NOAA observes World Hydrography Day by honoring lost crew members of the Robert J. Walker

Today, June 21, is World Hydrography Day. Hydrographic offices in over 80 maritime nations observe this day every year, since 2005. It is our special day to tell the public what hydrography is, and how it is employed to make navigation safer. Simply, hydrography is the science we use to obtain the data needed to create nautical charts. NOAA’s 200-year history is proof positive that those charts – and therefore hydrography – are a national investment that pays off daily with navigation safety, efficiency, and coastal protection from accidents at sea.
But today’s observation of World Hydrography Day is more profound. It is personal to every person who works in or supports hydrography in the United States.
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