T
Tuukka Petäjä
Researcher at University of Helsinki
Publications - 620
Citations - 38508
Tuukka Petäjä is an academic researcher from University of Helsinki. The author has contributed to research in topics: Aerosol & Particle. The author has an hindex of 82, co-authored 526 publications receiving 30572 citations. Previous affiliations of Tuukka Petäjä include Helsinki Institute of Physics & National Center for Atmospheric Research.
Papers
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Book ChapterDOI
How to Utilise the Knowledge of Causal Responses
Pertti Hari,Mikko Havimo,Heljä-Sisko Helmisaari,Liisa Kulmala,Eero Nikinmaa,Timo Vesala,Jouni Räisänen,Tuukka Petäjä,Erkki Siivola,Heikki Tuomenvirta,Jaana Bäck,John Grace,Federico Magnani,Twan van Noije,Jukka Pumpanen,David Stevenson,Markku Kulmala,Sampo Smolander,Ilona Riipinen,Miikka Dal Maso +19 more
TL;DR: In this paper, the effects of thinnings and whole-tree harvesting on wood production and the responses of forest ecosystem to nitrogen deposition in more detail were investigated. And the authors provided causal explanations of various phenomena in forests.
Journal ArticleDOI
Improved counting statistics of an ultrafine differential mobility particle size spectrometer system
TL;DR: In this article , a modified Airmodus A20 (A20) with a significantly higher aerosol optics flow rate compared to conventional ultrafine particle size spectrometers can greatly enhance the counting statistics in the sub-10nm range.
Posted ContentDOI
A comparison of three optical absorption photometers at a boreal forest site – effects of different correction algorithms
Krista Luoma,Aki Virkkula,Pasi Aalto,Katrianne Lehtipalo,Katrianne Lehtipalo,Tuukka Petäjä,Markku Kulmala +6 more
TL;DR: In this paper, a comparison of three absorption photometers that measured the absorption coefficient (σabs) of ambient aerosol particles in 2012-2017 at SMEAR II, a measurement station located in a boreal forest in southern Finland is presented.
Posted ContentDOI
Cloud response to co-condensation of water and organic vapors over the boreal forest
Claudia Mohr,Liine Heikkinen,Wei Huang,Tuukka Petäjä,Yifei Li,Raad Tahat,Christophe Tropeau,Thomas Meysen,John Knight +8 more
TL;DR: In this article , a suite of CPM simulations initialized with a comprehensive set of concurrent aerosol observations collected in the boreal forest of Finland during Spring 2014 is performed, and the authors highlight the potential significance of co-condensation in pristine boreal environments close to sources of fresh ultrafine particles.
On the formation of biogenic secondary organic aerosol in chemical transport models: an evaluation of the WRF-CHIMERE (v2020r2) model with a focus over the Finnish boreal forest
TL;DR: In this paper , an evaluation of the regional chemical transport model (CTM) WRF-CHIMERE (v2020r2) for the formation of biogenic secondary organic aerosol (BSOA) with a focus over the Finnish boreal forest is presented.