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Publications 2008 2019

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2015

Investigating the growth of atmospheric molecular clusters based on appearance times and collision-evaporation fluxes

Kontkanen, J., Olenius, T. M., Lehtipalo, K., Vehkamäki, H. T. K. & Kulmala, M. T., 2015, Proceedings of the NOSA-FAAR Symposium 2015. Leskinen, A. & Kontkanen, J. (eds.). Helsinki: Finnish Association for Aerosol Research, p. 64 1 p. (Report Series in Aerosol Science; no. 165).

Research output: Chapter in Book/Report/Conference proceedingConference contributionScientific

Measurements of sub-3nm atmospheric clusters and particles in different environments

Kontkanen, J., Lehtipalo, K., Kangasluoma, J. P., Manninen, H. E., Järvinen, E. P., Laaksonen, A., Rose, C., Sellegri, K., Asmi, E., Lee, S., Petäjä, T. T. & Kulmala, M. T., 2015, EAC2015 Abstract book.

Research output: Chapter in Book/Report/Conference proceedingConference contributionScientific

2014

Concentrations of sub-3nm atmospheric clusters in different environmental conditions

Kontkanen, J., Lehtipalo, K., Kangasluoma, J. P., Manninen, H. E., Järvinen, E., Laaksonen, A., Rose, C., Sellegri, K., Asmi, E., Lee, S., Petaja, T. & Kulmala, M., 2014, Proceedings of the Center of Excellence in Atmospheric Sciences (CoE ATM): Molecular and Biological Processes to the Global Climate’ Annual Meeting 2014. Kulmala, M., Lintunen, A. & Kontkanen, J. (eds.). Helsinki: Aerosolitutkimusseura ry, p. 350-353 4 p. (Report Series in Aerosol Science; vol. 2014, no. 157).

Research output: Chapter in Book/Report/Conference proceedingConference contributionScientific

From boreal forest to mountain top: observations of sub 3-nm atmospheric clusters and particles in different environments

Kontkanen, J., Lehtipalo, K., Kangasluoma, J. P., Manninen, H. E., Järvinen, E., Hakala, J. P., Laaksonen, A., Rose, C., Sellegri, K., Asmi, E., Petaja, T. & Kulmala, M., 2014, Unknown host publication. 1 p.

Research output: Chapter in Book/Report/Conference proceedingConference contributionScientific

Growth of small atmospheric clusters a comparison of growth rates based on cluster appearance times and collision–evaporation fluxes

Olenius, T., Riipinen, I., Lehtipalo, K. & Vehkamäki, H., 2014, Proceedings of 'the Center of Excellence in Atmospheric Sciences (CoE ATM): From Molecular and Biological Processes to the Global Climate’ Annual Meeting 2014. Kulmala, M., Lintunen, A. & Kontkanen, J. (eds.). Helsinki: Aerosolitutkimusseura ry, p. 487-490 4 p. (Report Series in Aerosol Science; vol. 2014, no. 157).

Research output: Chapter in Book/Report/Conference proceedingConference contributionScientific

Growth of small molecular clusters: comparison of growth rates determined from cluster appearance times and collision–evaporation fluxes

Olenius, T., Riipinen, I., Lehtipalo, K. & Vehkamäki, H., 2014, Unknown host publication.

Research output: Chapter in Book/Report/Conference proceedingConference contributionScientific

Observations of sub-3nm atmospheric clusters and particles in different environments

Kontkanen, J., Lehtipalo, K., Kangasluoma, J. P., Manninen, H. E., Järvinen, E., Laaksonen, A., Rose, C., Sellegri, K., Asmi, EI., Lee, S., Petaja, T. & Kulmala, M., 2014, Unknown host publication.

Research output: Chapter in Book/Report/Conference proceedingConference contributionScientific

2013

A10 PSM: A new version of the particle size magnifier for detection of atmospheric clusters and particles as small as 1 nm

Lehtipalo, K., Franchin, A., Kontkanen, J., Mikkilä, J., Vanhanen, J., Kangasluoma, J. P., Petaja, T. & Kulmala, M., 2013, Proceedings of FCoE in 'Physics, Chemistry, Biology and Meteorology of Atmospheric Composition and Climate Change' Annual Meeting 2013. p. 330-332 3 p. (Report Series in Aerosol Science; vol. Nro 142 (2013)).

