-- U-Nets and MultispectralI mages for Detecting the Surface Water of Rivers via SAR Images. -- A Combination of Geomatic Techniques for Modelling the Urban Environment in Virtual Reality. -- Dynamic Real-time Spatio-Temporal Acquisition and Rendering in Adverse Environments. -- Approaches for Addressing Spatial Connectivity of Final Harvests within Forest Harvest Scheduling Algorithms. -- An Open-Source Model for Estimating the Need to Expansion in Local Charging Infrastructures. -- Emergency Management and Response through 3D Maps and Novel Geo-Information Sources.

This book constitutes the refereed post-proceedings of the 9th International Conference on Geographical Information Systems Theory, Applications and Management, GISTAM 2023, held in Prague, Czech Republic during April 25–27, 2023. The 6 full papers included in this book were carefully reviewed and selected from 37 submissions. They focus on challenges in geo-spatial data sensing, observation, representation, processing, visualization, sharing and managing, in all aspects concerning both information communication and technologies (ICT) as well as management information systems and knowledge-based systems.