Název:
Three Years of Experience with Measurement of Cloud Condensation Nuclei Concentrations Using Cloud Condensation Nuclei Counter CCN-200
Autoři:
Moravec, Pavel ; Lhotka, Radek ; Ždímal, Vladimír Typ dokumentu: Příspěvky z konference Konference/Akce: výroční konference České aerosolové společnosti /21./, Kutná hora (CZ), 20221003
Rok:
2022
Jazyk:
eng
Abstrakt: Aerosol particles in the atmosphere that allow water vapor to condense and form cloud droplets are called Cloud Condensation Nuclei (CCN). Elevated concentrations of \nCCN tend to increase the concentration and decrease the size of droplets. This can lead to suppression of precipitation in shallow and short-lived clouds and to greater convective \noverturning and more precipitation in deep convective clouds. The response of cloud properties and precipitation processes to increasing anthropogenic aerosol concentrations represents one of the largest uncertainties in the current understanding of climate change. One of the fundamental challenges is to determine the ability of aerosol particles to act as CCN under relevant atmospheric conditions. Knowledge of the spatial and temporal distribution in the atmosphere is essential to incorporate the effects of CCN into meteorological models of all scales, Huang et al. (2007). Long-term CCN measurements are performed at aerosol monitoring sites such as those forming ACTRIS (Aerosols, Clouds and Trace Gases Research Infrastructure) network. In this paper, we present the three-year experience of measuring CCN concentrations over the National Atmospheric Observatory Košetice (NAOK), a rural background site in the Czech Republic. The first results of these measurements were presented by Mishra et al. (2022)
Klíčová slova:
atmospheric aerosols; CCN; CCN concentration measurement Číslo projektu: EF16_013/0001315, LM2015037 (CEP) Poskytovatel projektu: GA MŠk, GA MŠk Zdrojový dokument: Sborník 21. výroční konference České aerosolové společnosti, ISBN 978-80-908653-0-3
Práva: Dílo je chráněno podle autorského zákona č. 121/2000 Sb.