Observed annually on 21 June, the World Hydrography Day to commemorate the work of hydrographers and importance of hydrography. This important day was approved and implemented by the International Hydrographic Organization (IHO) as an annual celebration. This year, the IHO is also celebrating the 100th anniversary of its formation.
Hydrography is important for economic development, security and defense, scientific research, and environmental protection.
Team Agastya wishes everyone a happy World Hydrography Day .