STRIDER-a low cost system for deepwater benthic surveys

STRIDER is an acronym for Survey Tool for Remotely integrated Deepwater Research. It represents a low cost, integrated system which streamlines the generation of PC based, georeferenced bottom imagery. Specifically, it employs GPS positioning and FISHCHART electronic charting in conjunction with sidescan and rotary scan sonar and ROV (remotely operated vehicle) video to provide a comprehensive bottom view. The details of system design and operation methodology are discussed. As well, typical applications, such as environmental assessments and fisheries surveys, are described. In the past, such applications were often cost prohibitive. Special focus is given to the unique aspects of this prototype, especially in terms of cost effectiveness and output integration and usability. All data streams (sonar, video, etc) yield georeferenced digital graphic files which can be displayed from the survey database on the client´s PC for postanalysis or printed for reporting purposes. Documentation includes raw and processed survey output data, and illustrates data handling methodology. A summary of development accomplishments and future prospects of this technology is also given