering Sciences

IS - 2078

ER -

Experimental evidence for the role of ions in particle nucleation under atmospheric conditions

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