International Hydrographic Organisation (IHO) World Hydrographic Day


“Hydrography - contributing to the United Nations Ocean Decade”

21 June 2022


The theme is designed to highlight the relevant contribution of hydrography as a discipline of applied sciences to the United Nations Decade of Ocean Science for Sustainable Development (2021– 2030). The deliberations at the 5th Council meeting confirmed that several hydrographic offices have already engaged nationally to support the United Nations Ocean Decade and efforts to reverse the cycle of decline in ocean health. The theme offers the opportunity to emphasize the ability of hydrographers to gather and manage marine data and their strengths in technical collaboration on a global scale. It also underlines the strategic evolution of national, inter-regional and global activities to support an expanding group of stakeholders with hydrographic information and services.


In November 2005, the United Nations adopted Resolution A/60/30, which includes the statement:

“…Welcomes the adoption by the International Hydrographic Organization of the World Hydrography Day, to be celebrated annually on 21 June, with the aim of giving suitable publicity to its work at all level and of increasing the coverage of hydrographic information on a global basis, and urges all States to work with that organization to promote safe navigation, especially in the areas of international navigation, ports and where there are vulnerable or protected marine areas.”

The World Hydrographic Day (WHD) theme, as in previous years, is intended to provide a broad range of opportunities to publicize the hydrographic work and services provided by national hydrographic offices, industry stakeholders and expert contributors, as well as the scientific community. The relevant topics include, but are not limited to:

  •  All commercial shipping is now going fully digital.

  •  To complete our image of the earth and make best use of it.

  •  The Work and Contribution of Hydrographers.

In support of WHD 2022, the IHO Secretariat will feed the IHO Facebook page, Twitter account, LinkedIn account and YouTube channel. In addition, the IHO Secretariat will organize a dedicated page on the IHO website, where papers and other material relevant to the celebration will be posted. Member States and Stakeholders are invited to forward to the Secretariat any material that they may create in support of their national WHD 2022 celebrations for posting on any of these platforms.

The Focus of the IHO Secretariat’s media outreach activities for 2022 will include collaboration with IOC as the custodian of the UN Ocean Decade. This will include communication on the continued relevance of GEBCO including the diversity of actions of the GEBCO Subcommittees such as the Sub-Committee of Underwater Feature Names (SCUFN), Sub-Committee on Regional Undersea Mapping (SCRUM), Technical Sub-Committee on Ocean Mapping (TSCOM), and Sub-Committee on Communications, Outreach and Public Engagement (SCOPE).

Additional information can be found on the IHO website.