PHYSICO-CHEMICAL CHARACTERISATION OF ICE PARTICLE RESIDUALS IN TROPOSPHERIC MIXED-PHASE CLOUDS BASED ON ICE PARTICLE COLLECTION USING THE COUNTERFLOW VIRTUAL IMPACTOR TECHNIQUE

1 Leibniz-Institute for Tropospheric Research, Leipzig, Germany 2 Paul Scherrer Institute, Villigen, Switzerland 3 University of Mainz, Germany 4 Max Planck Institute Mainz, Germany 5 University of Darmstadt, Germany 6 University of Frankfurt, Germany 7 ETH Zürich, Switzerland 8 present affiliation: ECN Petten, The Netherlands 9 present affiliation: PNNL, Richland, USA 10 present affiliation: NOAA, Boulder, USA