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Short-term Variation in Measurements of Atmospheric Ice-Nucleating Particle Concentrations

Vogel, Franziska ORCID iD icon 1
1 Institut für Meteorologie und Klimaforschung Atmosphärische Aerosolforschung (IMKAAF), Karlsruher Institut für Technologie (KIT)

Abstract (englisch):

Primary ice formation in clouds is initiated by a minor subset of the total atmospheric aerosol population called ice-nucleating particles (INPs), that originate from various source regions around the globe. Tropospheric clouds containing ice crystals are a key player for facilitating life on Earth by providing fresh water originating from liquid and solid precipitation and by balancing the radiation budget with their optical properties. The number concentration of atmospheric INPs and the related number of ice crystals is highly variable and strongly depends on the aerosol type and properties. Due to changes in the ambient conditions or physical or chemical processes in the atmosphere on a time scale of minutes to a few hours, the INP concentration may vary on a similar time scale. Especially the potential short-term variation is still not well investigated and underrepresented in models, but may be addressed with automated INP measurements with a high time resolution at well controlled conditions. A major subject of the here presented thesis is to quantify the short-term variation of atmospheric INP concentrations and search for possible causes for this variation by correlating the INP measurements with other variables like the aerosol number and surface area concentration and meteorological variables.
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Volltext §
DOI: 10.5445/IR/1000151147
Veröffentlicht am 02.11.2022
Cover der Publikation
Zugehörige Institution(en) am KIT Institut für Meteorologie und Klimaforschung Atmosphärische Aerosolforschung (IMKAAF)
Publikationstyp Hochschulschrift
Publikationsdatum 02.11.2022
Sprache Englisch
Identifikator KITopen-ID: 1000151147
Verlag Karlsruher Institut für Technologie (KIT)
Umfang 152 S.
Art der Arbeit Dissertation
Fakultät Fakultät für Physik (PHYSIK)
Institut Institut für Meteorologie und Klimaforschung Atmosphärische Aerosolforschung (IMKAAF)
Prüfungsdatum 10.06.2022
Referent/Betreuer Leisner, Thomas
Murray, Benjamin J.
KIT – Die Forschungsuniversität in der Helmholtz-Gemeinschaft
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