32-Channel Digitizer for a Moored Hydrophone

Long Term Goals: Acquisition of an in situ, 32-chanel digitizer capable of sampling at a rate of 8kHz, with a maximum depth rating of 1 km and data storage capacity sufficient to support continuous recording for a 10-day deployment. This system, when coupled to an existing, 32-channel hydrophone array owned by the Naval Postgraduate School, will enable future research efforts to investigate three-dimentional effects on sound propagation caused by a sharp front, large amplitude internal waves, and significant batheymetri changes, which are common environmental features in a shelf-slope environment. The procurement of the proposed 32-channel digitizer will help to fill the data and knowledge gaps that exist in the shallow-water acoustics research community. The first deployment will be in the next multi-institutional shallow-water acoustics experiment that is targeted for the FY14 timeframe