Research output: Chapter in Book/Report/Conference proceedingConference contributionScientific

A method to determine the size distribution of recombination products from atmospheric measurements

Kontkanen, J., Nieminen, T., Manninen, H. E., Lehtipalo, K., Kerminen, V-M., Kulmala, M. & Lehtinen, K., 2013, Unknown host publication.

Research output: Chapter in Book/Report/Conference proceedingConference contributionScientific

Effect of ions on sulphuric acid-water binary nucleation: experimental data and comparison with improved classical nucleation theory

Duplissy, J., Merikanto, J., Wimmer, D., Rondo, L., Vuollekoski, H., Schobesberger, S., Franchin, A., Lehtipalo, K., Kuerten, A., Tsagkogeorgas, G., Riccobono, F., Bianchi, F., Praplan, A., Steiner, G., Kangasluoma, J., Junninen, H., Nieminen, T., Breitenlechner, M., Ehrhart, S., Sitals, R. & 7 othersAmorin, A., Tome, A., Määttänen, A., Kupc, A., Vehkamäki, H., Kulmala, M. & CLOUD Collaboration, 2013, Proceedings of FCoE in 'Physics, Chemistry, Biology and Meteorology of Atmospheric Composition and Climate Change' Annual Meeting 2013. Kulmala, M., Lappalainen, H. K., Brus, M. & Kontkanen, J. (eds.). Helsinki, p. 208-210 3 p. (Report Series in Aerosol Science; no. 142).

Research output: Chapter in Book/Report/Conference proceedingConference contributionScientific

Improving the size resolution of air ion measurements in the 1-6 nm range

Franchin, A., Kangasluoma, J. P., Nieminen, T., Lehtipalo, K., Downard, A., Duplissy, J., Petaja, T., Flagan, R., Kulmala, M. & CLOUD Collaboration, 2013, Proceedings of FCoE in 'Physics, Chemistry, Biology and Meteorology of Atmospheric Composition and Climate Change' Annual Meeting 2013. p. 211-213 3 p. (Report Series in Aerosol Science; vol. Nro 142 (2013)).

Research output: Chapter in Book/Report/Conference proceedingConference contributionScientific

Investigations on the spatiotemporal properties of new particle formation events in a boreal forest environment

Lampilahti, J., Manninen, H. E., Nieminen, T., Mirme, S., Pullinen, I., Yli-Juuti, T., Schobesberger, S., Kangasluoma, J. P., Lehtipalo, K., Mentel, T. F., Petaja, T. & Kulmala, M., 2013, Proceedings of FCoE in 'Physics, Chemistry, Biology and Meteorology of Atmospheric Composition and Climate Change' Annual Meeting 2013. p. 324-328 5 p. (Report Series in Aerosol Science; vol. Nro 142 (2013)).

Research output: Chapter in Book/Report/Conference proceedingConference contributionScientific

Ion Generation And CPC Detection Efficiency Studies In Sub 3-nm Size Range

Kangasluoma, J., Junninen, H., Lehtipalo, K., Mikkilä, J., Vanhanen, J., Attoui, M., Sipilä, M., Worsnop, D., Kulmala, M. & Petäjä, T., 2013, Nucleation and Atmospheric Aerosols: 19th International Conference. DeMott, P. J. & O'Dowd, C. D. (eds.). AIP Publishing, p. 192-196 5 p. (AIP Conference Proceedings; vol. 1527).

Research output: Chapter in Book/Report/Conference proceedingConference contributionScientific

Long-term aerosol and trace gas measurements in Eastern Lapland, Finland: the impact of Kola air pollution to new particle formation and potential CCN

Kyrö, E-M., Väänänen, R., Kerminen, V-M., Virkkula, A. O., Asmi, A., Nieminen, T., Dal Maso, M., Petaja, T., Keronen, P. I. R., Aalto, P. P., Riipinen, I., Lehtipalo, K., Hari, P. & Kulmala, M., 2013, Proceedings of FCoE in 'Physics, Chemistry, Biology and Meteorology of Atmospheric Composition and Climate Change' Annual Meeting 2013. p. 320-323 4 p. (Report Series in Aerosol Science; vol. Nro 142 (2013)).

