Saharan dust and ice nuclei over Central Europe
- ISSN: 16807316
- DOI: 10.5194/acp-10-10211-2010
Surface measurements of aerosol and ice nuclei (IN) at a Central European mountain site during an episode of dust transport from the Sahara are presented. Ice nuclei were sampled by electrostatic precipitation on silicon wafers and were analyzed in an isothermal static vapor diffusion cham- ber. The transport of mineral dust is simulated by the Eu- lerian regional dust model DREAM. Ice nuclei and mineral dust are significantly correlated, in particular IN number con- centration and aerosol surface area. The ice nucleating char- acteristics of the aerosol as analyzed with respect to temper- ature and supersaturation are similar during the dust episode than during the course of the year. This suggests that dust may be a main constituent of ice nucleating aerosols in Cen- tral Europe.