Results from the CERN pilot CLOUD experiment

Publication: Research - peer-reviewJournal article – Annual report year: 2010

Standard

Results from the CERN pilot CLOUD experiment. / Duplissy, J.; Enghoff, Martin Andreas Bødker; Aplin, K.L.; Arnold, F.; Aufmhoff, H.; Avngaard, M.; Baltensperger, U.; Bondo, Torsten; Bingham, R.; Carslaw, K.; Curtius, J.; David, A.; Fastrup, B.; Gagne, S.; Hahn, F.; Harrison, R.G.; Kellett, B.; Kirkby, J.; Kulmala, M.; Laakso, L.; Laaksonen, A.; Lillestol, E.; Lockwood, M.; Makela, J.; Makhmutov, V.; Marsh, N.D.; Nieminen, T.; Onnela, A.; Pedersen, E.; Pedersen, Jens Olaf Pepke; Polny, Josef; Reichl, U.; Seinfeld, J.H.; Sipila, M.; Stozhkov, Y.; Stratmann, F.; Svensmark, Henrik; Svensmark, Jacob; Veenhof, R.; Verheggen, B.; Viisanen, Y.; Wagner, P.E.; Wehrle, G.; Weingartner, E.; Wex, H.; Wilhelmsson, M.; Winkler, P.M.

In: Atmospheric Chemistry and Physics, Vol. 10, No. 4, 2010, p. 1635-1647.

Publication: Research - peer-reviewJournal article – Annual report year: 2010

Harvard

Duplissy, J, Enghoff, MAB, Aplin, KL, Arnold, F, Aufmhoff, H, Avngaard, M, Baltensperger, U, Bondo, T, Bingham, R, Carslaw, K, Curtius, J, David, A, Fastrup, B, Gagne, S, Hahn, F, Harrison, RG, Kellett, B, Kirkby, J, Kulmala, M, Laakso, L, Laaksonen, A, Lillestol, E, Lockwood, M, Makela, J, Makhmutov, V, Marsh, ND, Nieminen, T, Onnela, A, Pedersen, E, Pedersen, JOP, Polny, J, Reichl, U, Seinfeld, JH, Sipila, M, Stozhkov, Y, Stratmann, F, Svensmark, H, Svensmark, J, Veenhof, R, Verheggen, B, Viisanen, Y, Wagner, PE, Wehrle, G, Weingartner, E, Wex, H, Wilhelmsson, M & Winkler, PM 2010, 'Results from the CERN pilot CLOUD experiment' Atmospheric Chemistry and Physics, vol 10, no. 4, pp. 1635-1647., 10.5194/acp-10-1635-2010

APA

Duplissy, J., Enghoff, M. A. B., Aplin, K. L., Arnold, F., Aufmhoff, H., Avngaard, M., ... Winkler, P. M. (2010). Results from the CERN pilot CLOUD experiment. Atmospheric Chemistry and Physics, 10(4), 1635-1647. 10.5194/acp-10-1635-2010

CBE

Duplissy J, Enghoff MAB, Aplin KL, Arnold F, Aufmhoff H, Avngaard M, Baltensperger U, Bondo T, Bingham R, Carslaw K, Curtius J, David A, Fastrup B, Gagne S, Hahn F, Harrison RG, Kellett B, Kirkby J, Kulmala M, Laakso L, Laaksonen A, Lillestol E, Lockwood M, Makela J, Makhmutov V, Marsh ND, Nieminen T, Onnela A, Pedersen E, Pedersen JOP, Polny J, Reichl U, Seinfeld JH, Sipila M, Stozhkov Y, Stratmann F, Svensmark H, Svensmark J, Veenhof R, Verheggen B, Viisanen Y, Wagner PE, Wehrle G, Weingartner E, Wex H, Wilhelmsson M, Winkler PM. 2010. Results from the CERN pilot CLOUD experiment. Atmospheric Chemistry and Physics. 10(4):1635-1647. Available from: 10.5194/acp-10-1635-2010

MLA

Vancouver

Duplissy J, Enghoff MAB, Aplin KL, Arnold F, Aufmhoff H, Avngaard M et al. Results from the CERN pilot CLOUD experiment. Atmospheric Chemistry and Physics. 2010;10(4):1635-1647. Available from: 10.5194/acp-10-1635-2010

Author

Duplissy, J.; Enghoff, Martin Andreas Bødker; Aplin, K.L.; Arnold, F.; Aufmhoff, H.; Avngaard, M.; Baltensperger, U.; Bondo, Torsten; Bingham, R.; Carslaw, K.; Curtius, J.; David, A.; Fastrup, B.; Gagne, S.; Hahn, F.; Harrison, R.G.; Kellett, B.; Kirkby, J.; Kulmala, M.; Laakso, L.; Laaksonen, A.; Lillestol, E.; Lockwood, M.; Makela, J.; Makhmutov, V.; Marsh, N.D.; Nieminen, T.; Onnela, A.; Pedersen, E.; Pedersen, Jens Olaf Pepke; Polny, Josef; Reichl, U.; Seinfeld, J.H.; Sipila, M.; Stozhkov, Y.; Stratmann, F.; Svensmark, Henrik; Svensmark, Jacob; Veenhof, R.; Verheggen, B.; Viisanen, Y.; Wagner, P.E.; Wehrle, G.; Weingartner, E.; Wex, H.; Wilhelmsson, M.; Winkler, P.M. / Results from the CERN pilot CLOUD experiment.

