Zobrazeno 1 - 10
of 51
pro vyhledávání: '"U. Hõrrak"'
Autor:
L. M. F. Barreira, A. Ylisirniö, I. Pullinen, A. Buchholz, Z. Li, H. Lipp, H. Junninen, U. Hõrrak, S. M. Noe, A. Krasnova, D. Krasnov, K. Kask, E. Talts, Ü. Niinemets, J. Ruiz-Jimenez, S. Schobesberger
Publikováno v:
Atmospheric Chemistry and Physics, Vol 21, Pp 11781-11800 (2021)
Secondary organic aerosols (SOAs) formed from biogenic volatile organic compounds (BVOCs) constitute a significant fraction of atmospheric particulate matter and have been recognized to significantly affect the climate and air quality. Atmospheric SO
Externí odkaz:
https://doaj.org/article/f943007f41f149798e5b0472718903c0
Global analysis of continental boundary layer new particle formation based on long-term measurements
Autor:
T. Nieminen, V.-M. Kerminen, T. Petäjä, P. P. Aalto, M. Arshinov, E. Asmi, U. Baltensperger, D. C. S. Beddows, J. P. Beukes, D. Collins, A. Ding, R. M. Harrison, B. Henzing, R. Hooda, M. Hu, U. Hõrrak, N. Kivekäs, K. Komsaare, R. Krejci, A. Kristensson, L. Laakso, A. Laaksonen, W. R. Leaitch, H. Lihavainen, N. Mihalopoulos, Z. Németh, W. Nie, C. O'Dowd, I. Salma, K. Sellegri, B. Svenningsson, E. Swietlicki, P. Tunved, V. Ulevicius, V. Vakkari, M. Vana, A. Wiedensohler, Z. Wu, A. Virtanen, M. Kulmala
Publikováno v:
Atmospheric Chemistry and Physics, Vol 18, Pp 14737-14756 (2018)
Atmospheric new particle formation (NPF) is an important phenomenon in terms of global particle number concentrations. Here we investigated the frequency of NPF, formation rates of 10 nm particles, and growth rates in the size range of 10–25
Externí odkaz:
https://doaj.org/article/4f9a1a7b47ee421d8b2b270d59fdfb0b
Autor:
J. Größ, A. Hamed, A. Sonntag, G. Spindler, H. E. Manninen, T. Nieminen, M. Kulmala, U. Hõrrak, C. Plass-Dülmer, A. Wiedensohler, W. Birmili
Publikováno v:
Atmospheric Chemistry and Physics, Vol 18, Pp 1835-1861 (2018)
This paper revisits the atmospheric new particle formation (NPF) process in the polluted Central European troposphere, focusing on the connection with gas-phase precursors and meteorological parameters. Observations were made at the research statio
Externí odkaz:
https://doaj.org/article/3927bf8176b84ecfadec03c85fad4d0a
Autor:
H. K. Lappalainen, V.-M. Kerminen, T. Petäjä, T. Kurten, A. Baklanov, A. Shvidenko, J. Bäck, T. Vihma, P. Alekseychik, M. O. Andreae, S. R. Arnold, M. Arshinov, E. Asmi, B. Belan, L. Bobylev, S. Chalov, Y. Cheng, N. Chubarova, G. de Leeuw, A. Ding, S. Dobrolyubov, S. Dubtsov, E. Dyukarev, N. Elansky, K. Eleftheriadis, I. Esau, N. Filatov, M. Flint, C. Fu, O. Glezer, A. Gliko, M. Heimann, A. A. M. Holtslag, U. Hõrrak, J. Janhunen, S. Juhola, L. Järvi, H. Järvinen, A. Kanukhina, P. Konstantinov, V. Kotlyakov, A.-J. Kieloaho, A. S. Komarov, J. Kujansuu, I. Kukkonen, E.-M. Duplissy, A. Laaksonen, T. Laurila, H. Lihavainen, A. Lisitzin, A. Mahura, A. Makshtas, E. Mareev, S. Mazon, D. Matishov, V. Melnikov, E. Mikhailov, D. Moisseev, R. Nigmatulin, S. M. Noe, A. Ojala, M. Pihlatie, O. Popovicheva, J. Pumpanen, T. Regerand, I. Repina, A. Shcherbinin, V. Shevchenko, M. Sipilä, A. Skorokhod, D. V. Spracklen, H. Su, D. A. Subetto, J. Sun, A. Y. Terzhevik, Y. Timofeyev, Y. Troitskaya, V.-P. Tynkkynen, V. I. Kharuk, N. Zaytseva, J. Zhang, Y. Viisanen, T. Vesala, P. Hari, H. C. Hansson, G. G. Matvienko, N. S. Kasimov, H. Guo, V. Bondur, S. Zilitinkevich, M. Kulmala
