Efficiency of the deposition mode ice nucleation on mineral dust particlesReportar como inadecuado

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1 Forschungszentrum Karlsruhe 2 United Kingdom Met Office Exeter 3 NCAR - National Center for Atmospheric Research Boulder 4 Respiratory Research Group 5 Forschungszentrum J&uuuml

Abstract : The deposition mode ice nucleation efficiency of various dust aerosols was investigated at cirrus cloud temperatures between 196 K and 223 K using the aerosol chamber facility AIDA Aerosol Interaction and Dynamics in the Atmosphere. Arizona test dust ATD as a reference material and two dust samples from the Takla Makan desert in Asia AD1 and Sahara SD2 were used for the experiments at simulated cloud conditions. The dust particle sizes were almost lognormally distributed with mode diameters between 0.3 µm and 0.5 µm and geometric standard deviations between 1.6 and 1.9. Deposition ice nucleation was most efficient on ATD particles with ice-active particle fractions of about 0.6 and 0.8 at an ice saturation ratio Si

Autor: O. Möhler - P. R. Field - P. Connolly - S. Benz - H. Saathoff - M. Schnaiter - R. Wagner - R. Cotton - M. Krämer - A. Mangold -

Fuente: https://hal.archives-ouvertes.fr/


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