On the drivers of ice nucleating particle diurnal variability in Eastern Mediterranean clouds DOI Creative Commons
Kunfeng Gao, Franziska Vogel, Romanos Foskinis

et al.

npj Climate and Atmospheric Science, Journal Year: 2025, Volume and Issue: 8(1)

Published: May 5, 2025

Abstract We report the drivers of spatiotemporal variability ice nucleating particles (INPs) for mixed-phase orographic clouds (~−25 °C) in Eastern Mediterranean. In planetary boundary layer, pronounced INP diurnal periodicity is observed, which mainly driven by biological (and to a lesser extent, dust) but not aerosols from biomass burning. The comparison size-resolved and fluorescence-discriminated aerosol particle properties with INPs reveals primary role fluorescent bioaerosol. presence Saharan dust increases during nighttime more than daytime, because lower layer height decreases contribution (including bioaerosols) layer. absent free troposphere, although levels are availability bioaerosol particles. Given effective nucleation ability bioaerosols subsequent effects multiplication at warm temperatures, lack such cycles models points important overlooked cloud formation precipitation mountainous regions.

Language: Английский

On the drivers of ice nucleating particle diurnal variability in Eastern Mediterranean clouds DOI Creative Commons
Kunfeng Gao, Franziska Vogel, Romanos Foskinis

et al.

npj Climate and Atmospheric Science, Journal Year: 2025, Volume and Issue: 8(1)

Published: May 5, 2025

Abstract We report the drivers of spatiotemporal variability ice nucleating particles (INPs) for mixed-phase orographic clouds (~−25 °C) in Eastern Mediterranean. In planetary boundary layer, pronounced INP diurnal periodicity is observed, which mainly driven by biological (and to a lesser extent, dust) but not aerosols from biomass burning. The comparison size-resolved and fluorescence-discriminated aerosol particle properties with INPs reveals primary role fluorescent bioaerosol. presence Saharan dust increases during nighttime more than daytime, because lower layer height decreases contribution (including bioaerosols) layer. absent free troposphere, although levels are availability bioaerosol particles. Given effective nucleation ability bioaerosols subsequent effects multiplication at warm temperatures, lack such cycles models points important overlooked cloud formation precipitation mountainous regions.

Language: Английский

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