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IENWG12 (2021)

12th  Meeting of the IHO-EU Network WG – 12ème réunion du GT du réseau OHI-UE 8 -  9 December 2021, Hybrid (VTC and/or Brest, France) Last Update: 1 March 2022 Join the meeting: https://webinaire.numerique.gouv.fr//meeting/signin/2928/creator/2028/hash/8fe0a00231146bde43c137b74ed9e7f6fbdd6c6d

Baltic Sea HC

Importance of Hydrography

Definition of Hydrography Hydrography is the branch of applied sciences which deals with the measurement and description of the physical features of oceans, seas, coastal areas, lakes and rivers, as well as with the prediction of their change over time, for the primary purpose of safety of navigation and in support of all other marine activities, including economic development, security and defence, scientific research, and environmental protection. In addition to supporting safe and efficient navigation of ships, hydrography underpins almost every other activity associated with the sea, including: - resource exploitation - fishing, minerals,.. - environmental protection and management - maritime boundary delimitation - national marine spatial data infrastructures - recreational boating - maritime defence and security - tsunami flood and inundation modelling - coastal zone management - tourism - marine science

World Hydrography Day

Celebrated on 21 June, World Hydrography Day is designed to raise awareness about hydrography and how it plays a role in improved knowledge of the seas and oceans.

MEETINGS AFTER 2024

List of the Meso American & Caribbean Sea Hydrographic Commission Meetings Note: To access the meeting page, you'll need an IHO Portal account. If you don't have one yet, don't worry! Creating an account is easy. Simply follow the instruction provided at the link here to set up your account and gain access to the meeting page. Click the IHO Portal to get started

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.

What is progress with crowd-sourced depth data around the world?

The Crowdsourced Bathymetry Working Group met last week to discuss progress on an IHO-led citizen science initiative to collect seafloor depth data. Discussions focused on updating guidance and learning about progress from some of the first trial projects around the world.

Women who belong in the official history of the Sea

The BGR provides high resolution data for the Pacific and Indian Oceans

The German Federal Institute for Geosciences and Natural Resources (BGR) is participating in the IHO-led efforts to increase knowledge of the ocean and has shared high resolution depth data for the German contract areas for deep-sea exploration granted by the International Seabed Authority (ISA) in the Pacific and Indian Oceans.  The BGR provided gridded data for 85.000 km² at a resolution of 120 x 120 meters.