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Kari Lehtinen

Kari Lehtinen

Dean

Faculty of Science, Forestry and Technology

kari.lehtinen@uef.fi | +358 40 867 7844

Information Publications

Contact via:
Executive Assistant Satu Turunen,
satu.turunen@uef.fi, tel. +358 40 355 3698

Research groups

Aerosol Physics Research Group 01.08.1998 -

Publications

66/66 items

Analysis of atmospheric particle growth based on vapor concentrations measured at the high-altitude GAW station Chacaltaya in the Bolivian Andes
Heitto, Arto; Wu, Cheng; Aliaga, Diego; Blacutt, Luis; Chen, Xuemeng; Gramlich, Yvette; Heikkinen, Liine; Huang, Wei; Krejci, Radovan; Laj, Paolo; Moreno, Isabel; Sellegri, Karine; Velarde, Fernando; Weinhold, Kay; Wiedensohler, Alfred; Zha, Qiaozhi; Bianchi, Federico; Andrade, Marcos; Lehtinen, Kari EJ; Mohr, Claudia; Yli-Juuti, Taina. 2024. Atmospheric chemistry and physics. 24: 1315-1328 A1 Journal article (refereed), original research
Application of the finite element method to the multicomponent general dynamic equation of aerosols
Salminen, Teemu; Lehtinen, Kari E.J.; Seppänen, Aku. 2023. Journal of aerosol science. 174: A1 Journal article (refereed), original research
Assessing the climate and air quality effects of future aerosol mitigation in India using a global climate model combined with statistical downscaling
Miinalainen, Tuuli; Kokkola, Harri; Lipponen, Antti; Hyvärinen, Antti-Pekka; Soni, Vijay Kumar; Lehtinen, Kari EJ; Kühn, Thomas. 2023. Atmospheric chemistry and physics. 23: 3471-349 A1 Journal article (refereed), original research
Opinion: The strength of long-Term comprehensive observations to meet multiple grand challenges in different environments and in the atmosphere
Kulmala, Markku; Lintunen, Anna; Lappalainen, Hanna; Virtanen, Annele; Yan, Chao; Ezhova, Ekaterina; Nieminen, Tuomo; Riipinen, Ilona; Makkonen, Risto; Tamminen, Johanna; Sundström, Anu Maija; Arola, Antti; Hansel, Armin; Lehtinen, Kari; Vesala, Timo; Petäjä, Tuukka; Bäck, Jaana; Kokkonen, Tom; Kerminen, Veli Matti. 2023. Atmospheric chemistry and physics. 23: 14949-14971 A1 Journal article (refereed), original research
Scientific Overview on SLCPs: Characteristics, Impacts and Uncertainties
Kühn, Thomas; Miinalainen, Tuuli; Kokkola, Harri; Lehtinen, Kari. Teoksessa: Yamineva, Yulia; Kulovesi, Kati; Recio, Eugenia(toim.) , 2023. Reducing Emissions of Short-Lived Climate Pollutants: Perspectives on Law and Governance. s. 14-40. Brill Nijhoff B2 Book section
Deep-learning-based post-process correction of the aerosol parameters in the high-resolution Sentinel-3 Level-2 Synergy product
Lipponen, Antti; Reinvall, Jaakko; Väisänen, Arttu; Taskinen, Henri; Lähivaara, Timo; Sogacheva, Larisa; Kolmonen, Pekka; Lehtinen, Kari; Arola, Antti; Kolehmainen, Ville. 2022. Atmospheric measurement techniques. 15: 895-914 A1 Journal article (refereed), original research
Effects of oligomerization and decomposition on the nanoparticle growth: a model study
Heitto, Arto; Lehtinen, Kari; Petäjä, Tuukka; Lopez-Hilfiker, Felipe; Thornton, Joel A; Kulmala, Markku; Yli-Juuti, Taina. 2022. Atmospheric chemistry and physics. 22: 155-171 A1 Journal article (refereed), original research
Adsorptive uptake of water by semisolid secondary organic aerosols
Pajunoja Aki, Lambe Andrew T, Hakala Jani, Rastak Narges, Cummings Molly J, Brogan James F, Hao Liqing, Paramonov Mikhail, Hong Juan, Prisle Nonne L, Malila Jussi, Romakkaniemi Sami, Lehtinen Kari EJ, Laaksonen Ari, Kulmala Markku, Massoli Paola, Onasch Timothy B, Donahue Neil M, Riipinen Ilona, Davidovits Paul et al. 2015. Geophysical research letters. 42: 3063-3068 A1 Journal article (refereed), original research
Characterization and testing of a new environmental chamber
Leskinen A, Yli-Pirilä P, Kuuspalo K, Sippula O, Jalava P, Hirvonen M-R, Jokiniemi J, Virtanen A, Komppula M, Lehtinen KEJ. 2015. Atmospheric measurement techniques. 8: 2267-2278 A1 Journal article (refereed), original research
Communication: Kinetics of scavenging of small, nucleating clusters: First nucleation theorem and sum rules
