IHO Celebrates World Hydrography Day 2020
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IHO Celebrates World Hydrography Day 2020

The focus of this year’s World Hydrography Day is the key role that hydrography can play in supporting autonomous technologies. This includes aerial, surface and underwater survey drones as well as autonomous ships. World Hydrography Day is an opportunity for the IHO and its 93 Member States to reaffirm their commitment to raising awareness of the importance of hydrography, and to continue to coordinate their activities.

Autonomous technologies are nothing new: mariners have been using systems such as autopilots for decades. More recently, unmanned vessels such as wave gliders have helped make advances in ocean sciences. We are however witnessing increasing levels of autonomy and more widespread applications. Countries such as Norway are carrying out successful trials with autonomous ferries. Autonomous survey vessels are also providing novel and unexpected information about the seabed. However, the further development of safe, secure and environmentally-sound Maritime Autonomous Surface Ships (MASS) operations will require certified up-to-date hydrographic information.

This information could itself be provided by autonomous surface vehicles (ASV) or autonomous underwater vehicles (AUV). Flying drones are now also able to carry lightweight Multibeam Lidar sensors to deliver high accuracy, high-resolution bathymetry data for nearshore and coastal environments. This would help increase the coverage of undersurveyed areas, while at the same time provide a testing ground for these technologies.

The World Hydrography Day theme for 2020 is intended to provide a broad range of opportunities to publicize the hydrographic work and services provided by national hydrographic offices, industry stakeholders, expert contributors and the scientific community.

The Work and Contribution of Hydrographers

Those involved in hydrography may wish to use World Hydrography Day as an opportunity to highlight the significance and importance of their activities. This could include initiatives that support the safety of navigation, the protection of the marine environment, coastal zone management, marine spatial data infrastructures, defence and security, resource exploration, and other components of the blue economy. Highlighting the important work of hydrographers should contribute to increasing public and political awareness of the importance of the seas and waterways to our lives. Key figures on the benefits gained from accurate and updated hydrographic data should be provided in relation, for example, to sustainable shipping or efficient marine spatial planning. 

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