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pl23_map00080.jpg

This submarine valley was discovered by the U

Image

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Permalink

https://www.noaa.gov/media/digital-library-photo/pl23map00080jpg

Description

This submarine valley was discovered by the U.S. Coast and Geodetic Surveyduring survey operations using acoustic sounding systems coupled with thenewly developed Radio Acoustic Ranging (RAR) navigation system allowingrelatively accurate navigation without having to rely on either visualastronomic positioning or visual ties to objects on land.

Credit

NOAA Central Library Historical Collection

Collection

Voyage to Inner Space

Keywords

Exploration

Maps