Advancements in Monitoring Data Management, Modelling and Visualisation: EURAD MODATS - Deliverable 17.6

The Monitoring Equipment and Data Treatment for Safe Repository Operation and Staged Closure (MODATS) work package (WP) of the European Joint Programme on Radioactive Waste Management (EURAD) is conducting research, development and demonstration (RD&D) into: monitoring data acquisition, treatment and management; use of monitoring data to enhance system understanding, including development of digital twins; interactions with civil society and other stakeholders; development of monitoring technologies; and development of knowledge regarding repository monitoring. The focus of MODATS is monitoring during the operational phase of repository programmes to build further confidence in the long-term safety case. In particular, MODATS is focusing on confidence in monitoring data. There are particular challenges associated with monitoring data acquired during repository operations, including challenges associated with its management (including processing and storage), modelling and visualisation. These are most frequently associated with the long timescales envisaged for monitoring programmes and the need to maintain the passive safety of the disposal system. Therefore, MODATS has undertaken research to develop methods through which monitoring data can be processed, stored, modelled and visualised. This has included preliminary work on the development of digital twins.