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Sound Velocity for Multi-Beam Systems

Multibeam systems are the primary technology for mapping the sea floor.  However, multi-beam systems require instrumentation for sound velocity measurement and correction at the sea-surface and throughout the water column.  Without such measurements, multi-beam accuracy is jeopardized.  Most multi-beam systems include both a sound velocity profiler (see below, the Minos SVP) and a sea-surface sound velocity instrument (the Micro SV) as listed below. 

  What is a Multi-beam System?
Multi-beam echo sounders are now the standard technology used to survey the ocean bottom.  Click here to get an overview of how such systems function.
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  Why is Accurate Sound Velocity Critical?
Sound velocity plays a critical role in ensuring multi-beam accuracy.  As multi-beam accuracies advance, the dependency on sound velocity - both at the sea surface and in the vertical profile - increases dramatically.  Click here to learn more.
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  Who Manufactures Multibeam Systems?


There are a number of manufacturers of multibeam systems, including R2Sonic, Kongsberg, Reson, Atlas, and L-3 Elac.  Click here for a description of the sound velocity packages that AML offers for each manufacturer's system.
  Why Choose an AML Sound Velocimeter?

Measured sound velocity is more accurate than sound velocity calculated from a CTD by a factor of 10.  AML Oceanographic pioneered the measurement of sound velocity in the late 1990s.  More recently, AML is the only provider of sound velocity instrumentation to offer field-swappable sensor-heads.  Learn more...