Sonar Performances - Essay Example

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Sonar Performances

This project entails the planning and execution of an oceanographic survey to determine the differences in sound velocity variables over the neap and spring tide cycles in the Dart and Tamar estuaries, and their impact on sonar-related performances. This study is largely based on research provided by Desiree Batton in conjunction with the Hydrographic Society, The Dart Observatory at the Britannia Royal Naval College and Graham Tattersall of the CEFAS Lowestoft Laboratory, as well as additional research. The tide cycles at the mouths of these two estuaries differ in some factors that influence the movement of sound. This paper plans to show what those factors are and how they affect sonar usage.
The report will present data that was ascertained by using the current appropriate techniques and tools. It will analyze the variability of sound velocity, present the results and make determinations based on those analyses and calculations.
Several determinations will be necessary to conclude this paper, such as the variations in bottom sound velocity as opposed to the variations in surface sound velocity. ...Show more


Sound velocity or speed varies considerably in different conditions underwater. One of the biggest differences is the level of salinity in the water, so where seawater meets freshwater there is a dramatic change in sound velocity. This information is very important to anyone using sonar equipment in areas where the salinity levels, as well as other factors, changes.
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