A Prototypal Dynamic GNSS Integrity Framework for Coastal Navigation in WebGIS

The improvement of safety in coastal navigation represents a central field research topic, especially in the Mediterranean area. Knowledge of the integrity level in localization is a fundamental aspect for guaranteeing safe navigation and, at the same time, operational efficiency in sea rescues. In this field, advanced GNSS algorithms allowed specialists to solve this aspect using the satellite signals acquired from receivers to provide integrity information. At the same time, WebGIS applications represent now the main solution for the Web fruition of geospatial information, playing a key role for the monitoring of sea navigation. This contribution proposes a conceptual framework of an integrated GNSS - WebGIS system that allows to make real-time localization integrity computation and its visualization during coastal navigation. The system is based on a framework composed of GNSS acquisition, integrity computation, Database storage and WebGIS visualization. The structure is conceived as an instrument for improving the safety of coastal navigation. This theorical framework defines a digital twinning structure ready to be implemented in a practical case of study where real-time GNSS acquisition can be dynamically integrated into a remote WebGIS structure combining IoT (Internet of Things) hardware and open-source software. In the future further modules can be added to enrich the level of information for safe navigation purposes.