The Nippon Foundation-GEBCO Seabed 2030 Project and the Global Multi-Resolution Topography (GMRT) Synthesis Project, operated at Columbia University’s Lamont-Doherty Earth Observatory, have paved the way for a future of collaborative working by entering into a letter of intent. The formal agreement establishes a partnership between the two projects, with the shared objective of assembling a global compilation of high-resolution bathymetric