The annual SURFEIT project meeting was another project success, bringing together 41 participants, with 22 attending in person and 19 joining online. The event kicked off on Monday, July 1st, with a warm welcome from the PI, Louise Sime, followed by updates from each of the work package leads, setting the tone for the discussions that followed. Attendees then delved into critical research on sea ice aerosol impacts, polar climate modeling, and cloud-aerosol interactions, fostering good discussion on the evaluation of model precipitation and surface fluxes.

On Tuesday, July 2nd, the focus shifted to WP3, WP4, and WP5, with insightful talks on Antarctic sea ice, atmospheric circulation changes, and downscaling. The presentations highlighted cutting-edge research on ice shelf rift growth and glacier modeling, culminating in dynamic discussions on integrating observations and modeling for ice fracture and calving. The meeting helped with collaborative efforts and helped underpin our shared commitment to advancing the understanding of Antarctic processes. The gathering not only showcased some ground-breaking research but also reinforced the importance of international collaboration in tackling climate challenges. The lunches and dinner together in the Icebreaker and at the Tiffin Truck further strengthened these bonds making this a rewarding meeting for all.

Monday 1st July

Welcome and WP Updates
11:00 – 11:05	Louise Sime	Welcome
11:05 – 11:15	Markus Frey	WP1 Update
11:15 – 11:25	Xin Yang	WP2 Update
11:25 – 11:35	Gareth Marshall	WP3 Update
11:35 – 11:45	Rosie Williams	WP4 Update
11:45 – 11:55	Rob Arthern	WP5 Update
11:55 – 12:05	Athena Dinar	WP6 Update
12:05 – 12:45	Lunch
WP1 and WP2 Talks
12:45 – 13:00	Markus Frey	Sea ice sources of aerosol – potential impacts on clouds
13:00 – 13:15	Ruth Price	The PolarRES project: modelling polar climate change and its impacts across time and space
13:15 – 13:30	Martin Radenz	Recent insights on clouds and aerosol at Neumayer Station III from ground-based remote-sensing in 2023
13:30 – 13:45		WP1 and WP2 Linkages discussion Questions: What is the most effective strategy to validate in UKESM new parameterisations  of surface fluxes of momentum and aerosol (sea salt, CCN, INP)?
13:45 – 14:00	Coffee
14:00 – 14:15	Xin Yang	Modelling the climate impact from sea-ice sourced sea salt aerosol
14:15 – 14:30	Jeff Ridley	Turbulent fluxes at various model resolutions of HadGEM3-GC5
14:30 – 14:45	Alison McLaren	Water tracers in the UK Earth System Model
14:45 – 15:00		WP2 and WP3 Linkages discussion Questions: How can we most effectively validate model precipitation over Antarctica using reanalysis data and observations?
18:30	Optional dinner in town (self funded)

Tuesday 2nd July

WP3 Talks
11:00 – 11:15	Ryan Fogt	A comparison of South Pacific Antarctic sea ice and atmospheric circulation reconstructions since 1905
11:15 – 11:30	Patrick Martineau	Projected Amplification of Moisture Fluxes towards Antarctica by Synoptic Eddies
11:30 – 11:45	Tom Bracegirdle	The ExtAnt project
11:45 – 12:00		WP3 and WP4 Linkages discussion  Questions: What are the key aspects of the CMIP6 input required for the downscaling?  Should we downscale with a single ‘best’ model or a range of possible projections? How do we choose which CMIP models to select?
12:00 – 12:45	Lunch
WP4 and WP5 Talks
12:45 – 13:00	Martin Rogers	Neural processes for environmental downscaling and forecasting
13:00 – 13:15	Oliver Marsh	Ocean tides trigger ice shelf rift growth and calving
13:15 – 13:30	Ravindra Duddu	Damage and phase field modelling of glacier and ice shelf flow and fracture
13:30 – 13:45		WP4 and WP5 Linkages discussion Questions: What is the crucial information that climate models need to provide to fracture models? How best can we integrate observations and modelling of ice fracture and calving?
13:45 – 14:00	Louise Sime	Concluding remarks