Research output: Chapter in Book/Report/Conference proceedingConference contributionScientific

Measurements of cluster composition in new particle formation from sulphuric acid, small bases, and oxidised organics

Schobesberger, S., Junninen, H., Franchin, A., Bianchi, F., Dommen, J., Donahue, N. M., Duplissy, J., Ehn, M. K., Lehtipalo, K., Lönn, G., Nieminen, T., Ortega Colomer, I. K., Sipilä, M. J., Petaja, T., Kulmala, M., Worsnop, D. & CLOUD Collaboration, 2013, Proceedings of FCoE in 'Physics, Chemistry, Biology and Meteorology of Atmospheric Composition and Climate Change' Annual Meeting 2013. p. 496-499 4 p. (Report Series in Aerosol Science; vol. Nro 142 (2013)).

Research output: Chapter in Book/Report/Conference proceedingConference contributionScientific

Observations of sub 3-nm atmospheric clusters and particles in different environments

Kontkanen, J., Lehtipalo, K., Kangasluoma, J. P., Manninen, H. E., Järvinen, E. P., Hakala, J. P., Hamad, A., Laaksonen, A., Rose, C., Sellegri, K., Asmi, E., Petaja, T. & Kulmala, M., 2013, Proceedings of FCoE in 'Physics, Chemistry, Biology and Meteorology of Atmospheric Composition and Climate Change' Annual Meeting 2013. p. 283-286 4 p. (Report Series in Aerosol Science; vol. Nro 142 (2013)).

Research output: Chapter in Book/Report/Conference proceedingConference contributionScientific

Sub3-nm growth rates in the CLOUD experiment

Wimmer, D., Lehtipalo, K., Petaja, T., Kulmala, M., Curtius, J. & CLOUD Collaboration, 2013, Proceedings of FCoE in 'Physics, Chemistry, Biology and Meteorology of Atmospheric Composition and Climate Change' Annual Meeting 2013. p. 550-553 4 p. (Report Series in Aerosol Science; vol. Nro 142 (2013)).

Research output: Chapter in Book/Report/Conference proceedingConference contributionScientific

2012

Direct observations of atmospheric sub-2 nm neutral and charged clusters

Kontkanen, J., Kulmala, M. T., Lehtipalo, K., Manninen, H. E., Petäjä, T. T., Sipilä, M. J., Junninen, H., Schobesberger, S., Rantala, P. A. I., Franchin, A., Jokinen, T. B. A., Järvinen, E. P., Äijälä, M. Y. E., Kangasluoma, J. P., Nieminen, T. J., Hakala, J. P., Aalto, P. P., Paasonen, P. J., Mikkilä, J. T., Vanhanen, J. J. & 10 othersAalto, J. A., Ruuskanen, T. M., Mauldin III, R. L., Duplissy, J., Bäck, J. K., Riipinen, I. A., Johnston, M., Smith, J., Kerminen, V-M. & Worsnop, D. R., 2012, Proceedings of the European Aerosol Conference 2012.

Research output: Chapter in Book/Report/Conference proceedingConference contributionScientific

Neutral and charged sub-2nm clusters in boreal forest boundary layer

Kontkanen, J., Hakala, S., Nieminen, T. J., Lehtipalo, K., Manninen, H. E., Petäjä, T. T. & Kulmala, M. T., 2012, Proceedings of the Cryosphere-Atmosphere Interactions in a Changing Arctic Climate (CRAICC) Annual Meeting 2012.

Research output: Chapter in Book/Report/Conference proceedingConference contributionScientific

Neutral and charged sub-2nm clusters in boreal forest boundary layer

Kontkanen, J., Hakala, S., Nieminen, T. J., Lehtipalo, K., Manninen, H. E., Petäjä, T. T. & Kulmala, M. T., 2012, Proceedings of The Finnish Centre of Excellence in Physics, Chemistry, Biology and Meteorology of Atmospheric Composition and Climate Change (FCoE) Annual Meeting 2012.