Malila Jussi, McGraw Robert, Laaksonen Ari, Lehtinen Kari E J. 2015. Journal of chemical physics. 142: 11102 A1 Journal article (refereed), original research
Extrapolating particle concentration along the size axis in the nanometer size range requires discrete rate equations
Olenius Tinja, Kupiainen-Määttä Oona, Lehtinen Kari EJ, Vehkamäki Hanna. 2015. Journal of aerosol science. 90: 1-13 A1 Journal article (refereed), original research
MATCH-SALSA - Multi-scale Atmospheric Transport and CHemistry model coupled to the SALSA aerosol microphysics model - Part 1: Model description and evaluation
Andersson C, Bergström R, Bennet C, Robertson L, Thomas M, Korhonen H, Lehtinen KEJ, Kokkola H. 2015. Geoscientific model development. 8: 171-189 A1 Journal article (refereed), original research
One year of Raman lidar observations of free-tropospheric aerosol layers over South Africa
Giannakaki E, Pfüller A, Korhonen K, Mielonen T, Laakso L, Vakkari V, Baars H, Engelmann R, Beukes JP, Van Zyl PG, Josipovic M, Tiitta P, Chiloane K, Piketh S, Lihavainen H, Lehtinen KEJ, Komppula M. 2015. Atmospheric chemistry and physics. 15: 5429-5442 A1 Journal article (refereed), original research
Atmospheric submicron aerosol composition and particulate organic nitrate formation in a boreal forestland-urban mixed region
Hao Liqing, Kortelainen Aki, Romakkaniemi Sami, Portin Harri, Jaatinen Antti, Leskinen Ari, Komppula Mika, Miettinen Pasi, Sueper Donna, Pajunoja Aki, Smith James N, Lehtinen Kari E J, Worsnop Douglas R, Laaksonen Ari, Virtanen Annele. 2014. Atmospheric chemistry and physics. 14: 13483-13495 A1 Journal article (refereed), original research
Characterization and testing of a new environmental chamber designed for emission aging studies
Leskinen A, Yli-Pirilä P, Kuuspalo K, Sippula O, Jalava P, Hirvonen M-R, Jokiniemi J, Virtanen A, Komppula M, Lehtinen KEJ. 2014. Atmospheric measurement techniques discussions. 7: 5921-5951 A1 Journal article (refereed), original research
Comparing ECMWF AOD with AERONET observations at visible and UV wavelengths
Cesnulyte Vaida, Lindfors Anders V, Pitkänen Mikko R A, Lehtinen Kari E J, Morcrette J-J, Arola Antti. 2014. Atmospheric chemistry and physics. 14: 593-608 A1 Journal article (refereed), original research
Critical cluster size cannot in practice be determined by slope analysis in atmospherically relevant applications
Kupiainen-Määttä Oona, Olenius Tinja, Korhonen Hannele, Malila Jussi, Dal Maso Miikka, Lehtinen Kari, Vehkamäki Hanna. 2014. Journal of aerosol science. 77: 127-144 A1 Journal article (refereed), original research
Effect of water vapor on the determination of aerosol direct radiative effect based on the AERONET fluxes
Huttunen Jani, Arola Antti, Myhre Gunnar, Lindfors Anders V, Mielonen Tero, Mikkonen Santtu, Schafer Joel S, Tripathi S N, Wild M, Komppula Mika, and Lehtinen Kari E J. 2014. Atmospheric chemistry and physics. 14: 6103-6110 A1 Journal article (refereed), original research
Estimating atmospheric nucleation rates from size distribution measurements: Analytical equations for the case of size dependent growth rates
Korhonen Hannele, Kerminen Veli-Matti, Kokkola Harri, Lehtinen Kari E J. 2014. Journal of aerosol science. 69: 13-20 A1 Journal article (refereed), original research
Observing wind, aerosol particles, cloud and precipitation: Finland's new ground-based remote-sensing network
Hirsikko Anne, O'Connor E J, Komppula Mika, Korhonen Kimmo, Pfüller Anne, Giannakaki Eleni, Wood C R, Bauer-Pfundstein M, Poikonen A, Karppinen T, Lonka H, Kurri M, Heinonen J, Moisseev D, Asmi Eija, Aaltonen V, Nordbo Annika, Rodriguez E, Lihavainen Heikki, Laaksonen Ari, Lehtinen Kari E J, Laurila T, Petäjä Tuukka, Kulmala Markku, Viisanen Yrjö. 2014. Atmospheric measurement techniques. 7: 1351-1375 A1 Journal article (refereed), original research
Reallocation in modal aerosol models: impacts on predicting aerosol radiative effects
Korhola Tapani, Kokkola Harri, Korhonen Hannele, Partanen Antti-Ilari, Laaksonen Ari, Lehtinen Kari E J, Romakkaniemi Sami. 2014. Geoscientific model development. 7: 161-174 A1 Journal article (refereed), original research
Representing situational knowledge acquired from sensor data for atmospheric phenomena
