Preprints
https://doi.org/10.5194/acp-2016-556
© Author(s) 2016. This work is distributed under
the Creative Commons Attribution 3.0 License.
the Creative Commons Attribution 3.0 License.
https://doi.org/10.5194/acp-2016-556
© Author(s) 2016. This work is distributed under
the Creative Commons Attribution 3.0 License.
the Creative Commons Attribution 3.0 License.
18 Jul 2016
Status: this preprint was under review for the journal ACP. A revision for further review has not been submitted.
Vertical and horizontal variation of aerosol number size distribution in the boreal environment
Abstract. This study explores the vertical and horizontal variability of the particle number size distribution from two flight measurements campaigns over a boreal forest in Hyytiälä, Finland during May–June 2013 and March–April 2014, respectively. Our other aims were to study the spatial extent of new particle formation events and to compare the airborne observation with the ground measurements from the SMEAR II (Station for Measuring Ecosystem-Atmosphere Relations) field station located in Hyytiälä. The airborne measurements extended vertically 3.8 km and horizontally 30 km from the station. A Cessna 172 aircraft was used as a measurement platform. The measured parameters included the particle number concentration (> 3 nm) and particle number size distribution (10–400 nm). The airborne data used in this study were equal to 111 flight hours. The measurements showed that despite local fluctuations there was a good agreement between the on-ground and airborne measurements inside the planetary boundary layer. On median, the airborne total number concentration was found to be 10 % larger than at the ground level. The seasonal and meteorological differences between the campaigns were reflected in aerosol properties. NPF days showed areas of intensified NPF on a scale from kilometres up to couple of tens of kilometres in the planetary boundary layer. NPF was also observed frequently in the free troposphere.
How to cite. Väänänen, R., Krejci, R., Manninen, H. E., Manninen, A., Lampilahti, J., Buenrostro Mazon, S., Nieminen, T., Yli-Juuti, T., Kontkanen, J., Asmi, A., Aalto, P. P., Keronen, P., Pohja, T., O'Connor, E., Kerminen, V.-M., Petäjä, T., and Kulmala, M.: Vertical and horizontal variation of aerosol number size distribution in the boreal environment, Atmos. Chem. Phys. Discuss. [preprint], https://doi.org/10.5194/acp-2016-556, in review, 2016.
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Status: closed (peer review stopped)
Status: closed (peer review stopped)
AC: Author comment | RC: Referee comment | SC: Short comment | EC: Editor comment
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- Supplement
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SC1: 'Comment on Väänänen et al', Wolfgang Junkermann, 01 Sep 2016
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AC1: 'Author's response to SC1', Riikka Väänänen, 28 Feb 2017
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AC1: 'Author's response to SC1', Riikka Väänänen, 28 Feb 2017
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RC1: 'Review of Vertical and horizontal variation of aerosol number size distribution in the boreal environment', Anonymous Referee #1, 06 Sep 2016
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AC2: 'Author's response to Referee 1', Riikka Väänänen, 28 Feb 2017
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AC2: 'Author's response to Referee 1', Riikka Väänänen, 28 Feb 2017
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RC2: 'Review on Väänänen et al.', Anonymous Referee #2, 26 Oct 2016
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AC3: 'Author's response to Referee 2', Riikka Väänänen, 01 Mar 2017
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AC3: 'Author's response to Referee 2', Riikka Väänänen, 01 Mar 2017
Status: closed (peer review stopped)
Status: closed (peer review stopped)
AC: Author comment | RC: Referee comment | SC: Short comment | EC: Editor comment
- Printer-friendly version
- Supplement
-
SC1: 'Comment on Väänänen et al', Wolfgang Junkermann, 01 Sep 2016
-
AC1: 'Author's response to SC1', Riikka Väänänen, 28 Feb 2017
-
AC1: 'Author's response to SC1', Riikka Väänänen, 28 Feb 2017
-
RC1: 'Review of Vertical and horizontal variation of aerosol number size distribution in the boreal environment', Anonymous Referee #1, 06 Sep 2016
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AC2: 'Author's response to Referee 1', Riikka Väänänen, 28 Feb 2017
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AC2: 'Author's response to Referee 1', Riikka Väänänen, 28 Feb 2017
-
RC2: 'Review on Väänänen et al.', Anonymous Referee #2, 26 Oct 2016
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AC3: 'Author's response to Referee 2', Riikka Väänänen, 01 Mar 2017
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AC3: 'Author's response to Referee 2', Riikka Väänänen, 01 Mar 2017
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Cited
11 citations as recorded by crossref.
