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  The influence of multiple groups of biological ice nucleating particles on cloud microphysical properties of mixed-phase clouds

Patade, S., Waman, D., Deshmukh, A., Gupta, A. K., Jadav, A., Phillips, V. T. J., Bansemer, A., Carlin, J., Ryzhkov, A. (2023): The influence of multiple groups of biological ice nucleating particles on cloud microphysical properties of mixed-phase clouds, XXVIII General Assembly of the International Union of Geodesy and Geophysics (IUGG) (Berlin 2023).
https://doi.org/10.57757/IUGG23-0309

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Datensatz-Permalink: https://gfzpublic.gfz-potsdam.de/pubman/item/item_5016365 Versions-Permalink: https://gfzpublic.gfz-potsdam.de/pubman/item/item_5016365_2
Genre: Konferenzbeitrag

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Patade, Sachin1, Autor
Waman, Deepak1, Autor
Deshmukh, Akash1, Autor
Gupta, Ashok Kumar1, Autor
Jadav, Arti1, Autor
Phillips, Vaughan T. J.1, Autor
Bansemer, Aaron1, Autor
Carlin, Jacob1, Autor
Ryzhkov, Alexander1, Autor
Affiliations:
1IUGG 2023, General Assemblies, 1 General, International Union of Geodesy and Geophysics (IUGG), External Organizations, ou_5011304              

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 Zusammenfassung: A new empirical formulation for multiple groups of primary biological aerosol particles (PBAPs) is implemented in the aerosol–cloud model (AC). The aim of the study is to to investigate their roles as ice nucleating particles(INPs). The parameterization scheme describes the heterogeneous ice nucleation by various groups including (1) fungal spores, (2) bacteria, (3) pollen, (4) detritus of plants, animals, and viruses, and (5) algae. We carried out a high-resolution simulation of a midlatitude mesoscale squall line by AC and results were validated against airborne and ground observations. Sensitivity experiments are carried out by varying the initial vertical profiles of the mass loadings of individual PBAP groups. The changes in warm and ice cloud microphysical parameters are investigated. Overall, the changes in warm microphysical parameters are minimal (<10 %). Simulations showed that PBAPs have little effect on the ice number concentration (<6 %) in the convective region. For the stratiform part of cloud, increasing the initial PBAP loadings by a factor of 1000 resulted in less than 40% change in ice number concentrations. Various mechanisms of Secondary ice production (SIP) dominates total ice concentration. However, when SIP is swtiched off in sensitivity tests, increasing the PBAP loading by a factor of 100 has an effect of less than 3 % on the ice phase. PBAPs have little effect on surface precipitation and on the shortwave and longwave flux (<4 % ) for a 100-fold perturbation in PBAPs.

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Sprache(n): eng - Englisch
 Datum: 2023
 Publikationsstatus: Final veröffentlicht
 Seiten: -
 Ort, Verlag, Ausgabe: -
 Inhaltsverzeichnis: -
 Art der Begutachtung: -
 Identifikatoren: DOI: 10.57757/IUGG23-0309
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Veranstaltung

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Titel: XXVIII General Assembly of the International Union of Geodesy and Geophysics (IUGG)
Veranstaltungsort: Berlin
Start-/Enddatum: 2023-07-11 - 2023-07-20

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Titel: XXVIII General Assembly of the International Union of Geodesy and Geophysics (IUGG)
Genre der Quelle: Konferenzband
 Urheber:
Affiliations:
Ort, Verlag, Ausgabe: Potsdam : GFZ German Research Centre for Geosciences
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