The United Nations, through its Intergovernmental Oceanographic Commission (IOC-UNESCO), has unveiled a worldwide campaign urging member nations to expand cooperation in ocean data exchange and to elevate drifting buoys as a key pillar of ocean observation for the coming decade.
Importance and Operation of Drifting Buoys
Drifting buoys act as mobile "watchers" of the seas, moving with ocean currents while carrying sophisticated instruments that record vital information such as sea surface temperature, salinity, current speed, atmospheric pressure, and carbon dioxide levels. Using satellite networks like Iridium, these devices send real-time data from tropical waters to polar regions. The Global Ocean Observing System (GOOS) reports that the current fleet of roughly 4,000 units delivers hundreds of millions of measurements every year, serving as the backbone for climate modeling, hazard prediction, and marine ecosystem studies.
The UN initiative underscores their role in accessible data sharing. A notable example is the low-cost GNSS buoy created by China's First Institute of Oceanography (FIO), which can monitor ten variables - from wave height to atmospheric moisture - at only a fraction of the cost of conventional systems, making large-scale deployments more achievable.
Background and Goals of the Initiative
This initiative is part of the UN's 2021–2030 Decade of Ocean Science for Sustainable Development, designed to address major gaps in ocean monitoring. Although oceans cover over 70% of the planet, data remains unavailable for roughly 80% of their surface, hindering accurate assessments of climate trends and marine health. The program seeks to create an open-access platform uniting data from drifting buoys, satellites, and autonomous underwater vehicles, following the FAIR standards - findable, accessible, interoperable, and reusable.
On June 13, 2025, during the Third United Nations Ocean Conference in Nice, France, the "10,000 Ships for the Ocean" initiative was officially launched. This ambitious effort intends to equip 10,000 commercial vessels with ocean monitoring capabilities by 2035, complementing buoy networks. Supported by the World Meteorological Organization (WMO), IOC-UNESCO, and the International Maritime Organization (IMO), the project has already received backing from major shipping companies like MSC and Maersk.
Innovation and Global Collaboration
Recent progress in buoy technology has strengthened the foundation for this initiative. Modern models incorporate low-power sensors and AI-based analytics, increasing data handling efficiency by around 30%. For instance, NOAA's Global Drifter Program (GDP) operates 1,250 buoys with a 99% transmission success rate, thanks to improved satellite links. In addition, the integration of blockchain solutions is enhancing data integrity and transparency, helping foster trust in cross-border exchanges.
International partnerships are equally essential. The IOC-UNESCO Ocean Data and Information System (ODIS) now links with the International Seabed Authority's (ISA) DeepData repository, which contains information from over 800 deep-sea sampling sites. Research institutions from China, the US, Japan, and the EU are working under the GOOS framework to standardize data formats. At the Singapore Summit in July 2025, an agreement was reached to expand the global buoy network to 6,000 units by 2030.
Conclusion
Delegates at the conference voiced strong support, pledging to scale up buoy deployments over the next five years and gradually release historical datasets to the public. Representatives from several developing coastal nations noted that broader access to shared ocean data would enable them to enhance their own marine and weather early warning systems, thereby reducing the human and economic toll of natural disasters.