Movies and Podcasts
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In this movie, a survey ship with a multibeam sonar measures the depth of the sea floor. These depth measurements are then used to create rainbow-colored maps. In general, red is used to show shallow depths and blue or purple for deeper depths. Can you see the shallowest point the ship surveyed?
Movie Credit: National Oceanic and Atmospheric Administration.
Click here if you want to see the movie in Quicktime.
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Press play button to start the movie. |
In this movie, a survey ship uses a multibeam sonar and a side scan sonar. Multibeam measures the depth of the sea floor and the side scan identifies items on the sea floor. Scientists use the multibeam soundings to create rainbow-colored maps that depict the depth of the Sea floor. The side scan sonar paints a black and white image.
Movie Credit: U.S. Naval Oceanographic Office
Click here if you want to see the movie in Quicktime.
Podcasts
Learn about hydrography in this interview with Jerry Mills from the Office of Coast Survey. The discussion highlights why hydrography is important, the tools used to collect hydrographic data, and how it is used. (16:06 minutes)
