Hoffmann, Fabian; Glassmeier, Franziska; Feingold, Graham (2024): The impact of aerosol on cloud water: a heuristic perspective. Atmospheric Chemistry and Physics, 24 (23). pp. 13403-13412. ISSN 1680-7324
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Abstract
Aerosol–cloud interactions modulate the role of clouds in Earth's climate. We derive, evaluate, and apply a simple model to understand aerosol-mediated cloud water adjustments in stratocumulus based on only two prognostic equations for the integrated cloud water L and droplet number concentration N. The model is solved numerically and analytically and agrees well with documented large-eddy-simulation data and satellite retrievals. A tight relationship between adjustments at low and high N is found, revealing the influence of non-precipitation processes (primarily entrainment) on adjustments in precipitating clouds. Furthermore, it is shown that adjustments in non-precipitating clouds tend to be positively biased by external L or N perturbations, while adjustments in precipitating clouds are barely susceptible. By deliberately reducing the complexity of the underlying system, this study constitutes a way forward to facilitate process-level understanding of cloud water adjustments.
Doc-Type: | Article (LMU) |
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Organisational unit (Faculties): | 17 Physics |
DFG subject classification of scientific disciplines: | Natural sciences |
Date Deposited: | 20. Jan 2025 15:17 |
Last Modified: | 20. Jan 2025 15:17 |
URI: | https://oa-fund.ub.uni-muenchen.de/id/eprint/1607 |
DFG: | Funded by the Deutsche Forschungsgemeinschaft (DFG, German Research Foundation) - 435878013 |
DFG: | Funded by the Deutsche Forschungsgemeinschaft (DFG, German Research Foundation) - 491502892 |