Warming-induced increase in aerosol number concentration likely to moderate climate change (original) (raw)

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Acknowledgements

This work was funded by European Research Council (ATMNUCLE, 227463), Academy of Finland (Center of Excellence Program project 1118615; projects 11750, 127210, 132640 and 139656), European Commission sixth Framework program (EUCAARI, contract no 036833-2; EUSAAR, contract no 026140), European Commission seventh Framework program (ACTRIS, contract no 262254; PEGASOS, contract no 265148), Maj and Tor Nessling Foundation (projects 2010143, 2011200, 2012443 and 2013325) and the Otto A. Malm foundation. For providing data, we acknowledge the Physical Sciences Division, Earth System Research Laboratory, NOAA, Boulder, Colorado (for the boundary layer height data acquired from their web site at http://www.esrl.noaa.gov/psd/), the Hungarian Meteorological Service, Gerald Spindler, Pasi P. Aalto and Harald Flentje. We thank Ville Vakkari for help in quality assurance of Botsalano data and students and staff of North-West University (Mafikeng Campus), RSA, for weekly maintenance. The various measurements were supported by the German Federal Ministry for the Environment (FE 370343200), Environment Canada, NSERC, CFCAS-CAFC, the National Science Foundation (#0544745 and supplement, and 1102309), the Swedish Research Council (projects 2007-3745, 2007-4619 and 2010-4683) and the Swedish Research Council for Environment, Agricultural Sciences and Spatial Planning (Formas, project 2009-615).

Author information

Author notes

  1. Pauli Paasonen and Ari Asmi: These authors contributed equally to this work

Authors and Affiliations

  1. Department of Physics, University of Helsinki, FI-00014, Finland
    Pauli Paasonen, Ari Asmi, Tuukka Petäjä, Maija K. Kajos, Mikko Äijälä, Heikki Junninen, Douglas R. Worsnop, Veli-Matti Kerminen & Markku Kulmala
  2. International Institute for Applied Systems Analysis, A-2361 Laxenburg, Austria
    Pauli Paasonen
  3. Centre for Geo Biosphere Science, Lund University, S-22362 Lund, Sweden
    Thomas Holst
  4. Department of Chemistry, University of Toronto, Ontario, M5S 3H6, Canada
    Jonathan P. D. Abbatt
  5. Karlsruhe Institute of Technology, Institute of Meteorology and Climate Research/Atmospheric Environmental Research, 82467 Garmisch-Partenkirchen, Germany
    Almut Arneth
  6. Leibniz Institute for Tropospheric Research, 04318 Leipzig, Germany
    Wolfram Birmili & Alfred Wiedensohler
  7. TNO Built Environment and Geosciences, 3584 CB Utrecht, The Netherlands
    Hugo Denier van der Gon
  8. Department of Applied Physics, University of Eastern Finland, 70210 Kuopio, Finland
    Amar Hamed, Ari Laaksonen & Douglas R. Worsnop
  9. MTA-PE Air Chemistry Research Group, 8200 Veszprém, Hungary
    András Hoffer
  10. Finnish Meteorological Institute (FMI), FI-00101 Helsinki, Finland
    Lauri Laakso, Ari Laaksonen, Petri Räisänen & Douglas R. Worsnop
  11. School of Physical and Chemical Sciences, North-West University, Potchefstroom 2520, South Africa
    Lauri Laakso
  12. Science and Technology Branch, Environment Canada, Toronto, Ontario, M3H 5T4, Canada
    W. Richard Leaitch
  13. Deutscher Wetterdienst, Meteorologisches Observatorium Hohenpeissenberg, 82383 Hohenpeissenberg, Germany
    Christian Plass-Dülmer
  14. Department of Geological Sciences, Indiana University, Bloomington, Indiana 47405, USA
    Sara C. Pryor
  15. Division of Nuclear Physics, Lund University, S-221 00 Lund, Sweden
    Erik Swietlicki
  16. Aerodyne Research, Inc., Billerica, Massachusetts 01821-3976, USA
    Douglas R. Worsnop

Authors

  1. Pauli Paasonen
  2. Ari Asmi
  3. Tuukka Petäjä
  4. Maija K. Kajos
  5. Mikko Äijälä
  6. Heikki Junninen
  7. Thomas Holst
  8. Jonathan P. D. Abbatt
  9. Almut Arneth
  10. Wolfram Birmili
  11. Hugo Denier van der Gon
  12. Amar Hamed
  13. András Hoffer
  14. Lauri Laakso
  15. Ari Laaksonen
  16. W. Richard Leaitch
  17. Christian Plass-Dülmer
  18. Sara C. Pryor
  19. Petri Räisänen
  20. Erik Swietlicki
  21. Alfred Wiedensohler
  22. Douglas R. Worsnop
  23. Veli-Matti Kerminen
  24. Markku Kulmala

Contributions

P.P. had the original idea; P.P. and A. Asmi made the data analysis; A. Asmi made the figures; M.K.K., T.H. and C.P-D. made the monoterpene concentration measurements and the data pre-analysis; M.Ä., H.J. and J.P.D.A. made the aerosol mass concentration measurements; A. Asmi, V-M.K., A.L. and P.R. made the calculations of the feedback strength; A. Arneth, W.B., A. Hamed, A. Hoffer, T.H., L.L., W.R.L., S.C.P., E.S., A.W. and T.P. provided the particle number size distribution and meteorological data; H.D.v.d.G. provided the anthropogenic emission inventory data; T.P., D.R.W. and M.K. supervised the analysis and writing; P.P., A. Asmi and V-M.K. wrote the paper; All authors contributed with their comments to the paper.

Corresponding authors

Correspondence toPauli Paasonen or Ari Asmi.

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The authors declare no competing financial interests.

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Paasonen, P., Asmi, A., Petäjä, T. et al. Warming-induced increase in aerosol number concentration likely to moderate climate change.Nature Geosci 6, 438–442 (2013). https://doi.org/10.1038/ngeo1800

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