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International Hydrographic Review

The International Hydrographic Review (IHR) is an international journal publishing peer-reviewed papers on all aspects of hydrography and associated subjects, ranging from the latest technical developments to history. It was first published in 1923 and since then has been published regularly; all previous editions of the IHR are available in the IHR Repository. The IHR can be accessed directly using the link https://ihr.iho.int.

Online Chart Catalogues

IHO Member States Online Chart Catalogues (last updated - 24th November  2021)

NCWG Letters

NSHC35 (2022)

35th Meeting  Reykjavik, Iceland (5-6 April 2022)

MACHC Letters

(English & Spanish only)

Miscellaneous

Miscellaneous - Links

Basic Documents

20th Meeting of the Data Quality Working Group (DQWG) Video-teleconference (VTC), 11 – 13 March 2025

20th Conference of the IHO Hydrographic Commission on Antarctica (HCA) Punta Arenas, Chile, 03-06 December 2025 & HPWG, Region M ICCWG and S-100 Workshop (Region M ICC Coordinator) 02 December 2025.