Bathymetry Data, 2014-2015, Gateway National Recreation Area
Grothues T. 2017. Bathymetry Data, 2014-2015, Gateway National Recreation Area
The side scan sonar survey was done simultaneously with the bathymetry swath survey and used an EdgeTech Model 4125 Towfish bow-mounted from Lookdown at 400 and 900 kHz. The 4125 Towfish utilizes EdgeTech’s Full Spectrum CHIRP technology to produce higher resolution images than a non-CHIRP system. EdgeTech Discovery Software was used to acquire the side scan sonar data using the JSF format at a resolution of about 2.3 cm. All JSF files collected using EdgeTech’s Discover Software were processed using John Gann’s Chesapeake Technology SonarWiz5. Dimensions of contacts should be considered accurate to +/- 30% of the measured dimensions. This system also records the direct arrival intensity data.
- Type
- Geospatial Dataset
- Authors
- Grothues, Thomas
- Date of Issue
- 2017-02-10
- Units
- GATE , NCBN
- Keywords
- bathymetry, Benthic Ecology, benthic habitat, benthic habitat mapping, GATE, Gateway National Recreation Area, Hurricane Sandy, HxSandy, marine Geology, NCBN, New Jersey, Northeast Coastal and Barrier Network, Sandy Hook, Seafloor, Seafloor Mapping, Sediment, Sidescan Sonar, submerged habitat, submerged habitat mapping