In: Atmospheric Chemistry and Physics, Vol. 10, No. 4, 2010, p. 1635-1647.

Publication: Research - peer-reviewJournal article – Annual report year: 2010

Bibtex

@article{ac0575ddb5b74f20b3811f2dd3f3f465,
title = "Results from the CERN pilot CLOUD experiment",
publisher = "Copernicus GmbH",
author = "J. Duplissy and Enghoff, {Martin Andreas Bødker} and K.L. Aplin and F. Arnold and H. Aufmhoff and M. Avngaard and U. Baltensperger and Torsten Bondo and R. Bingham and K. Carslaw and J. Curtius and A. David and B. Fastrup and S. Gagne and F. Hahn and R.G. Harrison and B. Kellett and J. Kirkby and M. Kulmala and L. Laakso and A. Laaksonen and E. Lillestol and M. Lockwood and J. Makela and V. Makhmutov and N.D. Marsh and T. Nieminen and A. Onnela and E. Pedersen and Pedersen, {Jens Olaf Pepke} and Josef Polny and U. Reichl and J.H. Seinfeld and M. Sipila and Y. Stozhkov and F. Stratmann and Henrik Svensmark and Jacob Svensmark and R. Veenhof and B. Verheggen and Y. Viisanen and P.E. Wagner and G. Wehrle and E. Weingartner and H. Wex and M. Wilhelmsson and P.M. Winkler",
note = "Creative Commons Attribution 3.0 License.",
year = "2010",
doi = "10.5194/acp-10-1635-2010",
volume = "10",
number = "4",
pages = "1635--1647",
journal = "Atmospheric Chemistry and Physics",
issn = "1680-7316",

}

RIS

TY - JOUR

T1 - Results from the CERN pilot CLOUD experiment

A1 - Duplissy,J.

A1 - Enghoff,Martin Andreas Bødker

A1 - Aplin,K.L.

A1 - Arnold,F.

A1 - Aufmhoff,H.

A1 - Avngaard,M.

A1 - Baltensperger,U.

A1 - Bondo,Torsten

A1 - Bingham,R.

A1 - Carslaw,K.

A1 - Curtius,J.

A1 - David,A.

A1 - Fastrup,B.

A1 - Gagne,S.

A1 - Hahn,F.

A1 - Harrison,R.G.

A1 - Kellett,B.

A1 - Kirkby,J.

A1 - Kulmala,M.

A1 - Laakso,L.

A1 - Laaksonen,A.

A1 - Lillestol,E.

A1 - Lockwood,M.

A1 - Makela,J.

A1 - Makhmutov,V.

A1 - Marsh,N.D.

A1 - Nieminen,T.

A1 - Onnela,A.

A1 - Pedersen,E.

A1 - Pedersen,Jens Olaf Pepke

A1 - Polny,Josef

A1 - Reichl,U.

A1 - Seinfeld,J.H.

A1 - Sipila,M.

A1 - Stozhkov,Y.

A1 - Stratmann,F.

A1 - Svensmark,Henrik

A1 - Svensmark,Jacob

A1 - Veenhof,R.

A1 - Verheggen,B.

A1 - Viisanen,Y.

A1 - Wagner,P.E.

A1 - Wehrle,G.

A1 - Weingartner,E.

A1 - Wex,H.

A1 - Wilhelmsson,M.

A1 - Winkler,P.M.

AU - Duplissy,J.

AU - Enghoff,Martin Andreas Bødker

AU - Aplin,K.L.

AU - Arnold,F.

AU - Aufmhoff,H.

AU - Avngaard,M.

AU - Baltensperger,U.

AU - Bondo,Torsten

AU - Bingham,R.

AU - Carslaw,K.

AU - Curtius,J.

AU - David,A.

AU - Fastrup,B.

AU - Gagne,S.

AU - Hahn,F.

AU - Harrison,R.G.

AU - Kellett,B.

AU - Kirkby,J.

AU - Kulmala,M.

AU - Laakso,L.

AU - Laaksonen,A.

AU - Lillestol,E.

AU - Lockwood,M.

AU - Makela,J.

AU - Makhmutov,V.

AU - Marsh,N.D.

AU - Nieminen,T.

