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Secondary datasets and data products

Secondary datasets are derived from measurement data, where the measurements are reported to the ACTRIS topic data repositories. Secondary datasets are derived by e.g. averaging, filtering of events, interpolation of measurement data and are usually the a result of analysis for special studies or processed for model experiments. This archive stores secondary data sets to provide long term access for all users. The measurement datasets are regularly updated mainly due to extension of new years, secondary datasets are normally not updated over time.

Access to secondary datasets

Collocated observations of cloud condensation nuclei, particle size distributions, and chemical composition,
By Julia Schmale, Silvia Henning, Jeroen Sebastiaan Henzing, Helmi Keskinen, Karine Sellegri, Jurgita Ovadnevaite, Aikaterini Bougiatioti, Nikos Kalivitis, Iasonas Stavroulas, Anne Jefferson, Minsu Park, Patrick Schlag, Adam Kristensson, Yoko Iwamoto,, Kirsty Pringle, Carly Reddington, Pasi Aalto, Mikko Äijälä, Urs Baltensperger, Wolfram Birmili, Nicolas Bukowiecki, Mikael Ehn, Ann Mari Fjæraa, Markus Fiebig, Göran Frank, Roman Fröhlich, Arnoud Frumau, Masaki Furuya, Emanuel Hammer, Liine Heikkinen, Erik Herrmann, Rupert Holzinger, Hiroyuki Hyono, Maria Kanakidou, Astrid Kiendler-Scharr, Kento Kinochi, Gerard Kos, Markku Kulmala, Nikolaos Mihalopoulos, Ghislain Motos, Athanasios Nenes, Colin O’Dowd, Mikhail Paramonov, Tuukka Petäjä, David Picard, Laurent Poulain, André Prévôt, Jay Slowik, Andre Sonntag, Erik Swietlicki, Birgitta Svenningsson, Hiroshi Tsurumaru, Alfred Wiedensohler, Cerina Wittbom, John Ogren, Atsushi Matsuki, Seong Soo Yum, Cathrine Lund Myhre, Ken Carslaw, Frank Stratmann, and Martin Gysel (2017):  Scientific Data, doi:10.1038/sdata.2017.3[pertaining data] [data policy]
Warming-induced increase in aerosol number concentration likely to moderate climate change,
By Pauli Paasonen, Ari Asmi, Tuukka Petäjä, Maija K. Kajos, Mikko Äijälä, Heikki Junninen, Thomas Holst, Jonathan P. D. Abbatt, Almut Arneth, Wolfram Birmili, Hugo Denier van der Gon, Amar Hamed, András Hoffer, Lauri Laakso, Ari Laaksonen, W. Richard Leaitch, Christian Plass-Dülmer, Sara C. Pryor, Petri Räisänen, Erik Swietlicki, Alfred Wiedensohler, Douglas R. Worsnop, Veli-Matti Kerminen and Markku Kulmala (2013):  Nature Geoscience, DOI:10.1038/NGEO1800[pertaining data] [data policy]
Number size distributions and seasonality of submicron particles in Europe 2008–2009,
By Asmi, A., Wiedensohler, A., Laj, P., Fjaeraa, A.-M., Sellegri, K., Birmili, W., Weingartner, E., Baltensperger, U., Zdimal, V., Zikova, N., Putaud, J.-P., Marinoni, A., Tunved, P., Hansson, H.-C., Fiebig, M., Kivekäs, N., Lihavainen, H., Asmi, E., Ulevicius, V., Aalto, P. P., Swietlicki, E., Kristensson, A., Mihalopoulos, N., Kalivitis, N., Kalapov, I., Kiss, G., de Leeuw, G., Henzing, B., Harrison, R. M., Beddows, D., O'Dowd, C., Jennings, S. G., Flentje, H., Weinhold, K., Meinhardt, F., Ries, L. and Kulmala, M. (2011):  Atmospheric Chemistry and Physics, DOI:10.5194/acp-11-5505-2011. [article]
Aerosol decadal trends - Part 1: In-situ optical measurements at GAW and IMPROVE stations,
By Collaud Coen, M., Andrews, E., Asmi, A., Baltensperger, U., Bukowiecki, N., Day, D., Fiebig, M., Fjaeraa, A. M., Flentje, H., Hyvärinen, A., Jefferson, A., Jennings, S. G., Kouvarakis, G., Lihavainen, H., Lund Myhre, C., Malm, W. C., Mihapopoulos, N., Molenar, J. V., O'Dowd, C., Ogren, J. A., Schichtel, B. A., Sheridan, P., Virkkula, A., Weingartner, E., Weller, R. and Laj, P. (2013):  Atmospheric Chemistry and Physics, DOI:10.5194/acp-13-869-2013. [article] [pertaining data] [data policy]
Aerosol decadal trends - Part 2: In-situ aerosol particle number concentrations at GAW and ACTRIS stations
By Asmi, A., Collaud Coen, M., Ogren, J. A., Andrews, E., Sheridan, P., Jefferson, A., Weingartner, E., Baltensperger, U., Bukowiecki, N., Lihavainen, H., Kivekäs, N., Asmi, E., Aalto, P. P., Kulmala, M., Wiedensohler, A., Birmili, W., Hamed, A., O'Dowd, C., G Jennings, S., Weller, R., Flentje, H., Fjaeraa, A. M., Fiebig, M., Myhre, C. L., Hallar, A. G., Swietlicki, E., Kristensson, A. and Laj, P. (2013)  Atmospheric Chemistry and Physics, DOI:10.5194/acp-13-895-2013. [article] [pertaining data] [data policy]
Access to aerosol profile datasets measured during particular events or campaigns, archived in EARLINET DB. Aerosol Profile Datasets.

Picture: Eyjafjallajokull volcano, April 17, 2010. (HALLDOR KOLBEINS/AFP/Getty Images)