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IHO Crowdsourced Bathymetry Initiative

The International Hydrographic Organization (IHO) has a long history of encouraging the collection of crowdsourced depth data to help improve humanity’s understanding of the shape and depth of the seafloor. For over a century, maps of the ocean floor were created from depth measurements collected by vessels as they journeyed across the oceans. These “passage soundings” enabled the creation of progressively more detailed seafloor maps and digital data grids. Recently, systematic surveys with specialized ships have contributed to greatly increasing available data. Unfortunately, despite the multitude of data that has been collected, to this day only 25% of the world’s ocean depths have been measured; the rest of the data used to compile seafloor maps are estimated depths.

GI Registry

Introduction S-100 Geospatial Information Registry contains several registers (online databases) that include items of information that are relevant to those communities developing of S-100 based products and services.

Iridium SafetyCast Implementation Status

The International Maritime Organization (IMO), the International Hydrographic Organization (IHO), and the World Meteorological Organization (WMO) announce the establishment of the Iridium SafetyCast Service, as a recognized mobile satellite service in the Global Maritime Distress and Safety System (GMDSS).  Effective 11 December 2020, Iridium declared the Iridium SafetyCast Service operational for broadcasting navigational warnings, meteorological warnings and forecasts, and Search and Rescue (SAR) related information. 

TWCWG - Tidal Data Sets Analysis

Results of Analysis of Data Sets

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.

Body of Knowledge

Hydrography Priorities Working Group

USCHC47 Meeting (2024)

47th US/Canada Hydrographic Commission (USCHC) Meeting St. John’s NL, Canada. / 30-31 May 2024

EO1, EO2, and EO3 Meetings (2020)

LIST OF DOCUMENTS NHC Extra Ordinary Meeting (April 3rd 2020) [Online Meeting - please see below] and NHC64th Meeting (postponed to 2021) - (30 - 31 March 2020, Reykjavik Iceland) Note: NHC64 is being hosted after the NSHC34 (27 - 28 April) at the same venue. T.B.D