Stocker Markus, Baranizadeh Elham, Portin Harri, Komppula Mika, Rönkkö Mauno, Hamed Amar, Virtanen Annele, Lehtinen Kari, Laaksonen Ari, Kolehmainen Mikko. 2014. Environmental modelling and software. 58: 27-47 A1 Journal article (refereed), original research
Role of microbial and chemical composition in toxicological properties of indoor and outdoor air particulate matter
Happo Mikko S, Sippula Olli, Jalava Pasi I, Rintala Helena, Leskinen Ari, Komppula Mika, Kuuspalo Kari, Mikkonen Santtu, Lehtinen Kari, Jokiniemi Jorma, Hirvonen Marja-Riitta. 2014. Particle and fibre toxicology. 11: 1-18 A1 Journal article (refereed), original research
The effect of cloudiness on new-particle formation: investigation of radiation levels
Baranizadeh Elham, Arola Antti, Hamed Amar, Nieminen Tuomo, Mikkonen Santtu, Virtanen Annele, Kulmala Markku, Lehtinen Kari, Laaksonen Ari. 2014. Boreal environment research. 19: 343-354 A1 Journal article (refereed), original research
The effect of local sources on particle size and chemical composition and their role in aerosol-cloud interactions at Puijo measurement station
Portin Harri, Leskinen Ari, Hao Liqing, Kortelainen Aki, Miettinen Pasi, Jaatinen Antti, Laaksonen Ari, Lehtinen Kari E J, Romakkaniemi Sami, Komppula Mika. 2014. Atmospheric chemistry and physics. 14: 6021-6034 A1 Journal article (refereed), original research
The role of low volatile organics on secondary organic aerosol formation
Kokkola Harri, Yli-Pirilä Pasi, Vesterinen Milko, Korhonen Hannele, Keskinen Helmi, Romakkaniemi Sami, Hao Liqing, Kortelainen Aki, Joutsensaari Jorma, Worsnop Douglas R, Virtanen Annele, Lehtinen Kari E J. 2014. Atmospheric chemistry and physics. 14: 1689-1700 A1 Journal article (refereed), original research
Aerosol Chemical Composition in Cloud Events by High Resolution Time-of-Flight Aerosol Mass Spectrometry
L. Q. Hao, S. Romakkaniemi, A. Kortelainen, A. Jaatinen, H. Portin, P. Miettinen, M. Komppula, A. Leskinen, A. Virtanen, J.N. Smith, D. Sueper,D.R. Worsnop, K.E.J. Lehtinen and A. Laaksonen. 2013. Environmental science and technology. 47: 2645-2653 A1 Journal article (refereed), original research
Characterization of Chemical and Microbial Species from Size-Segregated Indoor and Outdoor Particulate Samples
Sippula O, Rintala H, Happo M, Jalava P, Kuuspalo K, Virén A, Leskinen A, Markkanen A, Komppula M, Markkanen P, Lehtinen K, Jokiniemi J, Hirvonen M-R. 2013. Aerosol and air quality research. 13: 1212-1230 A1 Journal article (refereed), original research
Climate and air quality trade-offs in altering ship fuel sulfur content
Partanen AI, Laakso A, Schmidt A, Kokkola H, Kuokkanen T, Pietikäinen J-P, Kerminen V-M, Lehtinen KEJ, Laakso L, Korhonen H. 2013. Atmospheric chemistry and physics. 13: 12059-12071 A1 Journal article (refereed), original research
Determination of the size distribution of recombination products from atmospheric measurements
Kontkanen J, Nieminen T, Manninen H, Lehtipalo K, Kerminen V-M, Lehtinen Kari EJ, Kulmala Markku. Teoksessa: DeMott, Paul J and O'Dowd, Colin D(toim.) , 2013. NUCLEATION AND ATMOSPHERIC AEROSOLS: 19th International Conference. s. 238-241. American Institute of Physics B3 Non-refereed conference proceedings
Direct Observations of Atmospheric Aerosol Nucleation
Kulmala Markku, Kontkanen Jenni, Junninen Heikki, Lehtipalo Katrianne, Manninen Hanna E, Nieminen Tuomo, Petäjä Tuukka, Sipilä Mikko, Schobesberger Siegfried, Rantala Pekka, Franchin Alessandro, Jokinen Tuija, Järvinen Emma, Äijälä Mikko, Kangasluoma Juha, Hakala Jani, Aalto Pasi P, Paasonen Pauli, Mikkilä Jyri, Vanhanen Joonas, et. al.. 2013. Science. 22: 943-946 A1 Journal article (refereed), original research
Estimating the Viscosity Range of SOA Particles Based on Their Coalescence Time
Pajunoja Aki, Malila Jussi, Hao Liqing, Joutsensaari Jorma, Lehtinen Kari E J, Virtanen Annele. 2013. Aerosol science and technology. 48: i-iv A1 Journal article (refereed), original research
Estimating the contribution of ion-ion recombination to sub-2 nm cluster concentrations from atmospheric measurements
