The TwinCity WebGIS application (https://twincity.oie-lab.net/) is the result of a co-design effort carried out by MINES Paris PSL and the City of Marseille within the framework of the ESA-funded Destination Earth (DestinE) project.
Hosted and operated by the Webservice-Energy Information Spatial Data Infrastructure (SDI), the application provides municipal teams with high-resolution Earth Observation data that support their operational activities in areas such as green space management, urban planning, and energy management.
TwinCity follows FAIR principles and relies on open-source technologies and international standards, including OGC standards. The platform enables users to access and exploit data through two complementary interfaces:
- A WebGIS client that allows users to easily visualize datasets and generate useful statistics and indicators;
- A QGIS project providing direct access to the underlying raw data, which are exposed as web services (OGC WMS) through a GeoServer infrastructure.
This dual-access approach facilitates both straightforward data exploration by non-specialist users and advanced analysis by GIS professionals.






