TY - T1 - Observation of viscosity transition in alpha-pinene secondary organic aerosol SN - / UR - http://hdl.handle.net/10138/162500 T3 - A1 - Järvinen, Emma; Ignatius, Karoliina; Nichman, Leonid; Kristensen, Thomas B.; Fuchs, Claudia; Hoyle, Christopher R.; Hoeppel, Niko; Corbin, Joel C.; Craven, Jill; Duplissy, Jonathan; Ehrhart, Sebastian; El Haddad, Imad; Frege, Carla; Gordon, Hamish; Jokinen, Tuija; Kallinger, Peter; Kirkby, Jasper; Kiselev, Alexei; Naumann, Karl-Heinz; Petäjä, Tuukka; Pinterich, Tamara; Prevot, Andre S. H.; Saathoff, Harald; Schiebel, Thea; Sengupta, Kamalika; Simon, Mario; Slowik, Jay G.; Troestl, Jasmin; Virtanen, Annele; Vochezer, Paul; Vogt, Steffen; Wagner, Andrea C.; Wagner, Robert; Williamson, Christina; Winkler, Paul M.; Yan, Chao; Baltensperger, Urs; Donahue, Neil M.; Flagan, Rick C.; Gallagher, Martin; Hansel, Armin; Kulmala, Markku; Stratmann, Frank; Worsnop, Douglas R.; Moehler, Ottmar; Leisner, Thomas; Schnaiter, Martin A2 - PB - Y1 - 2016 LA - eng AB - Under certain conditions, secondary organic aerosol (SOA) particles can exist in the atmosphere in an amorphous solid or semi-solid state. To determine their relevance to processes such as ice nucleation or chemistry occurring within particles requires knowledge of the temperature and relative humidity (RH) range for SOA to exist in these states. In the Cosmics Leaving Outdoor Droplets (CLOUD) experiment at The European Organisation for Nuclear Research (CERN), we deployed a new in situ optical ... VO - IS - SP - OP - KW - LINEAR DEPOLARIZATION RATIO; ICE NUCLEATION; CLOUD CHAMBER; NONSPHERICAL PARTICLES; ATMOSPHERIC AEROSOLS; OXIDATION-PRODUCTS; RELATIVE-HUMIDITY; MASS-SPECTROMETRY; GLASSY AEROSOLS; SOA PARTICLES; 114 Physical sciences N1 - PP - ER -