Through IOC Circular Letter 2981, the Working Group on User Requirements and Contributions to GEBCO Products was re-constituted to undertake the regular GEBCO assessment of user requirements in accordance with Decision EC-XLIX/Dec.4.4 (2016) and Decision A-31/3.5.1 (2021).

The main task of the Working Group is to: (i) collect, integrate and assess user requirements to inform the development of present and future GEBCO products; and (ii) address ways for strengthening the contributions of IOC programmes and Member States activities to GEBCO data and products. A survey was designed to collect information, the results of which are synthesised in this document.

After due consideration by the governing bodies of IHO and IOC, the findings of this report will be shared with the IHO and GEBCO Guiding Committee for their follow up actions.

The proposed decision is referenced as EC-57/Dec.4.4 in the Revised Action Paper for the session (document IOC/EC-57/AP Prov. Rev.).