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World Hydrography Day 2010

Listen to an interview with the Commander of the NOAA Ship Thomas Jefferson, currently in the Gulf of Mexico on a Deepwater Horizon oil spill study mission.

Making Waves podcast

Learn about hydrography in this audio interview with an expert from NOAA's Office of Coast Survey. The discussion highlights why hydrography is important and how hydrographers use and collect data.

Diving Deeper podcast


Celebrate World Hydrography Day with this short video hosted by NOAA's Deputy Under Secretary for Oceans and Atmosphere, Mary Glackin.

Each year on June 21, the International Hydrographic Organization and its member states recognize World Hydrography Day. This day recognizes the need to increase global awareness of the importance of hydrography to the safety of global marine transportation and the protection of the environment.