Upward looking sonar

Encyclopedia : U : UP : UPW : Upward looking sonar

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An upward looking sonar (ULS) is a sonar device pointed upwards looking towards the surface of the sea, and used to measure sea ice depth. Often it is moored to the bottom of the ocean and floats at a constant depth of perhaps 100 m. They may also be used by submarines.

External links

• http://www.aslenv.com/iceprofiler.htm
• http://nsidc.org/data/g01360.html

 

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