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Verlagsausgabe
DOI: 10.5445/IR/1000067670
Veröffentlicht am 08.03.2018
Originalveröffentlichung
DOI: 10.1088/1748-9326/10/2/024004
Scopus
Zitationen: 10
Web of Science
Zitationen: 7

How thermodynamic environments control stratocumulus microphysics and interactions with aerosols

Andersen, Hendrik; Cermak, Jan

Abstract:
Aerosol–cloud interactions are central to climate system changes and depend on meteorological conditions. This study identifies distinct thermodynamic regimes and proposes a conceptual framework for interpreting aerosol effects. In the analysis, ten years (2003–2012) of daily satellite-derived aerosol and cloud products are combined with reanalysis data to identify factors controlling Southeast Atlantic stratocumulus microphysics. Considering the seasonal influence of aerosol input from biomass burning, thermodynamic environments that feature contrasting microphysical cloud properties and aerosol–cloud relations are classified. While aerosol impact is stronger in unstable environments, it is mostly confined to situations with low aerosol loading (aerosol index AI ≲ 0.15), implying a saturation of aerosol effects. Situations with high aerosol loading are associated with weaker, seasonally contrasting aerosol-droplet size relationships, likely caused by thermodynamically induced processes and aerosol swelling.


Zugehörige Institution(en) am KIT Fakultät für Physik (PHYSIK)
Institut für Meteorologie und Klimaforschung - Atmosphärische Spurenstoffe und Fernerkundung (IMK-ASF)
Institut für Photogrammetrie und Fernerkundung (IPF)
Publikationstyp Zeitschriftenaufsatz
Jahr 2015
Sprache Englisch
Identifikator ISSN: 1748-9318, 1748-9326
URN: urn:nbn:de:swb:90-676703
KITopen ID: 1000067670
Erschienen in Environmental research letters
Band 10
Heft 2
Seiten Art. Nr.: 024004
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