Dear all,
Happy New Year! And a friendly reminder about approaching EGU abstract deadline (15 January 2025, 13:00 CET) and our session:
AS4.4/CR7 Clouds, moisture, and precipitation in the Polar Regions: Sources, processes and impacts
AS4.4/CR7 Clouds, moisture, and precipitation in the Polar Regions: Sources, processes and impacts
Session description:
Clouds play an important role in the Polar climate due to their interaction with radiation and their role in the hydrological cycle linking poleward water vapour transport with precipitation. Cloud and precipitation properties depend on the atmospheric dynamics and moisture sources and transport, as well as on aerosol particles, which can act as cloud condensation and ice nuclei. These processes are complex and are not well represented in the models. While measurements of cloud and precipitation microphysical properties in the Arctic and Southern Ocean/Antarctic regions are challenging, they are highly needed to evaluate and improve cloud processes representation in the models used for polar and global climate and cryosphere projections.
This session aims at bringing together researchers using observational and/or modeling approaches (at various scales) to improve our understanding of polar tropospheric clouds, precipitation, and related mechanisms and impacts. Contributions are invited on various relevant processes including (but not limited to):
- Drivers of cloud/precipitation microphysics at high latitudes,
- Role of aerosols as cloud condensation and ice nuclei,
- Linkages of polar clouds/precipitation to the moisture sources and transport, including extreme transport events (e.g., atmospheric rivers, moisture intrusions),
- Relationship of moisture/cloud/precipitation processes to atmospheric dynamics, ranging from synoptic and meso-scale processes to teleconnections and climate indices,
- Drivers of cloud/precipitation microphysics at high latitudes,
- Role of aerosols as cloud condensation and ice nuclei,
- Linkages of polar clouds/precipitation to the moisture sources and transport, including extreme transport events (e.g., atmospheric rivers, moisture intrusions),
- Relationship of moisture/cloud/precipitation processes to atmospheric dynamics, ranging from synoptic and meso-scale processes to teleconnections and climate indices,
- Interactions between clouds and radiation, including impacts on the surface energy balance,
- Impacts of clouds&precipitation on the polar and global climate system, surface mass and energy balance, sea ice and ecosystems.
We would like to emphasize collaborative observational and modeling activities including dedicated measurement campaigns in the Arctic and Southern Ocean/Antarctica and encourage related contributions. Particular focus this year will be on aerosol-cloud interactions. Our solicited speakers this year are Tom Lachlan-Cope (British Antarctic Survey) who will speak on the Southern Ocean and Antarctic cloud observations and Tina Santl-Temkiv (Aarhus University) - on the role of bioaerosols in polar clouds.
We look forward to seeing you in Vienna & Online!
Kind regards,
Session conveners: Irina Gorodetskaya (CIIMAR), Kerstin Ebell (U Koeln), Florian Sauerland (KU Leuven), Max Maahn (U Leipzig) and Floor van den Heuvel (BAS)
--------------------------------------
Dr Floor van den Heuvel
Cloud Physicist
CloudSense Science Coordinator
Member-at-large UK Polar Network
Atmosphere, Ice and Climate team
British Antarctic Survey High Cross, Madingly Road,
Cambridge CB3 0ET
This email and any attachments are intended solely for the use of the named recipients. If you are not the intended recipient you must not use, disclose, copy or distribute this email or any of its attachments and should notify the sender immediately and delete this email from your system. UK Research and Innovation (UKRI) has taken every reasonable precaution to minimise risk of this email or any attachments containing viruses or malware but the recipient should carry out its own virus and malware checks before opening the attachments. UKRI does not accept any liability for any losses or damages which the recipient may sustain due to presence of any viruses.
