T. Kurten

Publications (18)5.52 Total impact

• Article: The effect of H2SO4 - amine clustering on chemical ionization mass spectrometry (CIMS) measurements of gas-phase sulfuric acid

  T Kurten, T Petaja, J Smith, IK Ortega, M Sipila, H Junninen, M Ehn, H Vehkamaki, L Mauldin, DR Worsnop, M Kulmala
  Atmospheric Chemistry and Physics. 11(6):3007-3019.
• Article: The role of ammonia in sulfuric acid ion induced nucleation (vol 8, pg 2859, 2008)

  IK ORTEGA, T KURTEN, H VEHKAMAKI, M KULMALA
  ATMOSPHERIC CHEMISTRY AND PHYSICS. 9(19):7431-7434.
• Article: Atmospheric nucleation: highlights of the EUCAARI project and future directions

  V.-M. Kerminen, T. Petäjä, H. E. Manninen, P. Paasonen, T. Nieminen, M. Sipilä, H. Junninen, M. Ehn, S. Gagné, L. Laakso, [......], T. F. Mentel, J. Wildt, P. M. Winkler, P. E. Wagner, A Petzold, A. Minikin, C. Plass-Dülmer, U. Pöschl, A. Laaksonen, M. Kulmala
  Atmospheric Chemistry and Physics, v.10, 10829-10848 (2010).
• Article: Atmospheric nucleation: highlights of the EUCAARI project and future directions

  VM Kerminen, T Petaja, HE Manninen, P Paasonen, T Nieminen, M Sipila, H Junninen, M Ehn, S Gagne, L Laakso, [......], TF Mentel, J Wildt, PM Winkler, PE Wagner, A Petzold, A Minikin, C Plass-Dulmer, U Poschl, A Laaksonen, M Kulmala
  Atmospheric Chemistry and Physics. 10(22):10829-10848.
• Article: Atmospheric Cluster Dynamics Code: a flexible method for solution of the birth-death equations

  M. J. McGrath, T. Olenius, I. K. Ortega, V. Loukonen, P. Paasonen, T. Kurten, M. Kulmala, H. Vehkamaki
  [show abstract] [hide abstract]
  ABSTRACT: The Atmospheric Cluster Dynamics Code (ACDC) is presented and explored.
  ATMOSPHERIC CHEMISTRY AND PHYSICS. 12(5):-2355.
• Article: Amines are likely to enhance neutral and ion-induced sulfuric acid-water nucleation in the atmosphere more effectively than ammonia

  T Kurten, V Loukonen, H Vehkamaki, M Kulmala
  ATMOSPHERIC CHEMISTRY AND PHYSICS. 8(14):4095-4103.
• Article: Ab initio and density functional theory reinvestigation of gas-phase sulfuric acid monohydrate and ammonium hydrogen sulfate

  T Kurten, MR Sundberg, H Vehkamaki, M Noppel, J Blomqvist, M Kulmala
  JOURNAL OF PHYSICAL CHEMISTRY A. 110(22):7178-7188.
• Article: Ab initio and density functional theory reinvestigation of gas-phase sulfuric acid monohydrate and ammonium hydrogen sulfate

  T Kurten, MR Sundberg, H Vehkamaki, M Noppel, J Blomqvist, M Kulmala
  [show abstract] [hide abstract]
  ABSTRACT: We have calculated the thermochemical parameters for the reactions H2SO4
  JOURNAL OF PHYSICAL CHEMISTRY A. 110(22):-7188.
• Article: From quantum chemical formation free energies to evaporation rates

  I. K. Ortega, O. Kupiainen, T. Kurten, T. Olenius, O. Wilkman, M. J. McGrath, V. Loukonen, H. Vehkamaki
  [show abstract] [hide abstract]
  ABSTRACT: Atmospheric new particle formation is an important source of atmospheric
  ATMOSPHERIC CHEMISTRY AND PHYSICS. 12(1):-235.
• Article: Estimation of different forest-related contributions to the radiative balance using observations in southern Finland

  T Kurten, M Kulmala, M Dal Maso, T Suni, A Reissell, H Vehkamaki, P Hari, A Laaksonen, Y Viisanen, T Vesala
  [show abstract] [hide abstract]
  ABSTRACT: The effect of boreal forest on the Earth's energy budget was estimated
  BOREAL ENVIRONMENT RESEARCH. 8(4):-285.
• Source

  Available from: atmos-chem-phys.org

  Article: Estimating the NH3 : H2SO4 ratio of nucleating clusters in atmospheric conditions using quantum chemical methods

  T. Kurten, L. Torpo, M. R. Sundberg, V.-M. Kerminen, H. Vehkamaki, M. Kulmala
  ATMOSPHERIC CHEMISTRY AND PHYSICS. 7(10):-2773.
• Article: The role of ammonia in sulfuric acid ion induced nucleation (vol 8, pg 2859, 2008)

