Results of the first air ion spectrometer calibration and intercomparison workshop (2009)
E. Asmi, M. Sipilä, H. E. Manninen, J. Vanhanen, K. Lehtipalo, S. Gagné, ...
The Air Ion Spectrometer (AIS) measures mobility and size distributions of atmospheric ions. The Neutral cluster and Air Ion Spectrometer (NAIS) can additionally measure neutral particles. The number...
I. Riipinen, H. E. Manninen, T. Yli-Juuti, M. Boy, M. Sipilä, M. Ehn, ...
Measurements on the composition of nanometer-sized atmospheric particles are the key to understand which vapors participate in the secondary aerosol formation processes. Knowledge on these processes...
H. E. Manninen, T. Nieminen, I. Riipinen, T. Yli-Juuti, S. Gagné, E. Asmi, ...
Despite the fact that frequent aerosol formation has been observed in various locations in the atmosphere, the overall magnitude of the new particle formation as a particle source is still unclear....
H. E. Manninen, T. Nieminen, I. Riipinen, T. Yli-Juuti, S. Gagné, E. Asmi, ...
Despite the fact that frequent aerosol formation has been observed in various locations in the atmosphere, the overall magnitude of the new particle formation as a particle source is still unclear....
M. Kulmala, I. Riipinen, T. Nieminen, M. Hulkkonen, L. Sogacheva, H. E. Manninen, ...
Aerosol particles affect the Earth's radiative balance by directly scattering and absorbing solar radiation and, indirectly, through their activation into cloud droplets. Both effects are known with...
Applicability of condensation particle counters to measure atmospheric clusters (2008)
Sipilä, M., Lehtipalo, K., Kulmala, M., Petäjä, T., Junninen, H., Aalto, P. P., ...
The ambient and laboratory molecular and ion clusters were investigated. Here we present data on the ambient concentrations of both charged and uncharged molecular clusters as well as the performance...
Applicability of condensation particle counters to measure atmospheric clusters (2008)
Sipilä, M., Lehtipalo, K., Kulmala, M., Petäjä, T., Junninen, H., Aalto, P. P., ...
The ambient and laboratory molecular and ion clusters were investigated. Here we present data on the ambient concentrations of both charged and uncharged molecular clusters as well as the performance...
Applicability of condensation particle counters to measure atmospheric clusters (2008)
Sipilä, M., Lehtipalo, K., Kulmala, M., Petäjä, T., Junninen, H., Aalto, P. P., ...
Applicability of condensation particle counters to measure atmospheric clusters (2008)
M. Sipilä, K. Lehtipalo, M. Kulmala, T. Petäjä, H. Junninen, P. P. Aalto, ...
This study presents an evaluation of a pulse height condensation particle counter (PH-CPC) and an expansion condensation particle counter (E-CPC) in terms of measuring ambient and...
Applicability of condensation particle counters to measure atmospheric clusters (2008)
M. Sipilä, K. Lehtipalo, M. Kulmala, T. Petäjä, H. Junninen, P. P. Aalto, ...
The ambient and laboratory molecular and ion clusters were investigated. Here we present data on the ambient concentrations of both charged and uncharged molecular clusters as well as the performance...
I. Riipinen, H. E. Manninen, T. Yli-Juuti, M. Boy, M. Sipilä, M. Ehn, ...
Measurements on the composition of nanometer-sized atmospheric particles are the key to understand which vapors participate in the secondary aerosol formation processes. Knowledge on these processes...
Results of the first air ion spectrometer calibration and intercomparison workshop (2008)
E. Asmi, M. Sipilä, H. E. Manninen, J. Vanhanen, K. Lehtipalo, S. Gagné, ...
The air ion spectrometer (AIS) measures mobility and size distributions of atmospheric ions. The neutral air ion spectrometer (NAIS) can additionally measure neutral particles. The number of the...