Global atmospheric particle formation from CERN CLOUD measurements

Global atmospheric particle formation from CERN CLOUD measurements. Dunne, E., M., Gordon, H., Kürten, A., Almeida, J., Duplissy, J., Williamson, C., Ortega, I., K., Pringle, K., J., Adamov, A., Baltensperger, U., Barmet, P., Benduhn, F., Bianchi, F., Breitenlechner, M., Clarke, A., Curtius, J., Dommen, J., Donahue, N., M., Ehrhart, S., Flagan, R., C., Franchin, A., Guida, R., Hakala, J., Hansel, A., Heinritzi, M., Jokinen, T., Kangasluoma, J., Kirkby, J., Kulmala, M., Kupc, A., Lawler, M., J., Lehtipalo, K., Makhmutov, V., Mann, G., Mathot, S., Merikanto, J., Miettinen, P., Nenes, A., Onnela, A., Rap, A., Reddington, C., L., Riccobono, F., Richards, N., A., Rissanen, M., P., Rondo, L., Sarnela, N., Schobesberger, S., Sengupta, K., Simon, M., Sipilä, M., Smith, J., N., Stozkhov, Y., Tomé, A., Tröstl, J., Wagner, P., E., Wimmer, D., Winkler, P., M., Worsnop, D., R., & Carslaw, K., S. Science, 354(6316):1119-1124, 2016.

Website doi abstract bibtex

Fundamental questions remain about the origin of newly formed atmospheric aerosol particles because data from laboratory measurements have been insufficient to build global models. In contrast, gas-phase chemistry models have been based on laboratory kinetics measurements for decades. We built a global model of aerosol formation by using extensive laboratory measurements of rates of nucleation involving sulfuric acid, ammonia, ions, and organic compounds conducted in the CERN CLOUD (Cosmics Leaving Outdoor Droplets) chamber. The simulations and a comparison with atmospheric observations show that nearly all nucleation throughout the present-day atmosphere involves ammonia or biogenic organic compounds, in addition to sulfuric acid. A considerable fraction of nucleation involves ions, but the relatively weak dependence on ion concentrations indicates that for the processes studied, variations in cosmic ray intensity do not appreciably affect climate through nucleation in the present-day atmosphere.

@article{
 title = {Global atmospheric particle formation from CERN CLOUD measurements},
 type = {article},
 year = {2016},
 pages = {1119-1124},
 volume = {354},
 websites = {http://www.sciencemag.org/cgi/doi/10.1126/science.aaf2649},
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 last_modified = {2020-08-21T23:00:49.316Z},
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 starred = {false},
 authored = {true},
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 source_type = {article},
 folder_uuids = {e9db4589-c14d-471c-8b7a-bb4b8e16be27},
 private_publication = {false},
 abstract = {Fundamental questions remain about the origin of newly formed atmospheric aerosol particles because data from laboratory measurements have been insufficient to build global models. In contrast, gas-phase chemistry models have been based on laboratory kinetics measurements for decades. We built a global model of aerosol formation by using extensive laboratory measurements of rates of nucleation involving sulfuric acid, ammonia, ions, and organic compounds conducted in the CERN CLOUD (Cosmics Leaving Outdoor Droplets) chamber. The simulations and a comparison with atmospheric observations show that nearly all nucleation throughout the present-day atmosphere involves ammonia or biogenic organic compounds, in addition to sulfuric acid. A considerable fraction of nucleation involves ions, but the relatively weak dependence on ion concentrations indicates that for the processes studied, variations in cosmic ray intensity do not appreciably affect climate through nucleation in the present-day atmosphere.},
 bibtype = {article},
 author = {Dunne, Eimear M. and Gordon, Hamish and Kürten, Andreas and Almeida, João and Duplissy, Jonathan and Williamson, Christina and Ortega, Ismael K. and Pringle, Kirsty J. and Adamov, Alexey and Baltensperger, Urs and Barmet, Peter and Benduhn, Francois and Bianchi, Federico and Breitenlechner, Martin and Clarke, Antony and Curtius, Joachim and Dommen, Josef and Donahue, Neil M. and Ehrhart, Sebastian and Flagan, Richard C. and Franchin, Alessandro and Guida, Roberto and Hakala, Jani and Hansel, Armin and Heinritzi, Martin and Jokinen, Tuija and Kangasluoma, Juha and Kirkby, Jasper and Kulmala, Markku and Kupc, Agnieszka and Lawler, Michael J. and Lehtipalo, Katrianne and Makhmutov, Vladimir and Mann, Graham and Mathot, Serge and Merikanto, Joonas and Miettinen, Pasi and Nenes, Athanasios and Onnela, Antti and Rap, Alexandru and Reddington, Carly L.S. and Riccobono, Francesco and Richards, Nigel A.D. and Rissanen, Matti P. and Rondo, Linda and Sarnela, Nina and Schobesberger, Siegfried and Sengupta, Kamalika and Simon, Mario and Sipilä, Mikko and Smith, James N. and Stozkhov, Yuri and Tomé, Antonio and Tröstl, Jasmin and Wagner, Paul E. and Wimmer, Daniela and Winkler, Paul M. and Worsnop, Douglas R. and Carslaw, Kenneth S.},
 doi = {10.1126/science.aaf2649},
 journal = {Science},
 number = {6316}
}

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