Hibbard Inshore created a sonar model from a dual imaging sonar head system on an ROV from inside an outfall to show how much debris had accumulated and whether or not the diffusers were occluded. The sonar was able to image the end of the outfall despite the lack of cross section at the end that prevented the ROV from passing. We used the model in a flow analysis to determine if the debris buildup was detrimental to the operation of the outfall.
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