AU - Onnela,A.

AU - Pedersen,E.

AU - Pedersen,Jens Olaf Pepke

AU - Polny,Josef

AU - Reichl,U.

AU - Seinfeld,J.H.

AU - Sipila,M.

AU - Stozhkov,Y.

AU - Stratmann,F.

AU - Svensmark,Henrik

AU - Svensmark,Jacob

AU - Veenhof,R.

AU - Verheggen,B.

AU - Viisanen,Y.

AU - Wagner,P.E.

AU - Wehrle,G.

AU - Weingartner,E.

AU - Wex,H.

AU - Wilhelmsson,M.

AU - Winkler,P.M.

PB - Copernicus GmbH

PY - 2010

Y1 - 2010

N2 - During a 4-week run in October-November 2006, a pilot experiment was performed at the CERN Proton Synchrotron in preparation for the Cosmics Leaving OUtdoor Droplets (CLOUD) experiment, whose aim is to study the possible influence of cosmic rays on clouds. The purpose of the pilot experiment was firstly to carry out exploratory measurements of the effect of ionising particle radiation on aerosol formation from trace H2SO4 vapour and secondly to provide technical input for the CLOUD design. A total of 44 nucleation bursts were produced and recorded, with formation rates of particles above the 3 nm detection threshold of between 0.1 and 100 cm(-3) s(-1), and growth rates between 2 and 37 nm h(-1). The corresponding H2SO4 concentrations were typically around 10(6) cm(-3) or less. The experimentally-measured formation rates and H2SO4 concentrations are comparable to those found in the atmosphere, supporting the idea that sulphuric acid is involved in the nucleation of atmospheric aerosols. However, sulphuric acid alone is not able to explain the observed rapid growth rates, which suggests the presence of additional trace vapours in the aerosol chamber, whose identity is unknown. By analysing the charged fraction, a few of the aerosol bursts appear to have a contribution from ion-induced nucleation and ion-ion recombination to form neutral clusters. Some indications were also found for the accelerator beam timing and intensity to influence the aerosol particle formation rate at the highest experimental SO2 concentrations of 6 ppb, although none was found at lower concentrations. Overall, the exploratory measurements provide suggestive evidence for ion-induced nucleation or ion-ion recombination as sources of aerosol particles. However in order to quantify the conditions under which ion processes become significant, improvements are needed in controlling the experimental variables and in the reproducibility of the experiments. Finally, concerning technical aspects, the most important lessons for the CLOUD design include the stringent requirement of internal cleanliness of the aerosol chamber, as well as maintenance of extremely stable temperatures (variations below 0.1 degrees C).

AB - During a 4-week run in October-November 2006, a pilot experiment was performed at the CERN Proton Synchrotron in preparation for the Cosmics Leaving OUtdoor Droplets (CLOUD) experiment, whose aim is to study the possible influence of cosmic rays on clouds. The purpose of the pilot experiment was firstly to carry out exploratory measurements of the effect of ionising particle radiation on aerosol formation from trace H2SO4 vapour and secondly to provide technical input for the CLOUD design. A total of 44 nucleation bursts were produced and recorded, with formation rates of particles above the 3 nm detection threshold of between 0.1 and 100 cm(-3) s(-1), and growth rates between 2 and 37 nm h(-1). The corresponding H2SO4 concentrations were typically around 10(6) cm(-3) or less. The experimentally-measured formation rates and H2SO4 concentrations are comparable to those found in the atmosphere, supporting the idea that sulphuric acid is involved in the nucleation of atmospheric aerosols. However, sulphuric acid alone is not able to explain the observed rapid growth rates, which suggests the presence of additional trace vapours in the aerosol chamber, whose identity is unknown. By analysing the charged fraction, a few of the aerosol bursts appear to have a contribution from ion-induced nucleation and ion-ion recombination to form neutral clusters. Some indications were also found for the accelerator beam timing and intensity to influence the aerosol particle formation rate at the highest experimental SO2 concentrations of 6 ppb, although none was found at lower concentrations. Overall, the exploratory measurements provide suggestive evidence for ion-induced nucleation or ion-ion recombination as sources of aerosol particles. However in order to quantify the conditions under which ion processes become significant, improvements are needed in controlling the experimental variables and in the reproducibility of the experiments. Finally, concerning technical aspects, the most important lessons for the CLOUD design include the stringent requirement of internal cleanliness of the aerosol chamber, as well as maintenance of extremely stable temperatures (variations below 0.1 degrees C).

UR - http://www.atmos-chem-phys.net/10/1635/2010/

U2 - 10.5194/acp-10-1635-2010

DO - 10.5194/acp-10-1635-2010

JO - Atmospheric Chemistry and Physics

JF - Atmospheric Chemistry and Physics

SN - 1680-7316

IS - 4

VL - 10

SP - 1635

EP - 1647

ER -