Kontkanen Jenni, Lehtinen, Kari E J, Nieminen Tuomo, Manninen Hanna E, Lehtipalo Katrianne, Kerminen, Veli-Matti, Kulmala Markku. 2013. Atmospheric chemistry and physics. 13: 11391-11401 A1 Journal article (refereed), original research
Influence of observed diurnal cycles of aerosol optical depth on aerosol direct radiative effect
Arola Antti, Eck T F, Huttunen J, Lehtinen Kari E J, Lindfors Anders V, Myhre G, Smirnov A, Tripathi S N, Yu H. 2013. Atmospheric chemistry and physics. 13: 7895-7901 A1 Journal article (refereed), original research
Log-log slope analyses of simulated particle formation events at different conditions
Korhonen Hannele, Malila Jussi, Vehkamäki, Hanna, Kerminen, Veli-Matti, Lehtinen Kari EJ. Teoksessa: DeMott, Paul J and O'Dowd, Colin D(toim.) , 2013. NUCLEATION AND ATMOSPHERIC AEROSOLS: 19th International Conference. s. 234-237. American Institute of Physics A4 Conference proceedings
Long-term measurements of cloud droplet concentrations and aerosol-cloud interactions in continental boundary layer clouds
Ahmad Irshad, Mielonen Tero, Grosvenor Daniel P, Portin Harri J, Arola Antti, Mikkonen Santtu, Kühn Thomas, Leskinen Ari, Joutsensaari Jorma, Komppula Mika, Lehtinen Kari EJ, Laaksonen Ari, Romakkaniemi Sami. 2013. Tellus series b: chemical and physical meteorology. 65: 20138 A1 Journal article (refereed), original research
Repairing the first nucleation theorem: Precritical cluster losses
Malila Jussi, McGraw R, Laaksonen Ari, Lehtinen Kari EJ. Teoksessa: DeMott, Paul J and O'Dowd, Colin D(toim.) , 2013. NUCLEATION AND ATMOSPHERIC AEROSOLS: 19th International Conference. s. 31-34. American Institute of Physics A4 Conference proceedings
Seasonal variation in the toxicological properties of size-segregated indoor and outdoor air particulate matter
Happo MS, Markkanen A, Markkanen P, Jalava P, Kuuspalo K, Leskinen A, Sippula O, Lehtinen K, Jokiniemi J, Hirvonen M-R. 2013. Toxicology in vitro. 27: 1550-1561 A1 Journal article (refereed), original research
The effect of early growth dynamics on determining particle formation rates of a nucleating burst
Dal Maso Miikka, Korhonen Hannele, Lehtinen Kari EJ, Vehkamäki Hanna. Teoksessa: DeMott, Paul J and O'Dowd, Colin D(toim.) , 2013. NUCLEATION AND ATMOSPHERIC AEROSOLS: 19th International Conference. s. 250-253. American Institute of Physics A4 Conference proceedings
Using measurements of the aerosol charging state in determination of the particle growth rate and the proportion of ion-induced nucleation.
Leppä Johannes, Gagné Stefanie, Laakso Lauri, Manninen Hanna E, Lehtinen Kari E J, Kulmala Markku, Kerminen Veli-Matti. 2013. Atmospheric chemistry and physics. 13: 463-486 A1 Journal article (refereed), original research
A method to study agglomerate breakup and bounce during impaction
Ihalainen Mika, Lind Terttaliisa, Torvela Tiina, Lehtinen Kari, Jokiniemi Jorma. 2012. Aerosol science and technology. 46: 990-1001 A1 Journal article (refereed), original research
A numerical comparison of different methods for determining the particle formation rate
Vuollekoski Henri, Sihto Sanna-Liisa, Kerminen Veli-Matti, Kulmala Markku, Lehtinen Kari EJ. 2012. Atmospheric chemistry and physics. 12: 2289-2295 A1 Journal article (refereed), original research
A review of operational, regional-scale, chemical weather forecasting models in Europe
Kukkonen J, Olsson T, Schultz D M, Baklanov A, Klein T, Miranda A I, Monteiro A, Hirtl M, Tarvainen V, Boy M, Peuch V-H., Poupkou A, Kioutsioukis I, Finardi S, Sofiev M, Sokhi R, Lehtinen Kari E J, Karatzas K, San José R, Astitha M, Kallos G, Schaap M, Reimer E, Jakobs H, Eben K. 2012. Atmospheric chemistry and physics. 12: 1-87 A1 Journal article (refereed), original research
Biomass burning aerosols observed in Eastern Finland during the Russian wildfires in summer 2010 - Part 1: In-situ aerosol characterization
Portin Harri, Mielonen Tero, Leskinen Ari, Arola Antti, Pärjälä E, Romakkaniemi Sami, Laaksonen Ari, Lehtinen Kari E J, Komppula Mika. 2012. Atmospheric environment. 47: 269-278 A1 Journal article (refereed), original research
Biomass burning aerosols observed in Eastern Finland during the Russian wildfires in summer 2010 - Part 2: Remote sensing
