Almuth Neuberger, Fredrik Mattsson, Paul Zieger
The dataset provides measured aerosol particle number size distributions from 8 February to 4 April 2022 at San Pietro Capofiume, northern Italy, during the Fog and Aerosol InteRAction Research Italy (FAIRARI) campaign 2021/2022.
Total particle number concentration and the aerosol particle number size distributions in the size range 13.3 – 792 nm were measured with a custom built differential mobility particle sizer (DMPS).
Atmospheric aerosol particles affect climate by scattering and absorbing solar radiation and by modifying cloud properties. The particle size distribution is an important parameter that determines for example the atmospheric residence time, the optical properties, and the interaction with atmospheric water (cloud activation).
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Citation
Almuth Neuberger, Fredrik Mattsson, Paul Zieger (2024) Aerosol particle number size distribution measured during the FAIRARI campaign, Po valley, Italy, February – April 2022. Dataset version 1. Bolin Centre Database. https://doi.org/10.17043/fairari-2021-2022-aerosol-dmps1-1
References
Neuberger A, Decesari S, Aktypis A, Andersen H, Baumgardner D, Bianchi F, Busetto M, Cai J, Cermak J, Dipu S, Ekman A, Fuzzi S, Gramlich Y, Haslett SL, Heikkinen L, Joutsensaari J, Kaltsonoudis C, Kangasluoma J, Krejci R, Lupi A, Marinoni A, Matrali A, Mattsson F, Mohr C, Nenes A, Paglione M, Pandis SN, Patel A, Riipinen I, Rinaldi M, Steimer SS, Stolzenburg D, Sulo J, Vasilakopoulou CN, Zieger P (2024) From molecules to droplets: The Fog and Aerosol InteRAction Research Italy (FAIRARI) 2021/22 campaign. Bulletin of the American Meteorological Society. https://doi.org/10.1175/bams-d-23-0166.1
Karlsson L, Baccarini A, Duplessis P, Baumgardner D, Brooks IM, Chang RY‐W., Dada L, Dällenbach KR, Heikkinen L, Krejci R, Leaitch WR, Leck C, Partridge DG, Salter ME, Wernli H, Wheeler MJ, Schmale J, Zieger P (2022) Physical and Chemical Properties of Cloud Droplet Residuals and Aerosol Particles During the Arctic Ocean 2018 Expedition. Journal of Geophysical Research: Atmospheres 127. https://doi.org/10.1029/2021jd036383
Data description
The data are provided in one comma-separated values (.csv) file with the following content:
- Column 1:
Time Time (midpoint of scan) in UTC. Format: yyyy-mm-dd HH:MM:SS
- Column 2:
Ntot_cpc Total number concentration (measured by MCPC) in particles per cubic centimeter
- Column 3 – 38: Number concentration, dN/dlogD per cubic centimeter per diameter bin (electrical mobility diameter). The column name gives the upper bin diameter in meters.
The aerosol particle number size distributions are given at ambient conditions and are stated as outputted by the instrument (no corrections due to losses applied).
File size: 1.77 MB. Number of rows, including header: 6 502.
Comments
Measurement system
Aerosol particle number size distributions in the size range 13.3 – 792 nm were measured behind a whole-air inlet using a custom built differential mobility particle sizer (DMPS) which uses a mixing condensation particle counter (MCPC; Model 1720 from Brechtel Manufacturing Inc., USA). The DMPS measurements were made at a time resolution of 12 minutes per scan across 36 size bins.
An additional MCPC 1720 was measuring the total particle number concentration. An instrument description can be found in Karlsson et al. (2022).
FAIRARI campaign
The data was recorded from 8 February, 2022, until 4 April, 2022, at the San Pietro Capofiume, Italy, as part of the FAIRARI 2021/22 campaign (see Neuberger at al. 2024).
San Pietro Capofiume is located 30 km north-east of the city of Bologna, Italy, in a rural area.
Coordinates: 44.65° N, 11.62° E.
Please consult and cite Neuberger et al. (2024) when using the data.
Associated datasets
The current dataset is part of a collection of datasets from The fog and aerosol interaction research Italy (FAIRARI) campaign, November 2021 to May 2022.