Research output: Chapter in Book/Report/Conference proceedingConference contributionScientific

2011

A new nanoscale ion differential mobility particle sizer

Hakala, J. P., Sipilä, M. J., Lehtipalo, K., Järvinen, E. P., Siivola, E., Kulmala, M. & Petaja, T., 2011, Proceedings of the Finnish Center of Excellence and Graduate School in 'Physics, Chemistry, Biology and Meteorology of Atmospheric Composition and Climate Change' Annual Workshop 18.–20.5.2011. p. 108-110 3 p. (Report series in aerosol science; vol. 126).

Research output: Chapter in Book/Report/Conference proceedingConference contributionScientific

An overview of recent instrument development at University of Helsinki

Petäjä, T., Sipilä, M. J., Lehtipalo, K., Manninen, H. E., Junninen, H., Ruuskanen, T., Ehn, M. K., Vanhanen, J., Vehkamäki, H., Worsnop, D. & Kulmala, M., 2011, Proceedings of the Finnish Center of Excellence and Graduate School in 'Physics, Chemistry, Biology and Meteorology of Atmospheric Composition and Climate Change' Annual Workshop 18.–20.5.2011. p. 309-314 6 p. (Report series in aerosol science; vol. 126).

Research output: Chapter in Book/Report/Conference proceedingConference contributionScientific

Concentrations of sub-2 nm particles in spring 2011 at the SMEAR II station

Kontkanen, J., Järvinen, E. P., Kangasluoma, J. P., Lehtipalo, K., Nieminen, T., Paasonen, P., Manninen, H. E., Sipilä, M. J., Jokinen, T., Mikkilä, J., Vanhanen, J., Hakala, J. P., Kerminen, V-M., Petaja, T. & Kulmala, M., 2011, Proceedings of CRAICC Annual Meeting 2011. p. 88-90 3 p. (Report series in aerosol science; vol. 128).

Research output: Chapter in Book/Report/Conference proceedingConference contributionScientific

Direct detection of atmospheric particle formation using ion spectrometers

Manninen, H. E., Hirsikko, A. E., Nieminen, T., Yli-Juuti, T., Asmi, E., Kontkanen, J., Franchin, A., Gagne, S., Lehtipalo, K., Kerminen, V-M., Petaja, T. & Kulmala, M., 2011, Proceedings of the Finnish Center of Excellence and Graduate School in 'Physics, Chemistry, Biology and Meteorology of Atmospheric Composition and Climate Change' Annual Workshop 18.–20.5.2011. p. 253-255 3 p. (Report series in aerosol science; vol. 126).

Research output: Chapter in Book/Report/Conference proceedingConference contributionScientific

Intercomparison of air ion spectrometers

Gagne, S., Lehtipalo, K., Manninen, H. E., Nieminen, T., Schobesberger, S., Franchin, A., Yli-Juuti, T., Boulon, J., Sonntag, A., Mirme, S., Mirme, A., Hõrrak, U., Petäjä, T., Asmi, E. & Kulmala, M., 2011, Proceedings of the Finnish Center of Excellence and Graduate School in 'Physics, Chemistry, Biology and Meteorology of Atmospheric Composition and Climate Change' Annual Workshop 18.–20.5.2011. p. 89-93 5 p. (Report series in aerosol science; vol. 126).

Research output: Chapter in Book/Report/Conference proceedingConference contributionScientific

Measurements of ions and ion clusters by mass spectrometry during sulfuric acid-induced nucleation in the CLOUD chamber at CERN

Schobesberger, S., Franchin, A., Junninen, H., Ehn, M. K., Lehtipalo, K., Gagne, S., Nieminen, T., Petaja, T., Kulmala, M., Worsnop, D. & CLOUD Collaboration, 2011, Proceedings of the Finnish Center of Excellence and Graduate School in 'Physics, Chemistry, Biology and Meteorology of Atmospheric Composition and Climate Change' Annual Workshop 18.–20.5.2011. Kulmala, M., Bäck, J., Lappalainen, H. K. & Nieminen, T. (eds.). Helsinki, p. 370-372 3 p. (Report Series in Aerosol Science; vol. 126).

