Manchester Ice Nucleus Counter (MINC) measurements from the 2007 International workshop on Comparing Ice nucleation Measuring Systems (ICIS-2007) 1Centre for Atmospheric Science, SEAES, University of Manchester, Manchester, UK
03 Jan 2011
2Department of Atmospheric Science, Colorado State University, Fort Collins, Colorado, USA
3Institute for Meteorology and Climate Research, Karlsruhe Institute of Technology, Germany
Received: 27 Jul 2010 – Published in Atmos. Chem. Phys. Discuss.: 16 Aug 2010 Abstract. An ice nucleus counter was developed and constructed to enable investigation
of potential ice nucleating materials. The Manchester Ice Nucleus Chamber
(MINC) is a concentric-cylinder continuous flow diffusion chamber (CFDC). A
full explanation of the MINC instrument is given here, along with first
results and a comparison to an established instrument of similar design
(Colorado State University CFDC) during sampling of common ice nucleating
aerosols at the 2007 International workshop on Comparing Ice nucleation
Measuring Systems (ICIS-2007). MINC and CSU-CFDC detected the onset of ice
nucleation under similar conditions of temperature and supersaturation for
several different types of ice nuclei. Comparisons of the ratio of ice
nuclei to total aerosol concentrations as a function of supersaturation with
respect to water (SSw) showed agreement within one order of magnitude.
Possible reasons for differences between the two instruments relating to
differences in their design are discussed, along with suggestions to future
improvements to the current design.
Revised: 13 Dec 2010 – Accepted: 14 Dec 2010 – Published: 03 Jan 2011
Citation: Jones, H. M., Flynn, M. J., DeMott, P. J., and Möhler, O.: Manchester Ice Nucleus Counter (MINC) measurements from the 2007 International workshop on Comparing Ice nucleation Measuring Systems (ICIS-2007), Atmos. Chem. Phys., 11, 53-65, doi:10.5194/acp-11-53-2011, 2011.