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Government are freely redistributable with proper metadata and source attribution. Use Constraints: Not to be used for navigation. More information about the cruise can be found on the Woods Hole Coastal and Marine Science Center field activity Web page at.
![hypack 2010 hypack 2010](https://www.xylemanalytics.co.uk/media/products/survey2.jpg)
SwathPlus interferometric sonar (234 kilohertz). These data were collected during two surveys between October 2010 and November 2011 onboard the research vessel (RV) Rafael using an SEA Ltd. The data include high-resolution bathymetry, acoustic-backscatter intensity, sound velocity in water, and navigation data. Accurate data and maps of sea-floor topography are important first steps in monitoring bedform migration, fish habitat, marine resources, and environmental changes due to natural or human impacts. These data were collected to support an assessment of the effect on sediment transport that a tidal instream energy conversion facility would have within Muskeget Channel. Repeat surveys in select areas were collected one month apart to monitor change.
![hypack 2010 hypack 2010](https://cdn.slidesharecdn.com/ss_thumbnails/94a9d2f6-f26d-491c-9e06-8f132c9e3f58-160307131723-thumbnail-4.jpg)
The primary objective of this program was to collect baseline bathymetry for Muskeget Channel, Massachusetts, and identify areas of morphologic change within and around the channel. These data were collected in a collaboration between the Woods Hole Oceanographic Institution and the U.S.