Mielonen Tero, Portin Harri, Komppula Mika, Leskinen Ari, Tamminen J, Ialongo I, Hakkarainen J, Lehtinen Kari E J, Arola Antti. 2012. Atmospheric environment. 47: 279-287 A1 Journal article (refereed), original research
Cloud Condensation Nucleus Production from Nucleation Events at a Semi-Rural Environment: Puijo station, Eastern Finland
Amar Hamed, Mika Komppula, Harri Portin, Ari Leskinen, Sami Romakkaniemi, Kari Lehtinen, James Smith, Jorma Joutsensaari and Ari Laaksonen:. 2012.
Direct and indirect effects of sea spray geoengineering and the role of injected particle size
Partanen Antti-Ilari, Kokkola Harri, Romakkaniemi Sami, Kerminen Veli-Matti, Lehtinen Kari E. J., Bergman Tommi, Arola Antti, Korhonen Hannele. 2012. Journal of geophysical research. 117: D2 A1 Journal article (refereed), original research
Evaluation of the sectional aerosol microphysics module SALSA implementation in ECHAM5-HAM aerosol-climate model
Bergman Tommi, Kerminen Veli-Matti, Korhonen Hannele, Lehtinen Kari E J, Makkonen Risto, Arola Antti, Mielonen Tero, Romakkaniemi Sami, Kulmala Markku, Kokkola Harri. 2012. Geoscientific model development. 5: 845-868 A1 Journal article (refereed), original research
Impaction dynamics of TiO2 agglomerates with different properties
Ihalainen Mika, Lind Terttaliisa, Torvela Tiina, Lehtinen Kari, Jokiniemi Jorma. 2012.
In-situ observations of Eyjafjallajökull ash particles by hot-air balloon
Petäjä Tuukka, Laakso L, Grönholm T, Launiainen S, Evele-Peltoniemi I, Virkkula A, Leskinen Ari, Backman J, Manninen H E, Sipila M, Haapanala S, Hameri K, Vanhala E, Tuomi T, Paatero J, Aurela M, Hakola H, Makkonen U, Hellen H, Hillamo R, et al.. 2012. Atmospheric environment. 48: 104-112 A1 Journal article (refereed), original research
Measurement of the nucleation of atmospheric aerosol particles
Kulmala Markku, Petäjä Tuukka, Nieminen Tuomo, Sipilä Mikko, Manninen Hanna E, Lehtipalo Katrianne, Dal Maso Miikka, Aalto Pasi P, Junninen Heikki, Paasonen Pauli, Riipinen Ilona, Lehtinen Kari E J, Laaksonen Ari, Kerminen Veli-Matti. 2012. Nature physics. 7: 1651-1667 A1 Journal article (refereed), original research
Operational chemical weather forecasting models on a regional scale in Europe
Kukkonen J, Balk T, Schultz D M, Baklanov A, Klein T, Miranda A I, Monteiro A, Hirtl M, Tarvainen V, Boy M, Peuch V-H, Poupkou A, Kioutsioukis I, Finardi S, Sofiev M, Sokhi R, Lehtinen Kari E J, Karatzas K, San Jose R, Astitha, M, Kallos G, Schaap M, Reimer E, Jakobs H, Eben K. Teoksessa: Steyn, Douw G.; Trini Castelli, Silvia(toim.) , 2012. Air Pollution Modelling and its Application XXI. s. 359-366. Springer Science+Business Media A3 Book section, Chapters in research books
Quantitative Characterization of Critical nanoclusters nucleated on large single molecules
Winkler Paul M, Vrtala A, Steiner G, Wimmer D, Vehkamäki Hanna, Lehtinen Kari EJ, Reischl G P, Kulmala Markku, Wagner P. 2012. Physical review letters. 108: 85701 A1 Journal article (refereed), original research
Rethinking the application of the first nucleation theorem to particle formation
Vehkamäki Hanna, McGrath Matthew J., Kurtén Theo, Julin Jan, Lehtinen Kari E. J., Kulmala Markku. 2012. Journal of chemical physics. 136: 94107 A1 Journal article (refereed), original research
Seasonal cycle and source analyses of aerosol optical properties in a semi-urban environment at Puijo station in Eastern Finland
Leskinen Ari, Arola Antti, Komppula Mika, Portin Harri, Tiitta Petri, Miettinen Pasi, Romakkaniemi Sami, Laaksonen Ari, Lehtinen Kari EJ. 2012. Atmospheric chemistry and physics. 12: 5647-5659 A1 Journal article (refereed), original research
Stratospheric passenger flights are likely an inefficient geoengineering strategy
Laakso Anton, Partanen Antti-Ilari, Kokkola Harri, Laaksonen Ari, Lehtinen Kari EJ and Korhonen Hannele. 2012. Environmental research letters. 7: 34021 A1 Journal article (refereed), original research
Surfactant effects in global simulations of cloud droplet activation