- Zeppelin-led study on the onset of new particle formation in the planetary boundary layer J. Lampilahti et al. 10.5194/acp-21-12649-2021
- Combining airborne in situ and ground-based lidar measurements for attribution of aerosol layers A. Nikandrova et al. 10.5194/acp-18-10575-2018
- Aerosol particle formation in the upper residual layer J. Lampilahti et al. 10.5194/acp-21-7901-2021
- Ultrafine Particles in the Lower Troposphere: Major Sources, Invisible Plumes, and Meteorological Transport Processes W. Junkermann & J. Hacker 10.1175/BAMS-D-18-0075.1
- Unprecedented levels of ultrafine particles, major sources, and the hydrological cycle W. Junkermann & J. Hacker 10.1038/s41598-022-11500-5
- Vertical profiles of sub-3 nm particles over the boreal forest K. Leino et al. 10.5194/acp-19-4127-2019
- Spatial distribution and occurrence probability of regional new particle formation events in eastern China X. Shen et al. 10.5194/acp-18-587-2018
- Helicopter-borne observations of the continental background aerosol in combination with remote sensing and ground-based measurements S. Düsing et al. 10.5194/acp-18-1263-2018
- Review of aircraft measurements over China: aerosol, atmospheric photochemistry, and cloud J. Quan & X. Jia 10.1016/j.atmosres.2020.104972
- Direct measurement of new particle formation based on tethered airship around the top of the planetary boundary layer in eastern China X. Qi et al. 10.1016/j.atmosenv.2019.04.024
- Roll vortices induce new particle formation bursts in the planetary boundary layer J. Lampilahti et al. 10.5194/acp-20-11841-2020
Latest update: 23 Apr 2024
Riikka Väänänen
Department of Physics , P.O. Box 64, FI-00014 University of Helsinki, Finland
Radovan Krejci
Stockholm University, Department of Environmental Science and Analytical Chemistry & Bolin Centre for Climate Research, SE-10691 Stockholm, Sweden
Department of Physics , P.O. Box 64, FI-00014 University of Helsinki, Finland
Hanna E. Manninen
Department of Physics , P.O. Box 64, FI-00014 University of Helsinki, Finland
Antti Manninen
Department of Physics , P.O. Box 64, FI-00014 University of Helsinki, Finland
Janne Lampilahti
Department of Physics , P.O. Box 64, FI-00014 University of Helsinki, Finland
Stephany Buenrostro Mazon
Department of Physics , P.O. Box 64, FI-00014 University of Helsinki, Finland
Tuomo Nieminen
Department of Applied Physics, University of Eastern Finland, P.O. Box 1627, FI-70211 Kuopio, Finland
Department of Physics , P.O. Box 64, FI-00014 University of Helsinki, Finland
Taina Yli-Juuti
Department of Applied Physics, University of Eastern Finland, P.O. Box 1627, FI-70211 Kuopio, Finland
Department of Physics , P.O. Box 64, FI-00014 University of Helsinki, Finland
Jenni Kontkanen
Department of Physics , P.O. Box 64, FI-00014 University of Helsinki, Finland
Department of Physics , P.O. Box 64, FI-00014 University of Helsinki, Finland
Pasi P. Aalto
Department of Physics , P.O. Box 64, FI-00014 University of Helsinki, Finland
Petri Keronen
Department of Physics , P.O. Box 64, FI-00014 University of Helsinki, Finland
Toivo Pohja
Department of Physics , P.O. Box 64, FI-00014 University of Helsinki, Finland
SMEAR II measurement station, Hyytiäläntie 124, 35500 Korkeakoski, Finland
Ewan O'Connor
Finnish Meteorological Institute, P.O. BOX 503, FI-00101 Helsinki, Finland
Veli-Matti Kerminen
Department of Physics , P.O. Box 64, FI-00014 University of Helsinki, Finland
Tuukka Petäjä
Department of Physics , P.O. Box 64, FI-00014 University of Helsinki, Finland
Markku Kulmala
Department of Physics , P.O. Box 64, FI-00014 University of Helsinki, Finland
Short summary
A light aircraft was used as a platform to explore the horizontal and vertical variability of the aerosol particles over a boreal forest in Central Finland. This information is needed when data measured at ground level station is extrapolated and parameterized to represent the
conditions of the larger scale. The measurements showed that despite local fluctuations there was a good agreement between the on-ground and airborne measurements inside the planetary boundary layer.
A light aircraft was used as a platform to explore the horizontal and vertical variability of...
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