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  Temperature dependence of precipitating ice particle number concentrations of Arctic mixed-phase clouds observed by continuous ground-based measurements

Koike, M., Saito, T., Tobo, Y., Ebell, K., Moteki, N., Ohata, S., Mori, T., Yoshida, A., Adachi, K., Baumgardner, D., Ong, C. R., Hashino, T. (2023): Temperature dependence of precipitating ice particle number concentrations of Arctic mixed-phase clouds observed by continuous ground-based measurements, XXVIII General Assembly of the International Union of Geodesy and Geophysics (IUGG) (Berlin 2023).
https://doi.org/10.57757/IUGG23-2147

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Datensatz-Permalink: https://gfzpublic.gfz-potsdam.de/pubman/item/item_5018673 Versions-Permalink: https://gfzpublic.gfz-potsdam.de/pubman/item/item_5018673_2
Genre: Konferenzbeitrag

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Koike, Makoto1, Autor
Saito, Temma1, Autor
Tobo, Yutaka1, Autor
Ebell, Kerstin1, Autor
Moteki, Nobuhiro1, Autor
Ohata, Sho1, Autor
Mori, Tatsuhiro1, Autor
Yoshida, Atsushi1, Autor
Adachi, Kouji1, Autor
Baumgardner, Darrel1, Autor
Ong, Chia Rui1, Autor
Hashino, Tempei1, Autor
Affiliations:
1IUGG 2023, General Assemblies, 1 General, International Union of Geodesy and Geophysics (IUGG), External Organizations, ou_5011304              

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 Zusammenfassung: Arctic low level clouds are considered to play a significant role in the Arctic climate system. In this study, we examined a temperature dependence of precipitating ice particle number concentrations of Arctic mixed-phase clouds observed by continuous ground-based in situ measurements. Precipitating particles were measured using an optical disdrometer (MPS, DMT Inc.) at Mt. Zeppelin Observatory in Ny-Alesund (78.9N, 11.9E), Svalbard between years of 2016 and 2020. Based on ground-based cloud radar and lidar observations, we selected a single layer mixed-phase cloud whose cloud-top height was less than 2.5 km. For the ice nucleating particles number concentration (NINP), we adopted typical number concentrations observed at Mt. Zeppelin. Because NINP depends on temperature, we used the value corresponding to the cloud-top temperature. As a result, number concentration fluxes of precipitation particles (Fice) tended to increase with decreasing temperature below approximately -15°C and they agreed with FINP within one order of magnitude. On the other hand, at temperatures above -10°C, Fice was several orders of magnitude higher than FINP. In this paper, we discuss possible reasons for these temperature dependences of Fice.

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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/IUGG23-2147
 Art des Abschluß: -

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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