S1. Hydrological/Hydraulic Processes and ModellingS2. Urban Water Modelling and ManagementS3. Rivers and Lakes—Water Quality, Nutrient Enrichment, and Pollutant TransportS4. Water Resources Management, Policy, and GovernanceS5. Extreme Hydrometeorological Events: Sources, Mitigation, and AdaptationS6. Ecohydrological Approaches and Ecosystems Conservancy—Water–Food–Energy Ecosystem NexusS7. Remote Sensing, Artificial Intelligence, and New Technologies in Water SciencesS8. Wastewater Treatment and ReuseS9. Agricultural Water SystemsS10. Groundwater Systems Modelling, Analysis, and Vulnerability—Quantity and Quality Issues