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The IHO Bulletin is normally published periodically in English, French and Spanish. It contains a summary of recent IHO meetings, events and other items of general interest.
Participants to IHO Meetings and Events are invited to use the IHO On-line Registration.
Private entities can participate in increasing our knowledge of the ocean by sharing depth measurements from navigation instruments while out at sea or obtained during surveys. Known as Crowdsourced Bathymetry (CSB), this work can help identify uncharted features such as seamounts, canyons, etc. and help fill the gaps where no marine data exists. Private entities can help discover and name underwater mountain ranges, volcanoes, canyons etc. Photo © IHO
The HDWG is tasked with reviewing and updating the content of the reference version of the IHO Hydrographic Dictionary, currently available in Chinese, English, French, Indonesian, and Spanish, whilst maintaining close liaison with the IHO GI Registry and nationally developed language versions of the Hydrographic Dictionary maintained by individual or groups of Member States.
The TWCWG is tasked with providing technical advice and coordination on matters related to tides, water levels, currents and vertical datum, including integrated water level/current data models. Transfer of Tidal Constituents : An XML Schema has been prepared to facilitate the digital transfer of harmonic tidal constituents. The schema and further information is available from the UKHO web site. Capacity Building : The Working Group has developed a training course on the theory and measurement of tides and water levels in support of hydrography. Course material can be accessed via the link.
Education & Programme Recognition
The IHO places education and training in the frontline of its Capacity Building Programme. The IBSC (The Board) acknowledges that these are challenging times due to the COVID-19 pandemic and encourages all institutions to prioritize the well-being of staff and students as they manage their particular circumstances to deal with disruptions to their normal teaching strategies for their recognized programme(s). The Board recognizes that teaching delivery strategies will likely need to be changed as institutions implement essential changes to comply with official directions from authorities. The Board requests that any modified teaching strategies seek to maintain the appropriate level of the applicable Standard and asks that significant changes be referred to the Board for its consideration of the need for guidance or assistance with continuing recognition. This acknowledgement should not be construed as the Board seeking to override national or local official directions.
In 1988, the U.S. National Geophysical Data Centre (NGDC) offered to host and operate a Worldwide digital oceanic bathymetry data center on behalf of the IHO Member States. This led to the official establishment (in June 1990) of the IHO Data Centre for Digital Bathymetry (DCDB). Data provided by the IHO Member States are available for download from the DCDB web site. It is possible to search, view or download all available data using the DCDB Web Map Server and GEODAS interfaces (please see below).
Inter-Governmental Organizations and Non-Governmental Organizations are recognized as observers to be invited to meetings of the Assembly and all subsidiary organs and subordinate bodies of the IHO in which they have an interest and to which they can make a contribution. The IHO maintains a substantive number of Memoranda of Understanding and Co-operative Agreements with relevant organizations active in the maritime domain.
Finance Documents and Reports
The IHO operates under a 3 year budget approved by the Assembly and an annual operational Budget endorsed by the Council and approved by the Member-States through correspondence. The Finance Committee Officers are used to meet in spring every year to approve the audit report of the Secretariats operations. The Member States are informed via Finance Circular Letters which can be downloaded from the Circular Letters section - under the top menu called "About IHO".