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S-100 based Product Specifications
Introduction An S-100 based Product Specification defines a data product, and usually includes additional resources such as a machine readable Feature Catalogue and Portrayal Catalogue, a data Encoding Guide and at least one data encoding format. A guidance document S-97 for developing Product Specifications can be downloaded from the GI registry. A list of known IHO S-100 based product specifications is provided below;
Projects
IHO-Singapore Lab Projects Updated : 3 April 2025
Project Teams
Project teams on standards for Hydrographic Surveys (HSPT)
IHO 100 Years
The International Hydrographic Organization (IHO) turned 100 on 21 June 2021, with an on-site celebration in Monaco which was broadcast live online.
TWCWG6 (2022)
6th Tides, Water Level and Currents Working Group (TWCWG6) VTC 5 - 7 April 2022
WWNWS13 (2021)
13th Meeting of World Wide Navigational Warning Service Sub-Committee (WWNWS13) IHO, Monaco, 30 August - 3 September 2021
HSWG Letters
HSWG Letters will be available here for consultation
Guidelines for the Standardisation of Undersea Feature Names Available in Portuguese
The IHO has released an English /Portuguese version of the guidelines for the Standardisation of Undersea Feature Names (IHO publication B-6). These guidelines explain the process to submit proposals for undersea features names and provide necessary information for them to be adopted by the GEBCO Sub-Committee on Undersea Feature Names (SCUFN). This English /Portuguese version is the result of a productive cooperation and input from Brazil (DHN) and Portugal (IHPT).

HSH Prince Albert II opening remarks to the Assembly
HSH Prince Albert II of Monaco officially opened the IHO Assembly which is taking place 16 to 18 November by videoconference.
