The World Hydrography Day (WHD) was celebrated by the Indian Naval Hydrographic Department on 21 June. The date chosen for World Hydrography Day is the anniversary of the founding of the International Hydrographic Organization, an intergovernmental organisation representing hydrography.

WHD is celebrated worldwide on 21 June every year to to create awareness on the importance of hydrography.  The celebration of World Hydrographic Day reinforces the importance of hydrography as a key component of marine governance and highlights India’s dedication to upholding the highest standards of navigational safety and Marine conservation.

National Hydrographic Office (NHO) in Dehradun celebrated WHD with series of activities. World Hydrography Day (WHD) was observed with enthusiasm and with an aim to raise awareness about the critical role of hydrography in ensuring safe navigation, promoting sustainable marine development, supporting government of India’s Blue water economy including protecting our oceans and coastal areas.

Every year a specific theme related to contribution of hydrography in world maritime affairs is orchestrated by International Hydrographic Organisation (IHO). 

The theme for this year’s World Hydrography Day is: “Hydrography – Underpinning the Digital; Twin of the Ocean”. 

Digital twin is a high resolution, near real time virtual representation of the ocean which will help in informed decision making by policy makers/ scientists based on trustable predictions of the ocean's future behaviour.

Key Takeaways

• World Hydrography Day (WHD) was celebrated by the Indian Naval Hydrographic Department on 21 June
• WHD is celebrated worldwide on 21 June every year to to create awareness on the importance of hydrography.
• The theme for this year’s World Hydrography Day is: “Hydrography – Underpinning the Digital; Twin of the Ocean”. 

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