Zobrazeno 1 - 10
of 262
pro vyhledávání: '"P. Keronen"'
Autor:
M. Sipilä, N. Sarnela, K. Neitola, T. Laitinen, D. Kemppainen, L. Beck, E.-M. Duplissy, S. Kuittinen, T. Lehmusjärvi, J. Lampilahti, V.-M. Kerminen, K. Lehtipalo, P. P. Aalto, P. Keronen, E. Siivola, P. A. Rantala, D. R. Worsnop, M. Kulmala, T. Jokinen, T. Petäjä
Publikováno v:
Atmospheric Chemistry and Physics, Vol 21, Pp 17559-17576 (2021)
The metallurgical industry in the Kola Peninsula, north-west Russia, form, after Norilsk, Siberia, the second largest source of air pollution in the Arctic and subarctic domain. Sulfur dioxide (SO2) emissions from the ore smelters are transported to
Externí odkaz:
https://doaj.org/article/8a0f43f75bb24cd789d8bb0c6e34a418
Autor:
K. Leino, J. Lampilahti, P. Poutanen, R. Väänänen, A. Manninen, S. Buenrostro Mazon, L. Dada, A. Franck, D. Wimmer, P. P. Aalto, L. R. Ahonen, J. Enroth, J. Kangasluoma, P. Keronen, F. Korhonen, H. Laakso, T. Matilainen, E. Siivola, H. E. Manninen, K. Lehtipalo, V.-M. Kerminen, T. Petäjä, M. Kulmala
Publikováno v:
Atmospheric Chemistry and Physics, Vol 19, Pp 4127-4138 (2019)
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 meteor
Externí odkaz:
https://doaj.org/article/1aa6b05695a74d348f886947fc3ebc67
Autor:
X. Chen, L. L. J. Quéléver, P. L. Fung, J. Kesti, M. P. Rissanen, J. Bäck, P. Keronen, H. Junninen, T. Petäjä, V.-M. Kerminen, M. Kulmala
Publikováno v:
Atmospheric Chemistry and Physics, Vol 18, Pp 49-63 (2018)
We investigated the concentrations and vertical profiles of ozone over a 20-year period (1996–2016) at the SMEAR II station in southern Finland. Our results showed that the typical daily median ozone concentrations were in the range of 20–50 p
Externí odkaz:
https://doaj.org/article/10a9f18ead514e818225c13c51f55a90
Autor:
D. Mogensen, R. Gierens, J. N. Crowley, P. Keronen, S. Smolander, A. Sogachev, A. C. Nölscher, L. Zhou, M. Kulmala, M. J. Tang, J. Williams, M. Boy
Publikováno v:
Atmospheric Chemistry and Physics, Vol 15, Iss 7, Pp 3909-3932 (2015)
Using the 1-D atmospheric chemistry transport model SOSAA, we have investigated the atmospheric reactivity of a boreal forest ecosystem during the HUMPPA-COPEC-10 campaign (summer 2010, at SMEAR~II in southern Finland). For the very first time, we
Externí odkaz:
https://doaj.org/article/d2145b2a33c442e4b63adb10f77df721
Autor:
R. Oswald, M. Ermel, K. Hens, A. Novelli, H. G. Ouwersloot, P. Paasonen, T. Petäjä, M. Sipilä, P. Keronen, J. Bäck, R. Königstedt, Z. Hosaynali Beygi, H. Fischer, B. Bohn, D. Kubistin, H. Harder, M. Martinez, J. Williams, T. Hoffmann, I. Trebs, M. Sörgel
Publikováno v:
Atmospheric Chemistry and Physics, Vol 15, Iss 2, Pp 799-813 (2015)
Atmospheric concentrations of nitrous acid (HONO), one of the major precursors of the hydroxyl radical (OH) in the troposphere, significantly exceed the values predicted by the assumption of a photostationary state (PSS) during daytime. Therefore, ad
Externí odkaz:
https://doaj.org/article/f307c3de36bc4eef9e28ab457f63e461
Autor:
