Call for Abstract:GM9.4 Sediment–cryosphere Interactions in a changing Arctic: sea ice, landfast ice, and delta futures

[Anirban Mukhopadhyay]

We invite submissions to Session GM9.4 at the European Geosciences Union (EGU) General Assembly 2026. Session Focus: Arctic and Subarctic river deltas are dynamic, rapidly evolving systems. These critical land-sea transition zones are continually reforming their geomorphology and hydrological regime in response to accelerated climate change. Understanding the future of these sensitive environments, which are vital for global climate and local communities-requires a deep understanding of the interactions between frozen water and sediment. Topics of Interest Include (but are not limited to): • The influence of sea ice and landfast ice on coastal erosion, sediment transport, and deposition processes within the delta and nearshore zone. • Impacts of permafrost degradation and coastal thermal abrasion on sediment supply and delta stability. • Changes in river ice dynamics and associated effects on river discharge, flow paths, and sediment routing. • Feedback between changing hydrological regimes (e.g., changes in peak discharge, snowmelt) and deltaic geomorphological evolution. • Studies from the largest Arctic and subarctic deltas (e.g., Lena, Mackenzie, Yukon, Ob, Yenisei) and associated coastal plains. • Future projections and scenarios for deltaic landscapes under continued warming. Join us to discuss the cutting-edge science needed to predict the fate of Arctic deltas! EGU 2026 Abstract Submission Deadline: Thursday, 15 January 2026, 13:00 CET. Submit your abstract to GM9.4 via the EGU website!

 https://meetingorganizer.copernicus.org/EGU26/session/56792