Publikováno v:
Atmospheric Chemistry and Physics, Vol 16, Pp 14421-14461 (2016)
The northern Eurasian regions and Arctic Ocean will very likely undergo substantial changes during the next decades. The Arctic–boreal natural environments play a crucial role in the global climate via albedo change, carbon sources and sinks as
Externí odkaz:
https://doaj.org/article/c83a15beea5d4be4997bd718e488f377
Publikováno v:
Atmospheric Chemistry and Physics, Vol 13, Iss 18, Pp 9597-9603 (2013)
Continuous measurements of intermediate air ion size distributions were carried out in the small town Tartu, Estonia, from 1 April 2010 through 7 November 2011. The intermediate ions are charged aerosol particles of diameter 1.5–7.5 nm. In this pap
Externí odkaz:
https://doaj.org/article/b98201c47cec411091556322fb688b1c
Autor:
D. Simpson, B. Sierau, M. Shiraiwa, H. Siebert, X. J. Shen, Ø. Seland, K. Sellegri, J. Schwarz, D. Rosenfeld, G. Roberts, C. L. Reddington, S. Pryor, C. Plass-Duelmer, A. S. H. Prévôt, C. Pio, J. J. Pienaar, A. Petzold, H. Pawlowska, T. S. Panwar, D. O'Donnell, E. Nemitz, W. T. Morgan, A. Minikin, S. Mirme, J. Merikanto, G. McMeeking, H. E. Manninen, R. Makkonen, L. V. Rizzo, K. E. J. Lehtinen, V. A. Lanz, L. Labonnote, A. Laaksonen, L. Laakso, J.-E. Kristjánsson, M. Komppula, P. Kolmonen, Z. Klimont, G. Kiss, A. Kirkevåg, A. Kiendler-Scharr, M. Kanakidou, M. Josipovic, T. Iversen, Y. Iinuma, U. Hõrrak, A. Hyvärinen, M. Hu, C. Hoose, T. Hoffmann, H. Herrmann, R. M. Harrison, T. Hamburger, P. Halloran, L. Gomes, C. George, C. Fountoukis, A. M. Fjaeraa, M. Fischer, S. Decesari, S. Gilardoni, B. D'Anna, S. Crumeyrolle, H. Coe, S. L. Clegg, J. F. Burkhart, F. Canonaco, M. Bilde, J. P. Beukes, R. Bergström, D. C. S. Beddows, H. Baars, P. Artaxo, S. Arabas, M. Ammann, M. Amann, C. Alves, E. Vignati, E. Swietlicki, A. Stohl, M. Schulz, I. Riipinen, C. Pilinis, T. Mentel, G. McFiggans, U. Lohmann, H. Lihavainen, P. Laj, J. Feichter, R. Krejci, H. A. C. Denier van der Gon, G. de Leeuw, O. Boucher, R. Boers, A. Wiedensohler, U. Pöschl, Ø. Hov, C. D. O'Dowd, H.-C. Hansson, J.-L. Brenguier, M. C. Facchini, U. Baltensperger, H. K. Lappalainen, M. Kulmala, A. Asmi, J. Y. Sun, D. Topping, P. Tunved, P. Vaattovaara, V. Vakkari, J. P. Veefkind, A. Visschedijk, H. Vuollekoski, R. Vuolo, B. Wehner, J. Wildt, S. Woodward, D. R. Worsnop, G.-J. van Zadelhoff, A. A. Zardini, K. Zhang, P. G. van Zyl, V.-M. Kerminen, K. S Carslaw, S. N. Pandis
Publikováno v:
Atmospheric Chemistry and Physics, Vol 11, Iss 24, Pp 13061-13143 (2011)