  I K Ortega, T Kurten, H Vehkamaki, M Kulmala
  ATMOSPHERIC CHEMISTRY AND PHYSICS. 9(19):7431-7434.
• Article: Estimation of different forest-related contributions to the radiative balance using observations in southern Finland

  T Kurten, M Kulmala, M Dal Maso, T Suni, A Reissell, H Vehkamaki, P Hari, A Laaksonen, Y Viisanen, T Vesala
  BOREAL ENVIRONMENT RESEARCH. 8(4):275-285.
• Article: Amines are likely to enhance neutral and ion-induced sulfuric acid-water nucleation in the atmosphere more effectively than ammonia

  T. Kurten, V. Loukonen, H. Vehkamaki, M. Kulmala
  [show abstract] [hide abstract]
  ABSTRACT: We have studied the structure and formation thermodynamics of dimer
  ATMOSPHERIC CHEMISTRY AND PHYSICS. 8(14):-4103.
• Article: Atmospheric nucleation: highlights of the EUCAARI project and future directions

  V. -M. Kerminen, T. Petaja, H. E. Manninen, P. Paasonen, T. Nieminen, M. Sipila, H. Junninen, M. Ehn, S. Gagne, L. Laakso, [......], T. F. Mentel, J. Wildt, P. M. Winkler, P. E. Wagner, A. Petzold, A. Minikin, C. Plass-Duelmer, U. Poeschl, A. Laaksonen, M. Kulmala
  [show abstract] [hide abstract]
  ABSTRACT: Within the project EUCAARI (European Integrated project on Aerosol Cloud
  ATMOSPHERIC CHEMISTRY AND PHYSICS. 10(22):-10848.
• Source

  Available from: Torsten Berndt

  Article: Atmospheric nucleation: highlights of the EUCAARI project and future directions

  V.-M. Kerminen, T. Petäjä, H. E. Manninen, P. Paasonen, T. Nieminen, M. Sipilä, H. Junninen, M. Ehn, S. Gagné, L. Laakso, [......], T. F. Mentel, J. Wildt, P. M. Winkler, P. E. Wagner, Andreas Petzold, Andreas Minikin, C. Plass-Dülmer, U. Pöschl, A. Laaksonen, M. Kulmala
  [show abstract] [hide abstract]
  ABSTRACT: Within the project EUCAARI (European Integrated project on Aerosol Cloud Climate and Air Quality interactions), atmospheric nucleation was studied by (i) developing and testing new air ion and cluster spectrometers, (ii) conducting homogeneous nucleation experiments for sulphate and organic systems in the laboratory, (iii) investigating atmospheric nucleation mechanism under field conditions, and (iv) applying new theoretical and modelling tools for data interpretation and development of parameterisations. The current paper provides a synthesis of the obtained results and identifies the remaining major knowledge gaps related to atmospheric nucleation. The most important technical achievement of the project was the development of new instruments for measuring sub-3 nm particle populations, along with the extensive application of these instruments in both the laboratory and the field. All the results obtained during EUCAARI indicate that sulphuric acid plays a central role in atmospheric nucleation. However, also vapours other than sulphuric acid are needed to explain the nucleation and the subsequent growth processes, at least in continental boundary layers. Candidate vapours in this respect are some organic compounds, ammonia, and especially amines. Both our field and laboratory data demonstrate that the nucleation rate scales to the first or second power of the nucleating vapour concentration(s). This agrees with the few earlier field observations, but is in stark contrast with classical thermodynamic nucleation theories. The average formation rates of 2-nm particles were found to vary by almost two orders of magnitude between the different EUCAARI sites, whereas the formation rates of charged 2-nm particles varied very little between the sites. Overall, our observations are indicative of frequent, yet moderate, ion-induced nucleation usually outweighed by much stronger neutral nucleation events in the continental lower troposphere. The most concrete outcome of the EUCAARI nucleation studies are the new semi-empirical nucleation rate parameterizations based on field observations, along with updated aerosol formation parameterizations.
  ATMOSPHERIC CHEMISTRY AND PHYSICS 10(2010):10829-10848. · 5.52 Impact Factor
• Article: Estimation of different forest-related contributions to the radiative balance using observations in southern Finland

  T KURTEN, M KULMALA, M DAL MASO, et al
  8:275-285.
• Article: Atmospheric nucleation: highlights of the EUCAARI project and future directions

  VM Kerminen, T Petaja, HE Manninen, P Paasonen, T Nieminen, M Sipila, H Junninen, M Ehn, S Gagne, L Laakso, [......], TF Mentel, J Wildt, PM Winkler, PE Wagner, A Petzold, A Minikin, C Plass-Dulmer, U Poschl, A Laaksonen, M Kulmala
  10:10829-10848.