Zobrazeno 1 - 10
of 253
pro vyhledávání: '"L. Heikkinen"'
Autor:
L. Heikkinen, D. G. Partridge, S. Blichner, W. Huang, R. Ranjan, P. Bowen, E. Tovazzi, T. Petäjä, C. Mohr, I. Riipinen
Publikováno v:
Atmospheric Chemistry and Physics, Vol 24, Pp 5117-5147 (2024)
Accounting for the condensation of organic vapors along with water vapor (co-condensation) has been shown in adiabatic cloud parcel model (CPM) simulations to enhance the number of aerosol particles that activate to form cloud droplets. The boreal fo
Externí odkaz:
https://doaj.org/article/3a29f2972e4b4586bcf3ee6b1728c8e6
Autor:
A. Heitto, C. Wu, D. Aliaga, L. Blacutt, X. Chen, Y. Gramlich, L. Heikkinen, W. Huang, R. Krejci, P. Laj, I. Moreno, K. Sellegri, F. Velarde, K. Weinhold, A. Wiedensohler, Q. Zha, F. Bianchi, M. Andrade, K. E. J. Lehtinen, C. Mohr, T. Yli-Juuti
Publikováno v:
Atmospheric Chemistry and Physics, Vol 24, Pp 1315-1328 (2024)
Early growth of atmospheric particles is essential for their survival and ability to participate in cloud formation. Many different atmospheric vapors contribute to the growth, but even the main contributors still remain poorly identified in many env
Externí odkaz:
https://doaj.org/article/2046b1b3fe634544bafc02071b10ced8
Autor:
Q. Zha, W. Huang, D. Aliaga, O. Peräkylä, L. Heikkinen, A. M. Koenig, C. Wu, J. Enroth, Y. Gramlich, J. Cai, S. Carbone, A. Hansel, T. Petäjä, M. Kulmala, D. Worsnop, V. Sinclair, R. Krejci, M. Andrade, C. Mohr, F. Bianchi
Publikováno v:
Atmospheric Chemistry and Physics, Vol 23, Pp 4559-4576 (2023)
Air ions are the key components for a series of atmospheric physicochemical interactions, such as ion-catalyzed reactions, ion-molecule reactions, and ion-induced new particle formation (NPF). They also control atmospheric electrical properties with
Externí odkaz:
https://doaj.org/article/345bdc3aacc845ca86ce00b5015a7ecf
Autor:
W. Scholz, J. Shen, D. Aliaga, C. Wu, S. Carbone, I. Moreno, Q. Zha, W. Huang, L. Heikkinen, J. L. Jaffrezo, G. Uzu, E. Partoll, M. Leiminger, F. Velarde, P. Laj, P. Ginot, P. Artaxo, A. Wiedensohler, M. Kulmala, C. Mohr, M. Andrade, V. Sinclair, F. Bianchi, A. Hansel
Publikováno v:
Atmospheric Chemistry and Physics, Vol 23, Pp 895-920 (2023)
Dimethyl sulfide (DMS) is the primary natural contributor to the atmospheric sulfur burden. Observations concerning the fate of DMS oxidation products after long-range transport in the remote free troposphere are, however, sparse. Here we present qua
Externí odkaz:
https://doaj.org/article/d62bef613e884020b08ee2b88c47be87
Autor:
S. Isokääntä, P. Kim, S. Mikkonen, T. Kühn, H. Kokkola, T. Yli-Juuti, L. Heikkinen, K. Luoma, T. Petäjä, Z. Kipling, D. Partridge, A. Virtanen
Publikováno v:
Atmospheric Chemistry and Physics, Vol 22, Pp 11823-11843 (2022)
Atmospheric aerosol particle concentrations are strongly affected by various wet processes, including below and in-cloud wet scavenging and in-cloud aqueous-phase oxidation. We studied how wet scavenging and cloud processes affect particle concentrat
Externí odkaz:
https://doaj.org/article/4f108ed209b845fdb180429198fd7cf3
Autor:
L. Heikkinen, M. Äijälä, K. R. Daellenbach, G. Chen, O. Garmash, D. Aliaga, F. Graeffe, M. Räty, K. Luoma, P. Aalto, M. Kulmala, T. Petäjä, D. Worsnop, M. Ehn
Publikováno v:
Atmospheric Chemistry and Physics, Vol 21, Pp 10081-10109 (2021)
The Station for Measuring Ecosystem–Atmosphere Relations (SMEAR) II, located within the boreal forest of Finland, is a unique station in the world due to the wide range of long-term measurements tracking the Earth–atmosphere interface. In this st
Externí odkaz:
https://doaj.org/article/b1c02936db6c43a59bf80c25ca459b58
Autor:
W. Huang, H. Li, N. Sarnela, L. Heikkinen, Y. J. Tham, J. Mikkilä, S. J. Thomas, N. M. Donahue, M. Kulmala, F. Bianchi
Publikováno v:
Atmospheric Chemistry and Physics, Vol 21, Pp 8961-8977 (2021)
The molecular composition and volatility of gaseous organic compounds were investigated during April–July 2019 at the Station for Measuring Ecosystem – Atmosphere Relations (SMEAR) II situated in a boreal forest in Hyytiälä, southern Finland. I
Externí odkaz:
https://doaj.org/article/38071555ba2e4644b507e96d3360e90f
Autor:
H. Li, M. R. Canagaratna, M. Riva, P. Rantala, Y. Zhang, S. Thomas, L. Heikkinen, P.-M. Flaud, E. Villenave, E. Perraudin, D. Worsnop, M. Kulmala, M. Ehn, F. Bianchi
Publikováno v:
Atmospheric Chemistry and Physics, Vol 21, Pp 4123-4147 (2021)
Atmospheric organic vapors play essential roles in the formation of secondary organic aerosol. Source identification of these vapors is thus fundamental to understanding their emission sources and chemical evolution in the atmosphere and their furthe
Externí odkaz:
https://doaj.org/article/3b7ce8a3d72f4b5bb970ce9ab603d32b
Autor:
M. Paramonov, S. Drossaart van Dusseldorp, E. Gute, J. P. D. Abbatt, P. Heikkilä, J. Keskinen, X. Chen, K. Luoma, L. Heikkinen, L. Hao, T. Petäjä, Z. A. Kanji
Publikováno v:
Atmospheric Chemistry and Physics, Vol 20, Pp 6687-6706 (2020)
Ice-nucleating particle (INP) measurements were performed in the boreal environment of southern Finland at the Station for Measuring Ecosystem–Atmosphere Relations (SMEAR II) in the winter–spring of 2018. Measurements with the Portable Ice Nuclea
Externí odkaz:
https://doaj.org/article/4a76943f971542b39ee92204771b7415
Autor:
Y. Zhang, O. Peräkylä, C. Yan, L. Heikkinen, M. Äijälä, K. R. Daellenbach, Q. Zha, M. Riva, O. Garmash, H. Junninen, P. Paatero, D. Worsnop, M. Ehn
Publikováno v:
Atmospheric Chemistry and Physics, Vol 20, Pp 5945-5961 (2020)
Our understanding of atmospheric oxidation chemistry has improved significantly in recent years, greatly facilitated by developments in mass spectrometry. The generated mass spectra typically contain vast amounts of information on atmospheric sources
Externí odkaz:
https://doaj.org/article/8460491e904740119644f27070b859b1