Research output: Chapter in Book/Report/Conference proceedingConference contributionScientific

Measurements of ions and ion clusters in the CLOUD chamber nucleation events by mass spectrometry

Schobesberger, S., Franchin, A., Junninen, H., Ehn, M. K., Lehtipalo, K., Nieminen, T., Gagne, S., Petaja, T. & Worsnop, D., 2011, Proceedings of the European Aerosol Conference 2011.

Research output: Chapter in Book/Report/Conference proceedingConference contributionScientific

Particle Size Magnifier as a tool to detect atmospheric aerosol particles, ions and clusters smaller than 2 nm

Lehtipalo, K., Kontkanen, J., Kangasluoma, J. P., Vanhanen, J., Mikkilä, J., Manninen, H. E., Sipilä, M. J., Petaja, T. & Kulmala, M., 2011, Proceedings of CRAICC Annual Meeting 2011. p. 105-107 3 p. (Report series in aerosol science; vol. 128).

Research output: Chapter in Book/Report/Conference proceedingConference contributionScientific

Physical characterization of ions in the CLOUD chamber

The CLOUD collaboration, 2011, Proceedings of the Finnish Center of Excellence and Graduate School in 'Physics, Chemistry, Biology and Meteorology of Atmospheric Composition and Climate Change'. p. 87-88 2 p. (Report series in aerosol science; vol. 126).

Research output: Chapter in Book/Report/Conference proceedingConference contributionScientific

Plant emisissions and atmospheric nanoparticle formation

Dal Maso, M., Mentel, T., Kiendler-Scharr, A., Kleist, E., Mölgaard, B., Tilmann, R., Sipilä, M. J., Petäjä, T., Hakala, J. P., Liao, L., Lehtipalo, K., Junninen, H., Ehn, M. K., Vanhanen, J., Mikkilä, J., Kulmala, M., Wildt, J. & Worsnop, D., 2011, Proceedings of the Finnish Center of Excellence and Graduate School in 'Physics, Chemistry, Biology and Meteorology of Atmospheric Composition and Climate Change' Annual Workshop 18.–20.5.2011. p. 85-86 2 p. (Report series in aerosol science; vol. 126).

Research output: Chapter in Book/Report/Conference proceedingConference contributionScientific

The use of particle size magnifier for detection of particles smaller than 2 nm at the CLOUD experiment

Lehtipalo, K., Franchin, A., Schobesberger, S., Vanhanen, J., Mikkilä, J., Nieminen, T., Worsnop, D. & Kulmala, M., 2011, Proceedings of the Finnish Center of Excellence and Graduate School in 'Physics, Chemistry, Biology and Meteorology of Atmospheric Composition and Climate Change' Annual Workshop 18.–20.5.2011. p. 222-224 3 p. (Report series in aerosol science; vol. 126).

Research output: Chapter in Book/Report/Conference proceedingConference contributionScientific

Volatility of submicron atmospheric aerosols in a boreal forest site during a period of two and a half years

Häkkinen, S., Äijälä, M. Y. E., Lehtipalo, K., Junninen, H., Virkkula, A. O., Kulmala, M., Petaja, T. & Riipinen, I., 2011, Proceedings of CRAICC Annual Meeting 2011. p. 67-69 3 p. (Report series in aerosol science; vol. 128).

Research output: Chapter in Book/Report/Conference proceedingConference contributionScientific

2010

Formation and growth of atmospheric aerosols: cluster evaporation

Kulmala, M., Kurten, T. C., Vehkamäki, H., Petaja, T., Ortega Colomer, I. K., Ehn, M. K., Junninen, H., Nieminen, T., Lehtipalo, K., Riipinen, I., Manninen, H. E., Paasonen, P., Sipilä, M. J., Wilkman, O., Dal Maso, M., Worsnop, D. & Kerminen, V-M., 3 Sep 2010, Conference proceedings of International Aerosol Conference 2010 .

Research output: Chapter in Book/Report/Conference proceedingConference contributionScientific

Intercomparison of air ion spectrometers: a guide for data analysis.

Gagne, S., Lehtipalo, K., Manninen, H. E., Nieminen, T. J., Franchin, A., Schobesberger, S., Yli-Juuti, T., Hõrrak, U., Mirme, A., Mirme, S., Petaja, T., Asmi, E. & Kulmala, M., 2010, FCoE annual meeting 2010.

