Atmospheric and Surface Processes, and Feedback Mechanisms Determining Arctic Amplification: A Review of First Results and Prospects of the (AC) 3 …

M Wendisch, M Brückner, S Crewell… - Bulletin of the …, 2023 - journals.ametsoc.org
Mechanisms behind the phenomenon of Arctic amplification are widely discussed. To
contribute to this debate, the (AC) 3 project was established in 2016 (www. ac3-tr. de/). It …

Overview: quasi-Lagrangian observations of Arctic air mass transformations – introduction and initial results of the HALO–() aircraft campaign

M Wendisch, S Crewell, A Ehrlich… - Atmospheric …, 2024 - acp.copernicus.org
Global warming is amplified in the Arctic. However, numerical models struggle to represent
key processes that determine Arctic weather and climate. To collect data that help to …

Aerosol, clouds and trace gases research infrastructure (ACTRIS): The European research infrastructure supporting atmospheric science

P Laj, C Lund Myhre, V Riffault… - Bulletin of the …, 2024 - journals.ametsoc.org
Abstract The Aerosol, Clouds and Trace Gases Research Infrastructure (ACTRIS) officially
became the 33rd European Research Infrastructure Consortium (ERIC) on 25 April 2023 …

Contrasting extremely warm and long-lasting cold air anomalies in the North Atlantic sector of the Arctic during the HALO- campaign

A Walbröl, J Michaelis, S Becker, H Dorff… - Atmospheric …, 2024 - acp.copernicus.org
How air masses transform during meridional transport into and out of the Arctic is not well
represented by numerical models. The airborne field campaign HALO-(AC) 3 applied the …

The Ny-Ålesund aerosol cloud experiment (nascent): Overview and first results

JT Pasquier, RO David, G Freitas… - Bulletin of the …, 2022 - journals.ametsoc.org
The Arctic is warming at more than twice the rate of the global average. This warming is
influenced by clouds, which modulate the solar and terrestrial radiative fluxes and, thus …

Contrasting ice formation in Arctic clouds: surface-coupled vs. surface-decoupled clouds

HJ Griesche, K Ohneiser, P Seifert… - Atmospheric …, 2021 - acp.copernicus.org
In the Arctic summer of 2017 (1 June to 16 July) measurements with the OCEANET-
Atmosphere facility were performed during the Polarstern cruise PS106. OCEANET …

Assessing Arctic low-level clouds and precipitation from above–a radar perspective

I Schirmacher, P Kollias, K Lamer… - Atmospheric …, 2023 - amt.copernicus.org
Most Arctic clouds occur below 2 km altitude, as revealed by CloudSat satellite observations.
However, recent studies suggest that the relatively coarse spatial resolution, low sensitivity …

Quantifying riming from airborne data during the HALO-(AC) campaign

N Maherndl, M Moser, J Lucke, M Mech… - Atmospheric …, 2024 - amt.copernicus.org
Riming is a key precipitation formation process in mixed-phase clouds which efficiently
converts cloud liquid to ice water. Here, we present two methods to quantify riming of ice …

Ice aggregation in low‐level mixed‐phase clouds at a high arctic site: Enhanced by dendritic growth and absent close to the melting level

G Chellini, R Gierens, S Kneifel - Journal of Geophysical …, 2022 - Wiley Online Library
Low‐level mixed‐phase clouds (MPCs) occur extensively in the Arctic, and are known to
play a key role for the energy budget. While their characteristic structure is nowadays well …

Cloud micro-and macrophysical properties from ground-based remote sensing during the MOSAiC drift experiment

HJ Griesche, P Seifert, R Engelmann, M Radenz… - Scientific Data, 2024 - nature.com
In the framework of the Multidisciplinary drifting Observatory for the Study of Arctic Climate
Polarstern expedition, the Leibniz Institute for Tropospheric Research, Leipzig, Germany …