Topics

• Session 1.1 Isotopic studies from precipitation to groundwater
• Session 1.2 Hydrodynamics and modelling of strongly heterogeneous (Karst and fractured) systems
• Session 1.3 Processes, tools and advancements in coastal hydrogeology
• Session 1.4 Evolving from Tóth’s gravitational systems of groundwater flow to integrated basin-scale fluid systems for addressing 21st-century challenges
• Session 1.5 Complexity of karst aquifers – challenges in understanding and management
• Session 1.6 Developments in mineral and thermal waters: from exploration to sustainable use
• Session 1.7 Hydrogeochemical and isotopic fingerprinting of groundwater systems: from water–rock interaction to human impacts
• Session 1.8 Environmental tracers to investigate the anthropogenic impacts on groundwater

• Session 2.1 Groundwater dependent geothermal systems

• Session 3.1 Groundwater at the heart of the 2026 UN water conference: IAH positions and UN perspectives
• Session 3.2 Transforming spontaneous conjunctive management to an ordered system – turning ‘lost opportunities’ around
• Session 3.3 Monitoring and modelling groundwater dependent ecosystems: recent advances and traditional knowledge
• Session 3.4 Examining connections between groundwater related laws, state of groundwater crisis and recommendation of approaches for groundwater secure environments
• Session 3.5 Nature-based solutions for sustainable groundwater management
• Session 3.6 Approaches for climate-resilient and sustainable water planning

• Session 4.1 Big data and machine learning applications in hydrogeology
• Session 4.2 From data to action: the contribution of groundwater monitoring as a driver of change
• Session 4.3 Advances in modeling groundwater dynamics from regional to global scales
• Session 4.4 21st century groundwater quality challenges
• Session 4.5 Groundwater temperatures in a warming climate: risks, opportunities, and pathways for sustainable thermal management
• Session 4.6 Data-driven and hybrid methods for groundwater vulnerability assessment
• Session 4.7 GEWEX global groundwater network
• Session 4.8 Groundwater model optimsation and uncertainty

• Session 5.1 Groundwater and climate change: predictive studies and forecasting methods
• Session 5.2 Managed aquifer recharge: essential for groundwater security?
• Session 5.3 Progressive advances in urban hydrogeological processes
• Session 5.4 Managed aquifer recharge for climate change adaptation
• Session 5.5 Groundwater after fire: evidence, communities and scientific outreach

• Session 6.1 Groundwater for water security and resilience in low- and middle-income countries (LMICs)
• Session 6.2 Advancing socio-hydrogeology: bridging groundwater science, social systems, and decision-making
• Session 6.3 The Groundwater Debate: Open issues in hydrogeology
• Session 6.4 Hydrogeology education – good practices and new openings
• Session 6.5 Role of hydrogeologists in Geological Surveys — their work, impact, and benefits to society

Note: The session programme is expected to expand further. The titles listed here reflect the sessions currently accepted by the Local Scientific Committee.

Key dates: