LinkIng and QUantifying the Impacts of climate change on inlanD ICE, snow cover, and permafrost on water resources and society in vulnerable regions (LIQUIDICE)

LinkIng and QUantifying the Impacts of climate change on inlanD ICE, snow cover, and permafrost on water resources and society in vulnerable regions Christian Rodehacke Danish Meteorological Institute Copenhagen, Denmark, 2025-09-16 Consortium Lead Objectives •In-situ Data Gathering: Harmonise datasets for ice, snow, and permafrost •Understanding Cryospheric Interconnections: Study glacier melting, water discharge, and permafrost thaw •Satellite-Derived Climate Record Construction: Integrate satellite albedo data for Greenland and LIQUIDICE supersites •Remote Sensing Technology Development: Advance SWE satellite retrieval and calibration •Glacier and Ice Sheet Mass Balance Reconstructions : Reconstruct and extend mass balance data •Impact of Changing Ice Sheets: Conduct high-resolution ESM simulations with enhanced ice sheet representation. Refine outcomes through SMB downscaling and intercomparison4 •Downscaling for Accurate Simulations: Downscale ESM and CORDEX simulations to high resolution over key regions. Refine regional climate models using ML methods and test hydrological models •Integrated Impact Assessment on Water Resources: Assess the impacts of glacier and snow melting on water resources and vital sectors Supersites Work packages •WP 1. Observations of inland ice, snow, permafrost and catchment discharge •WP 2. EO-based technologies for assessing the evolution of land ice and snow cover •WP 3. Modelling and future projections: Global to Local and Integrated to Processbased •WP 4. Impact of change in water resources from the cryosphere to the society •WP 5. Dissemination, communication and exploitation •WP 6. Project Management, Coordination and International & Cross-disciplinary Exchange Workflow Expected results •R1: Comprehensive, standardised open-access datasets on glacier dynamics, snow accumulation, water discharge, and permafrost. •R2: Better understanding of the effects of precipitation changes on water resources, firn loss impact on water retention, and active layer evolution due to glacier retreat. •R3: Advanced technology for SWE retrieval using L-band SAR and comprehensive snow cover datasets for extended study sites (2025-2027). •R4: Time series data of glacier mass balance and frontal ablation rates. •R5: Improved glacier mass balance data spanning seven decades, in collaboration with ESA GlaMBIE. •R6: High-resolution (~20–40 km) global ESM simulations with enhanced representation of Greenland and Antarctica ice sheets. •R7: New ESM simulations downscaled to a few km resolution over project super sites. •R8: Assessment of future glacio-hydrological changes in selected river basins and their impacts on water resources availability. DMI’s contribution •Global Earth System Model (ESM) simulations with enhanced representation of Greenland and Antarctica ice sheets. •IMBIE SMB for the Greenland ice sheet •Improved surface mass balance (SMB) including debris cover in CISSEMBEL: Integration of the third pol into ESMs B A CISSEMBEL Reese (2018) Chola Glacier, Nepal (K. Miles)