Prisle NL, Asmi, Ari, Topping D, Partanen Antti-Ilari, Romakkaniemi Sami, Dal Maso Miikka, Kulmala Markku, Laaksonen Ari, Lehtinen Kari EJ, McFiggans G, Kokkola H. 2012. Geophysical research letters. 39: - A1 Journal article (refereed), original research
Technical Note: One year of Raman-lidar measurements in Gual Pahari EUCAARI site close to New Delhi in India - Seasonal characteristics of the aerosol vertical structure
Komppula Mika, Mielonen Tero, Arola Antti, Korhonen Kimmo, Lihavainen Heikki, Hyvärinen Antti-Pekka, Baars H, Engelmann R, Althausen D, Ansmann A, Müller D, Panwar T S, Hooda R K, Sharma V P, Kerminen Veli-Matti, Lehtinen Kari E J, Viisanen Yrjö. 2012. Atmospheric chemistry and physics. 12: 4513-4524 A1 Journal article (refereed), original research
Aerosol black carbon at five background measurement sites over Finland, a gateway to the Arctic.
Hyvärinen A-P, Kolmonen P, Kerminen V-M, Virkkula A, Leskinen A, Komppula M, Hatakka J, Burkhart J, Stohl A, Aalto P, Kulmala M, Lehtinen K.E.J., Viisanen Y, Lihavainen H. 2011. Atmospheric environment. 45: 4042-4050 A1 Journal article (refereed), original research
Characterization of New Particle Formation Events in Kuopio, Finland Based on a three-year analysis
Hamed A, Portin H, Leskinen M, Komppula M, Lehtinen KEJ, Romakkaniemi S, Smith JN, Joutsensaari J, Laaksonen A. 2011.
European Integrated project on Aerosol Cloud Climate and Air Quality interactions (EUCAARI) ¿ integrating aerosol research from nano to global scales
Kulmala Markku, Asmi Ari, Lappalainen H K, Baltensperger U, Brenguier J-L, Facchini M C, Hansson H-C, Hov Ø, O'Dowd C D, Pöschl U, Wiedensohler A, Boers R, Boucher O, de Leeuw G, Denier van der Gon H A C, Feichter J, Krejci R, Laj P, Lihavainen H, Lohmann U, et al.. 2011. Atmospheric chemistry and physics. 11: 13061-13143 A1 Journal article (refereed), original research
General overview: European Integrated projects on aerosol cloud climate and air quality interactions (EUCAARI) ¿ Integrating aerosols research from nano to global scales
M. Kulmala, et al., Laaksonen, A., Lehtinen, K.E.J., A. Vaattovaara, P. et al.. 2011. Report series in aerosol science. 126: 192-198 D1 Article in a trade journal
Statistical proxy for sulphuric acid concentration
Mikkonen Santtu, Romakkaniemi Sami, Smith James N, Korhonen Hannele, Petäjä Tuukka, Plass-Duelmer Christian, Boy Michael, McMurry Peter H, Lehtinen Kari EJ, Joutsensaari Jorma, Hamed Amar, Mauldin Lee R, Birmili Wolfram, Arnold Frank, Kulmala Markku, Laaksonen Ari. Teoksessa: Markku Kulmala, Jaana Bäck, Hanna K. Lappalainen and Tuomo Nieminen(toim.) , 2011. Proceedings of the Finnish Center of Excellence and Graduate School in 'Physics, Chemistry, Biology and Meteorology ofAtmospheric Composition and Climate Change' Annual Workshop 18.¿20.5.2011. s. 261-264. A4 Conference proceedings
Changes in the production rate of secondary aerosol particles in Central Europe in view of decreasing SO2 emissions between 1996 and 2006
Hamed A, Birmili W, Joutsensaari J, Mikkonen S, Asmi A, Wehner B, Spindler G, Jaatinen A, Wiedensohler A, Korhonen H, Lehtinen, KEJ, & Laaksonen A. 2010. Atmospheric chemistry and physics. 10: 1071-1091 A1 Journal article (refereed), original research
Meteorological and trace gas factors affecting the number concentration of atmospheric aitken (dp = 50 nm) particles in the continental boundary layer: parameterization using a multivariate mixed effects model.
Mikkonen Santtu, Korhonen Hannele, Romakkaniemi Sami, Smith James N, Joutsensaari Jorma, Lehtinen Kari EJ, Hamed Amar, Breider Tom J, Birmili Wolfram, Spindler Gerald, Plass-Duelmer Christian, Facchini Maria Christina, Laaksonen Ari. Teoksessa: Markku Kulmala, Hanna K. Lappalainen, Ari Asmi and Tuomo Nieminen(toim.) , 2010. Proceedings of 2010 EUCAARI Annual Meeting, Helsinki 22.11-26.11.2010. s. 211-215. A4 Conference proceedings
Roadside aerosol study using hygroscopic, organic and volatility TDMAs: Characterization and mixing state
Tiitta P, Miettinen P, Vaattovaara P, Joutsensaari J, Petäjä T, Virtanen A, Raatikainen T, Aalto P, Portin H, Romakkaniemi S, Kokkola H, Lehtinen KEJ, Kulmala M & Laaksonen A. 2010. Atmospheric environment. 44: 976-986 A1 Journal article (refereed), original research

