| Summary: | Approved for public release; distribution is unlimited === From the summer cruise of the Mid-Atlantic Bight Experiment, conducted jointly by Naval Postgraduate School, University of Rhode Island, and Woods Hole Oceanographic Institution, a study of acoustic variability in the region of Mid-Atlantic Bight shelf break was conducted. The period of the experiment was 19 July to 09 August 1996. The experiment consisted of a suite of acoustic and oceanographic sensors including three 400 Hz (100 Hz bandwidth) transceivers, one 224 Hz (16 Hz bandwidth) transceiver and two vertical line arrays (VLAs). This study involves the signal processing of data collected by a telemetry buoy, an analysis of the spatial and temporal coherence of the phones and plane-wave beams of the vertical array, and the tidal and seasonal variabilities of plane-wave arrivals at the vertical array. Results of the changes in arrival time of the beams, the horizontal displacement of the front, the changes in the speed of propagation of the wave, and the change in the water temperature are discussed
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