Integrated and Open geohazard monitoring data in Aotearoa New Zealand: developing an interoperable data service for GeoNet’s time series datasets.

The GeoNet programme at GNS Science Te Pū Ao (GNS) is the primary agency responsible for collecting, managing, and delivering geohazard data in Aotearoa New Zealand, enabling the monitoring of volcanoes, earthquakes, landslides, and tsunamis. The programme oversees a multi-parametric sensor network along with a diverse array of instrumentation and methodologies to provide both raw and analysis-ready data to its end users. Since its inception in 2002, an "open by default" policy has been the guiding principle of this research and monitoring data infrastructure. 

To enhance the interoperability, accessibility, and usability of GeoNet's data, and in alignment with FAIR data principles, we developed an in-house interdisciplinary solution (Tilde) for storing and accessing time-series datasets managed by the programme. Operating successfully for two years, Tilde has improved the interoperability, usability, and FAIR-ness of GeoNet data. In this presentation, we will outline how Tilde has achieved these improvements, discuss challenges and unresolved questions within the geophysical community, and explore potential future directions for leveraging this open data platform to address CARE principles and indigenous data governance in Aotearoa New Zealand.