National Ocean Service
National Oceanic and Atmospheric Administration
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Sea Floor Mapping
Prince William's Oily Mess
The Lionfish Invasion
Planet Stewards Program
Sea Level Rise
The Earth Scientist
Oysters In the Chesapeake Bay
Living in Weather
Ocean & Climate
Tides & Currents
Discover Your World
Discover Your Changing World
• Do we still need lighthouses?
• What is a canal?
• What is the Bloop?
• What is a hydrophone?
• What is a current survey?
• What is a backscatter?
• What are the Totten Beacons?
• Where do I get real-time and forecast coastal conditions?
• What is the highest point on Earth as measured from Earth's center?
• What is GPS?
• What is marine biogeography?
• What is the Forchhammer's Principle?
• What is seaspeak?
• What is a NOAA tide table?
• What is an ocean glider?
• How does NOAA monitor water levels around the nation?
• What is a geographic information system?
• What is aquaculture?
• What is an Operational Forecast System?
• What is PORTS®?
• What is an artificial reef?
• What is dredging?
• Why do mariners use port and starboard instead of left and right?
• What is a fish ladder?
• What is LIDAR?
• What is the mariner's 1-2-3 rule?
• What is the difference between an AUV and a ROV?
• How do we forecast harmful algal blooms?
• Where do I get NOAA tides and currents data?
• What is Digital Coast?
• How do I get NOAA nautical charts?
• What is a historical map or chart?
• What is the Storm QuickLook?
• How can you tell the difference between an oil slick and an algal bloom?
• What is lightering?
• What is air gap?
• What is VDatum?
• What is Natural Resource Damage Assessment?
• How do we monitor tides?
• What is marine forensic science?
• How is bathymetric data used?
• What is bathymetry?
• How is ocean observing data used?
• How do we measure currents?
• Did I find a lost underwater civilization?
• What is remote sensing?
• Who first charted the Gulf Stream?
• What is IOOS?
• How long does it take to produce a nautical chart?
• What do the numbers mean on a nautical chart?
• What is a nautical chart?
• What's the difference between a nautical chart and a map?
• What is a sonar?
• What is hydrography?
• What role does the Ocean Service play with our nation's aircraft and airports?
• What is a benthic habitat map?