Ortelium at a glance The Ortelium web platform manages dynamic atlases of different Atlas operators. These atlases collect and visualize a variety of data that has a location and time reference and evaluate it in real time. Operators are e.g. authorities, public bodies or companies carrying out digitized environmental monitoring. The data may include technical data from measuring instruments or other data sources. In specific atlases, you can enter your own observations via the Ortelium app or