Real-time frontal mapping with AUVs in a coastal environment

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Abstract
-A new oceanographic measurement con- cept is presented, combining a tomographic network with small autonomous undcrwater vehicles. Using wireless local area nctwork technology, the acoustic tomography data arc recorded and processed in real time for achieving a low-resolution estimate oceano- graphic parameters. The results are used to focus direct measurements by a network of small AUV’s in areas of high spatial and temporal variability. By com- bining the high coverage but low resolution of the to- mography with the high resolution capabilities of the AUVs, oceanographic phenomena with small scale dy- namics controlled by large scale environmental forcing can be mapped. The feasibility of , experiment in Haro Strait, BC, aimed at mapping the properties coastal fronts driven by combined estuarian and tidal forcing.

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