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Kari Lehtinen

Research groups

Analysis of atmospheric particle growth based on vapor concentrations measured at the high-altitude GAW station Chacaltaya in the Bolivian Andes

Application of the finite element method to the multicomponent general dynamic equation of aerosols

Assessing the climate and air quality effects of future aerosol mitigation in India using a global climate model combined with statistical downscaling

Opinion: The strength of long-Term comprehensive observations to meet multiple grand challenges in different environments and in the atmosphere

Scientific Overview on SLCPs: Characteristics, Impacts and Uncertainties

Deep-learning-based post-process correction of the aerosol parameters in the high-resolution Sentinel-3 Level-2 Synergy product

Effects of oligomerization and decomposition on the nanoparticle growth: a model study

Adsorptive uptake of water by semisolid secondary organic aerosols

Characterization and testing of a new environmental chamber

Communication: Kinetics of scavenging of small, nucleating clusters: First nucleation theorem and sum rules

Extrapolating particle concentration along the size axis in the nanometer size range requires discrete rate equations

MATCH-SALSA - Multi-scale Atmospheric Transport and CHemistry model coupled to the SALSA aerosol microphysics model - Part 1: Model description and evaluation

One year of Raman lidar observations of free-tropospheric aerosol layers over South Africa

Atmospheric submicron aerosol composition and particulate organic nitrate formation in a boreal forestland-urban mixed region

Characterization and testing of a new environmental chamber designed for emission aging studies

