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World Hydrography Day 2015
Hydrography is  the science  of measuring and describing the physical features of oceans, seas, and coastal  areas for safe navigation.
Hydrography is the science of measuring and describing the physical features of oceans, seas, and coastal areas for safe navigation. Download infographic.

Sunday, June 21, is World Hydrography Day. Since 2005, this day has given the international hydrographic community the opportunity to share with the public what hydrography is and how it makes navigation safer. This year’s theme, “Our seas and waterways – yet to fully be charted and explored,” recognizes that much of the world’s seas, oceans, and navigable waters remain unsurveyed.  In fact, there are higher resolution images of the Moon and Mars than for many parts of our ocean and coastal waters. 

You may be surprised to learn how much hydrography matters in our everyday lives. Chances are, the goods you bought at the store today were on a ship yesterday. Over a billion metric tons of cargo move in and out of our nation’s ports annually. How do we keep our nation’s marine transportation system functioning in a safe, efficient, and environmentally sound manner? Hydrography. Simply put, hydrography is the science of measuring and describing the physical features of oceans, seas, and coastal areas for safe navigation. Hydrography underpins all other marine activities, including economic development, security and defense, scientific research, and environmental protection.

World Hydrography Day is an opportunity for NOAA’s Office of Coast Survey to recognize the great work that hydrographers in NOAA, other federal agencies, and private industry do to keep our nation’s waterways safer, its economy stronger, and its communities more resilient.

June 18, 2015

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