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29 Research products, page 1 of 3

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  • Open Access English
    Authors: 
    Lampilahti, Janne; Manninen, Hanna Elina; Leino, Katri; Väänänen, Riikka; Manninen, Antti; Buenrostro Mazon, Stephany; Nieminen, Tuomo; Leskinen, Matti; Enroth, Joonas; Bister, Marja; +6 more
    Project: AKA | ‘Centre of Excellence in ... (272041), EC | ATM-GTP (742206), EC | PEGASOS (265148), AKA | Mechanisms, pathways and ... (314798), AKA | Mechanisms, pathways and ... (314799), EC | ACTRIS-2 (654109)

    Recent studies have shown the importance of new particle formation (NPF) to global cloud condensation nuclei (CCN) production, as well as to air pollution in megacities. In addition to the necessary presence of low-volatility vapors that can form new aerosol particles, ...

  • Other research product . Other ORP type . 2020
    Open Access
    Authors: 
    Juan Miguel Valverde; Riccardo De Feo; Artem Shatillo; Jussi Tohka;
    Publisher: Zenodo
    Project: EC | GenomMed (740264), AKA | Predictive brain image an... (316258)

    MedicDeepLabv3+ trained models. For MedicDeepLabv3+ v1.1.0, please download trained_models_v1.1.0.zip

  • Open Access English
    Authors: 
    Stolzenburg, Dominik; Simon, Mario; Ranjithkumar, Ananth; Kürten, Andreas; Lehtipalo, Katrianne; Gordon, Hamish; Ehrhart, Sebastian; Finkenzeller, Henning; Pichelstorfer, Lukas; Nieminen, Tuomo; +68 more
    Project: SNSF | CLOUD (20FI20_159851), AKA | Molecular steps of gas-to... (296628), FCT | CERN/FIS-COM/0014/2017 (CERN/FIS-COM/0014/2017), AKA | Centre of Excellence in A... (307331), AKA | From Autoxidation to Auto... (299574), SNSF | CLOUD Infrastructure proj... (20FI20_172622), NSF | Collaborative Research: C... (1801329), AKA | Oxidised organic vapours ... (310682), EC | GASPARCON (714621), EC | NANODYNAMITE (616075),...

    In the present-day atmosphere, sulfuric acid is the most important vapour for aerosol particle formation and initial growth. However, the growth rates of nanoparticles (<10 nm) from sulfuric acid remain poorly measured. Therefore, the effect of stabilizing bas...

  • Open Access English
    Authors: 
    Kouznetsov, Rostislav; Sofiev, Mikhail; Vira, Julius; Stiller, Gabriele;
    Project: AKA | Advanced Analysis of Stra... (139126), EC | MARCOPOLO (606953)

    The paper presents a comparative study of age of air (AoA) derived from several approaches: a widely used passive-tracer accumulation method, the SF6 accumulation, and a direct calculation of an ideal-age tracer. The simulations were performed with the Eulerian chemistr...

  • Open Access English
    Authors: 
    Kupiainen, Kaarle Juhana; Aamaas, Borgar; Savolahti, Mikko; Karvosenoja, Niko; Paunu, Ville-Veikko;
    Project: AKA | Keeping the Arctic White:... (286699), AKA | Novel Assessment of Black... (296644), EC | ECLIPSE (282688)

    We present a case study where emission metric values from different studies are applied to estimate global and Arctic temperature impacts of emissions from a northern European country. This study assesses the climate impact of Finnish air pollutants and greenhouse gas e...

  • Open Access English
    Authors: 
    Leino, Katri; Lampilahti, Janne; Poutanen, Pyry; Väänänen, Riikka; Manninen, Antti; Buenrostro Mazon, Stephany; Dada, Lubna; Franck, Anna; Wimmer, Daniela; Aalto, Pasi P.; +13 more
    Project: EC | ATM-GTP (742206), EC | BACCHUS (603445), EC | ERA-PLANET (689443), AKA | NanoBioMass - Natural Sec... (307537), AKA | ‘Centre of Excellence in ... (272041)

    This work presents airborne observations of sub-3 nm particles in the lower troposphere and investigates new particle formation (NPF) within an evolving boundary layer (BL). We studied particle concentrations together with supporting gas and meteorological data i...

  • Open Access English
    Authors: 
    Mikola, Juha; Virtanen, Tarmo; Linkosalmi, Maiju; Vähä, Emmi; Nyman, Johanna; Postanogova, Olga; Räsänen, Aleksi; Kotze, D. Johan; Laurila, Tuomas; Juutinen, Sari; +2 more
    Project: AKA | ‘Centre of Excellence in ... (272041), AKA | Constraining uncertaintie... (291736), EC | PAGE21 (282700)

    Arctic tundra ecosystems will play a key role in future climate change due to intensifying permafrost thawing, plant growth and ecosystem carbon exchange, but monitoring these changes may be challenging due to the heterogeneity of Arctic landscapes. We examined spatial ...

  • Open Access English
    Authors: 
    Erkkilä, Kukka-Maaria; Ojala, Anne; Bastviken, David; Biermann, Tobias; Heiskanen, Jouni J.; Lindroth, Anders; Peltola, Olli; Rantakari, Miitta; Vesala, Timo; Mammarella, Ivan;
    Project: EC | GHG-LAKE (612642), AKA | Carbon Cycle in Lake-Atmo... (281196), AKA | ‘Centre of Excellence in ... (272041), AKA | Biosphere-Atmosphere Feed... (284701), AKA | Biosphere-Atmosphere Feed... (282842), EC | METLAKE (725546)

    Freshwaters bring a notable contribution to the global carbon budget by emitting both carbon dioxide (CO2) and methane (CH4) to the atmosphere. Global estimates of freshwater emissions traditionally use a wind-speed-based gas transfer velocity, kCC (introduced by Cole a...

  • Open Access English
    Authors: 
    Kokkola, Harri; Kühn, Thomas; Laakso, Anton; Bergman, Tommi; Lehtinen, Kari E. J.; Mielonen, Tero; Arola, Antti; Stadtler, Scarlet; Korhonen, Hannele; Ferrachat, Sylvaine; +10 more
    Project: AKA | Extensive study on aeroso... (283031), AKA | Regional Climate Impacts ... (287440), AKA | Centre of Excellence in A... (307331), UKRI | Global Aerosol Synthesis ... (NE/J023515/1), EC | RECAP (724602), EC | CRESCENDO (641816), NSF | Collaborative Research: S... (0002035), NSF | Measurement of Aerosol Ch... (0002698), EC | BACCHUS (603445), AKA | Refining climate effects ... (308292),...

    In this paper, we present the implementation and evaluation of the aerosol microphysics module SALSA2.0 in the framework of the aerosol–chemistry–climate model ECHAM-HAMMOZ. It is an alternative microphysics module to the default modal microphysics scheme M7 in ECHAM-HA...

  • Open Access English
    Authors: 
    Susiluoto, Jouni; Raivonen, Maarit; Backman, Leif; Laine, Marko; Makela, Jarmo; Peltola, Olli; Vesala, Timo; Aalto, Tuula;
    Project: AKA | Novel soil management pra... (312932), AKA | ‘Centre of Excellence in ... (272041), EC | EMBRACE (282672), EC | VERIFY (776810), EC | CRESCENDO (641816), AKA | Carbon Balance under Chan... (285630)

    Estimating methane (CH4) emissions from natural wetlands is complex, and the estimates contain large uncertainties. The models used for the task are typically heavily parameterized and the parameter values are not well known. In this study, we perform a Bayesian model c...