U. Horrak

Latest

• Estimating neutral nanoparticle steady-state size distribution and growth according to measurements of intermediate air ions
• Links between two different types of spectra of charged nanometer aerosol particles
• Atmospheric ions and nucleation: a review of observations
• General overview: European Integrated project on Aerosol Cloud Climate and Air Quality interactions (EUCAARI) - integrating aerosol research from nano to global scales
• Growth rates of nucleation mode particles in Hyytiala during 2003-2009: variation with particle size, season, data analysis method and ambient conditions
• Intercomparison of air ion spectrometers: an evaluation of results in varying conditions
• Atmospheric data over a solar cycle: no connection between galactic cosmic rays and new particle formation
• Atmospheric nucleation: highlights of the EUCAARI project and future directions
• Atmospheric sub-3 nm particles at high altitudes
• Atmospheric sub-3 nm particles at high altitudes
• EUCAARI ion spectrometer measurements at 12 European sites - analysis of new particle formation events
• On the roles of sulphuric acid and low-volatility organic vapours in the initial steps of atmospheric new particle formation
• Diffusion Distortions in a Differential Mobility Analyzer with Inclined Electric Field
• Negatively charged nanoparticles produced by splashing of water
• Formation and characteristics of ions and charged aerosol particles in a native Australian Eucalypt forest
• Variation and balance of positive air ion concentrations in a boreal forest
• Concentrations and fluxes of aerosol particles during the LAPBIAT measurement campaign at Varrio field station
• Identification and classification of the formation of intermediate ions measured in boreal forest
• Charging state of atmospheric nanoparticles during the nucleation burst events
• Factors of air ion balance in a coniferous forest according to measurements in Hyytiala, Finland