Hans Jørgen Henriksen, a hydrologist and senior advisor at the Geological Survey of Denmark and Greenland (GEUS), focuses on sustainable water management, groundwater, and surface water modeling. His expertise spans climate adaptation, disaster risk reduction, ecological flow, machine learning, and Bayesian networks for water resource resilience. With over three decades in hydrology, he has led numerous projects on groundwater resources across various countries. His work also includes advising on climate impacts, digital twins for water management, and regional ecological initiatives, and he has contributed widely to both academic and public outreach in water sustainability.