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Abstract

The almost 20-year-old ICGEM is one of the five services coordinated by the International Gravity Field Service (IGFS) of the International Association of Geodesy (IAG). Hosted by the GFZ Potsdam, it provides the scientific community with a comprehensive archive of static, temporal, and topographic global gravity field models (GGMs) of the Earth. Furthermore, ICGEM offers an interactive calculation and visualization service of gravity field functionals and tutorials on the theory. The current service cannot address the advancements in the field of gravity modelling and the wide range of applications of such models and their deliverables in Earth sciences. There is an immediate need to expand, modernise, and upgrade the existing database, research data and metadata included in all facets of the service. In this presentation, we will introduce an upcoming project that will improve, actualize and expand ICGEM with providing additional data and a sustainable infrastructure that follows the FAIR Principles (Findable, Accessible, Interoperable and Reusable). New gravity field related data of transdisciplinary importance (e.g., altimetry grids, DEMs) as well as new calculated gravity field functionals (e.g., isostatic gravity anomalies) and readily computed gravity functional grids will be added. The evaluation tools will be improved and data and metadata standards will be established. The new portal will be interlinked to other national and international research data initiatives (e.g., GGOS, NFDI4Earth). Finally, an improved public outreach strategy shall be developed. The realization of this project shall be done in close contact and communication with the international Earth Gravity Field community.