Physicochemical characterization of free troposphere and marine boundary layer ice-nucleating particles collected by aircraft in the eastern North Atlantic
Daniel A. Knopf,Peiwen Wang,Benny Wong,Jay M. Tomlin,Daniel P. Veghte,Nurun N. Lata,Swarup China,Alexander Laskin,Ryan C. Moffet,Josephine Y. Aller,Matthew A. Marcus,and Jian Wang
Center for Aerosol Science and Engineering, Department of Energy,
Environmental and Chemical Engineering, Washington University in St. Louis,
St. Louis, MO 63130, USA
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Ambient particle populations and associated ice-nucleating particles (INPs)
were examined from particle samples collected on board aircraft in the marine
boundary layer and free troposphere in the eastern North Atlantic during
summer and winter. Chemical imaging shows distinct differences in the
particle populations seasonally and with sampling altitudes, which are
reflected in the INP types. Freezing parameterizations are derived for
implementation in cloud-resolving and climate models.
Ambient particle populations and associated ice-nucleating particles (INPs)
were examined from...