Comparing ECMWF AOD with AERONET observations at visible and UV wavelengths

Critical cluster size cannot in practice be determined by slope analysis in atmospherically relevant applications

Effect of water vapor on the determination of aerosol direct radiative effect based on the AERONET fluxes

Estimating atmospheric nucleation rates from size distribution measurements: Analytical equations for the case of size dependent growth rates

Observing wind, aerosol particles, cloud and precipitation: Finland's new ground-based remote-sensing network

Reallocation in modal aerosol models: impacts on predicting aerosol radiative effects

Representing situational knowledge acquired from sensor data for atmospheric phenomena

Role of microbial and chemical composition in toxicological properties of indoor and outdoor air particulate matter

The effect of cloudiness on new-particle formation: investigation of radiation levels

The effect of local sources on particle size and chemical composition and their role in aerosol-cloud interactions at Puijo measurement station

The role of low volatile organics on secondary organic aerosol formation

Aerosol Chemical Composition in Cloud Events by High Resolution Time-of-Flight Aerosol Mass Spectrometry

Characterization of Chemical and Microbial Species from Size-Segregated Indoor and Outdoor Particulate Samples

Climate and air quality trade-offs in altering ship fuel sulfur content

Determination of the size distribution of recombination products from atmospheric measurements

Direct Observations of Atmospheric Aerosol Nucleation

Estimating the Viscosity Range of SOA Particles Based on Their Coalescence Time

Estimating the contribution of ion-ion recombination to sub-2 nm cluster concentrations from atmospheric measurements

Influence of observed diurnal cycles of aerosol optical depth on aerosol direct radiative effect

Log-log slope analyses of simulated particle formation events at different conditions

Long-term measurements of cloud droplet concentrations and aerosol-cloud interactions in continental boundary layer clouds

Repairing the first nucleation theorem: Precritical cluster losses

Seasonal variation in the toxicological properties of size-segregated indoor and outdoor air particulate matter

The effect of early growth dynamics on determining particle formation rates of a nucleating burst

Using measurements of the aerosol charging state in determination of the particle growth rate and the proportion of ion-induced nucleation.

A method to study agglomerate breakup and bounce during impaction

A numerical comparison of different methods for determining the particle formation rate

A review of operational, regional-scale, chemical weather forecasting models in Europe

Biomass burning aerosols observed in Eastern Finland during the Russian wildfires in summer 2010 - Part 1: In-situ aerosol characterization

Biomass burning aerosols observed in Eastern Finland during the Russian wildfires in summer 2010 - Part 2: Remote sensing

Cloud Condensation Nucleus Production from Nucleation Events at a Semi-Rural Environment: Puijo station, Eastern Finland

Direct and indirect effects of sea spray geoengineering and the role of injected particle size

Evaluation of the sectional aerosol microphysics module SALSA implementation in ECHAM5-HAM aerosol-climate model

Impaction dynamics of TiO2 agglomerates with different properties

In-situ observations of Eyjafjallajökull ash particles by hot-air balloon

Measurement of the nucleation of atmospheric aerosol particles

Operational chemical weather forecasting models on a regional scale in Europe

Quantitative Characterization of Critical nanoclusters nucleated on large single molecules

Rethinking the application of the first nucleation theorem to particle formation

Seasonal cycle and source analyses of aerosol optical properties in a semi-urban environment at Puijo station in Eastern Finland

Stratospheric passenger flights are likely an inefficient geoengineering strategy

Surfactant effects in global simulations of cloud droplet activation

Technical Note: One year of Raman-lidar measurements in Gual Pahari EUCAARI site close to New Delhi in India - Seasonal characteristics of the aerosol vertical structure

Aerosol black carbon at five background measurement sites over Finland, a gateway to the Arctic.

Characterization of New Particle Formation Events in Kuopio, Finland Based on a three-year analysis

European Integrated project on Aerosol Cloud Climate and Air Quality interactions (EUCAARI) ¿ integrating aerosol research from nano to global scales

General overview: European Integrated projects on aerosol cloud climate and air quality interactions (EUCAARI) ¿ Integrating aerosols research from nano to global scales

Statistical proxy for sulphuric acid concentration

Changes in the production rate of secondary aerosol particles in Central Europe in view of decreasing SO2 emissions between 1996 and 2006

Meteorological and trace gas factors affecting the number concentration of atmospheric aitken (dp = 50 nm) particles in the continental boundary layer: parameterization using a multivariate mixed effects model.

Roadside aerosol study using hygroscopic, organic and volatility TDMAs: Characterization and mixing state