In this paper we describe and summarize the main achievements of the European Aerosol Cloud Climate and Air Quality Interactions project (EUCAARI). EUCAARI started on 1 January 2007 and ended on 31 December 2010 leaving a rich legacy including: (a) a
Externí odkaz:
https://doaj.org/article/08143f6fed1f410998730268277a92a2
Autor:
M. Kulmala, J. Rinne, T. Petäjä, M. Dal Maso, J. Patokoski, H. E. Manninen, U. Hõrrak, E. Asmi, P. P. Aalto, A. Hirsikko, T. Yli-Juuti, T. Nieminen, I. Riipinen
Publikováno v:
Atmospheric Chemistry and Physics, Vol 11, Iss 24, Pp 12865-12886 (2011)
The condensational growth rate of aerosol particles formed in atmospheric new particle formation events is one of the most important factors influencing the lifetime of these particles and their ability to become climatically relevant. Diameter growt
Externí odkaz:
https://doaj.org/article/50154861906e49c5807a9e3f66437db2
Autor:
S. Gagné, K. Lehtipalo, H. E. Manninen, T. Nieminen, S. Schobesberger, A. Franchin, T. Yli-Juuti, J. Boulon, A. Sonntag, S. Mirme, A. Mirme, U. Hõrrak, T. Petäjä, E. Asmi, M. Kulmala
Publikováno v:
Atmospheric Measurement Techniques, Vol 4, Iss 5, Pp 805-822 (2011)
We evaluated 11 air ion spectrometers from Airel Ltd. after they had spent one year in field measurements as a part of the EUCAARI project: 5 Air Ion Spectrometers (AIS), 5 Neutral cluster and Air Ion Spectrometers (NAIS) and one Airborne NAIS (ANAIS
Externí odkaz:
https://doaj.org/article/938cc6289cfb4d108bd5ec2317952052
Autor:
A. Hirsikko, T. Nieminen, S. Gagné, K. Lehtipalo, H. E. Manninen, M. Ehn, U. Hõrrak, V.-M. Kerminen, L. Laakso, P. H. McMurry, A. Mirme, S. Mirme, T. Petäjä, H. Tammet, V. Vakkari, M. Vana, M. Kulmala
Publikováno v:
Atmospheric Chemistry and Physics, Vol 11, Iss 2, Pp 767-798 (2011)
This review is based on ca. 260 publications, 93 of which included data on the temporal and spatial variation of the concentration of small ions (−3. However, concentrations up to 5000 cm−3 have been observed. The results are in agreement with ob
Externí odkaz:
https://doaj.org/article/9233dfc64adb4e7b9c4be12ce7201bbf
Autor:
V.-M. Kerminen, T. Petäjä, H. E. Manninen, P. Paasonen, T. Nieminen, M. Sipilä, H. Junninen, M. Ehn, S. Gagné, L. Laakso, I. Riipinen, H. Vehkamäki, T. Kurten, I. K. Ortega, M. Dal Maso, D. Brus, A. Hyvärinen, H. Lihavainen, J. Leppä, K. E. J. Lehtinen, A. Mirme, S. Mirme, U. Hõrrak, T. Berndt, F. Stratmann, W. Birmili, A. Wiedensohler, A. Metzger, J. Dommen, U. Baltensperger, A. Kiendler-Scharr, T. F. Mentel, J. Wildt, P. M. Winkler, P. E. Wagner, A. Petzold, A. Minikin, C. Plass-Dülmer, U. Pöschl, A. Laaksonen, M. Kulmala
Publikováno v:
Atmospheric Chemistry and Physics, Vol 10, Iss 22, Pp 10829-10848 (2010)
Within the project EUCAARI (European Integrated project on Aerosol Cloud Climate and Air Quality interactions), atmospheric nucleation was studied by (i) developing and testing new air ion and cluster spectrometers, (ii) conducting homogeneous nuclea
Externí odkaz:
https://doaj.org/article/29a04498086749b3a8d1bdea283a19ee