Research output: Chapter in Book/Report/Conference proceedingConference contributionScientific

Intercomparison of air ion spectrometers (AIS and NAIS): a basis for interpretation.

Gagne, S., Lehtipalo, K., Manninen, H. E., Nieminen, T. J., Franchin, A., Schobesberger, S., Yli-Juuti, T., Hõrrak, U., Mirme, A., Mirme, S., Petaja, T., Asmi, E. & Kulmala, M., 2010, Proceedings of the International Aerosol Conference 2010.

Research output: Chapter in Book/Report/Conference proceedingConference contributionScientific

Laboratory studies of nanoparticle formation from sulphuric acid and biogenic organic compounds at atmospheric concentrations

Dal Maso, M., Mentel, T. F., KiendlerScharr, A., Kleist, E., Tillmann, R., Sipilä, M. J., Petaja, T., Hakala, J. P., Liao, L., Lehtipalo, K., Junninen, H., Ehn, M. K., Vanhanen, J., Mikkilä, J., Kulmala, M., Wildt, J. & Worsnop, D., 2010, Proceedings of the International Aerosol Conference 2010.

Research output: Chapter in Book/Report/Conference proceedingConference contributionScientific

Overview on small ions in the atmosphere

Hirsikko, A., Nieminen, T., Kulmala, M., Kerminen, V-M., Manninen, H. E., Gagné, S., Lehtipalo, K., Laakso, L., Vana, M., Hôrrak, U., Mirme, A., Mirme, S. & Tammet, H., 2010, Proceedings of the Finnish Center of Excellence and Graduate School in 'Physics, Chemistry, Biology and Meteorology of Atmospheric Composition and Climate Change' Annual Workshop: 17.-19.5.2010. Helsinki, 3 p. (Report Series in Aerosol Science A; no. 109).

Research output: Chapter in Book/Report/Conference proceedingConference contributionScientific

2009

Atmospheric Sub-3 nm Cluster Measurements and Analysis Based on PH-CPC

Liao, L., Sipilä, M. J., Lehtipalo, K., Riipinen, I. & Kulmala, M., 2009, The 18th International Conference on Nucleation & Atmospheric Aerosols.

Research output: Chapter in Book/Report/Conference proceedingConference contributionScientific

Long-term variation of air pollution in eastern Lapland

Kyrö, E-M., Vakkari, V., Lehtipalo, K., Virkkula, A., Riipinen, I. & Kulmala, M., 2009, Proceedings of the Finnish Center of Excellence and Graduate School in 'Physics, Chemistry, Biology and Meteorology of Atmospheric Composition and Climate Change' : Annual Workshop 27.-29.4.2009. Kulmala, M., Bäck, J., Nieminen, T. & Lauri, A. (eds.). Helsinki: Finnish Association for Aerosol Research, p. 219-224 6 p. (Report series in aerosol science; no. 102).

Research output: Chapter in Book/Report/Conference proceedingConference contributionScientific

The effect of Kola Peninsula air pollution to the air quality in Eastern Lapland

Kyrö, E-M., Vakkari, V., Virkkula, A. O., Lehtipalo, K., Riipinen, I. & Kulmala, M., 2009, Water in a Changing Climate Progress in Land-Atmosphere Interactions and Energy Water Cycle Research : Proceedings. Melbourne, Australia, Vol. Volume I.

Research output: Chapter in Book/Report/Conference proceedingConference contributionScientific

2008

Approaches to direct measurement of atmospheric neutral clusters and particle formation

Sipilä, M., Manninen, H. E., Lehtipalo, K., Asmi, E., Riipinen, I., Petäjä, T. & Kulmala, M., 2008, Proceedings of the Nordic Center of Excellence BACCI (Biosphere-Atmosphere-Cloud-Climate Interactions) and the Finnish Center of Excellence 'Research Unit on Physics, Chemistry and Biology of Atmospheric Composition Climate Chance' activities in 2002-2007 / editors: Markku Kulmala, Jaana Bäck and Martta Salonen. p. 227-233 7 p. (Report series in aerosol science; no. 93).

Research output: Chapter in Book/Report/Conference proceedingConference contributionScientific