K. Hens, A. Novelli, M. Martinez, J. Auld, R. Axinte, B. Bohn, H. Fischer, P. Keronen, D. Kubistin, A. C. Nölscher, R. Oswald, P. Paasonen, T. Petäjä, E. Regelin, R. Sander, V. Sinha, M. Sipilä, D. Taraborrelli, C. Tatum Ernest, J. Williams, J. Lelieveld, H. Harder
Publikováno v:
Atmospheric Chemistry and Physics, Vol 14, Iss 16, Pp 8723-8747 (2014)
Measurements of OH and HO2 radicals were conducted in a pine-dominated forest in southern Finland during the HUMPPA-COPEC-2010 (Hyytiälä United Measurements of Photochemistry and Particles in Air – Comprehensive Organic Precursor Emission and
Externí odkaz:
https://doaj.org/article/474e7e4b56844a7ca15a1d091e8e1bbb
Autor:
S. Saarikoski, S. Carbone, M. J. Cubison, R. Hillamo, P. Keronen, C. Sioutas, D. R. Worsnop, J. L. Jimenez
Publikováno v:
Atmospheric Measurement Techniques, Vol 7, Iss 7, Pp 2121-2135 (2014)
The performance of the miniature Versatile Aerosol Concentration Enrichment System (m-VACES; Geller et al., 2005) was investigated in laboratory and field studies using online instruments. Laboratory tests focused on the behavior of monodisperse ammo
Externí odkaz:
https://doaj.org/article/d49510e61f7f4efc8348b1bfe02e9c4f
Autor:
A. Virkkula, J. Levula, T. Pohja, P. P. Aalto, P. Keronen, S. Schobesberger, C. B. Clements, L. Pirjola, A.-J. Kieloaho, L. Kulmala, H. Aaltonen, J. Patokoski, J. Pumpanen, J. Rinne, T. Ruuskanen, M. Pihlatie, H. E. Manninen, V. Aaltonen, H. Junninen, T. Petäjä, J. Backman, M. Dal Maso, T. Nieminen, T. Olsson, T. Grönholm, J. Aalto, T. H. Virtanen, M. Kajos, V.-M. Kerminen, D. M. Schultz, J. Kukkonen, M. Sofiev, G. De Leeuw, J. Bäck, P. Hari, M. Kulmala
Publikováno v:
Atmospheric Chemistry and Physics, Vol 14, Iss 9, Pp 4473-4502 (2014)
A prescribed fire experiment was conducted on 26 June 2009 in Hyytiälä, Finland, to study aerosol and trace gas emissions from prescribed fires of slash fuels and the effects of fire on soil properties in a controlled environment. A 0.8 ha forest n
Externí odkaz:
https://doaj.org/article/30c883beace34a298142c40f335bc2c2
Autor:
E.-M. Kyrö, R. Väänänen, V.-M. Kerminen, A. Virkkula, T. Petäjä, A. Asmi, M. Dal Maso, T. Nieminen, S. Juhola, A. Shcherbinin, I. Riipinen, K. Lehtipalo, P. Keronen, P. P. Aalto, P. Hari, M. Kulmala
Publikováno v:
Atmospheric Chemistry and Physics, Vol 14, Iss 9, Pp 4383-4396 (2014)
The smelter industry in Kola Peninsula is the largest source of anthropogenic SO2 in the Arctic part of Europe and one of the largest within the Arctic domain. Due to socio-economic changes in Russia, the emissions have been decreasing especially sin
Externí odkaz:
https://doaj.org/article/1c6e94f5abef4badb83385a900e9bf58
Autor:
C. J. Kampf, A. L. Corrigan, A. M. Johnson, W. Song, P. Keronen, R. Königstedt, J. Williams, L. M. Russell, T. Petäjä, H. Fischer, T. Hoffmann
Publikováno v:
Atmospheric Chemistry and Physics, Vol 12, Iss 14, Pp 6145-6155 (2012)
The first dataset for summertime boreal forest concentrations of two atmospherically relevant α-dicarbonyl compounds, glyoxal (Gly) and methylglyoxal (Mgly) on PM2.5 aerosol was obtained during the HUMPPA-COPEC-2010 field measurement intensive in Hy
Externí odkaz:
https://doaj.org/article/c8977dca26f34142bff5aaef2602f4a6