Microphysical and thermodynamic phase analyses of Arctic low-level clouds measured above the sea ice and the open ocean in spring and summer

Airborne in situ cloud measurements were carried out over the northern Fram Strait between Greenland and Svalbard in spring 2019 and summer 2020. In total, 811 min of low-level cloud observations were performed during 20 research flights above the sea ice and the open Arctic ocean with the Polar 5 r...

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Bibliographic Details
Published in:Atmospheric Chemistry and Physics
Main Authors: Moser, Manuel, Voigt, Christiane, Jurkat-Witschas, Tina, Hahn, Valerian, Mioche, Guillaume, Jourdan, Olivier, Dupuy, Régis, Gourbeyre, Christophe, Schwarzenboeck, Alfons, Lucke, Johannes, Boose, Yvonne, Mech, Mario, Borrmann, Stephan, Ehrlich, André, Herber, Andreas, Lüpkes, Christof, Wendisch, Manfred
Format: Article in Journal/Newspaper
Language:English
Published: Copernicus Publications 2023
Subjects:
Wolkenphysik
Arctic
Arctic Ocean
Greenland
Svalbard
Alfred Wegener Institute
Fram Strait
Sea ice
Online Access:https://elib.dlr.de/196448/
https://elib.dlr.de/196448/1/acp-23-7257-2023.pdf
https://acp.copernicus.org/articles/23/7257/2023/
Description
Summary:Airborne in situ cloud measurements were carried out over the northern Fram Strait between Greenland and Svalbard in spring 2019 and summer 2020. In total, 811 min of low-level cloud observations were performed during 20 research flights above the sea ice and the open Arctic ocean with the Polar 5 research aircraft of the Alfred Wegener Institute. Here, we combine the comprehensive in situ cloud data to investigate the distributions of particle number concentration N, effective diameter Deff, and cloud water content CWC (liquid and ice) of Arctic clouds below 500 m altitude, measured at latitudes between 76 and 83∘ N. We developed a method to quantitatively derive the occurrence probability of their thermodynamic phase from the combination of microphysical cloud probe and Polar Nephelometer data.

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