Side-scan Sonar Data, 2014-2015, Gateway National Recreation Area

Description

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.

Resources

Name Format Description Link
57 Side-scan sonar mosaics (bay side) in GeoTiff format https://irma.nps.gov/DataStore/DownloadFile/647417?Reference=2278770
57 Side-scan sonar mosaics (ocean side) in GeoTiff format https://irma.nps.gov/DataStore/DownloadFile/647416?Reference=2278770

Tags

  • seafloor
  • hxsandy
  • ncbn
  • new-jersey
  • hurricane-sandy
  • bathymetry
  • gate
  • benthic-ecology
  • benthic-habitat-mapping
  • submerged-habitat-mapping
  • sidescan-sonar
  • seafloor-mapping
  • benthic-habitat
  • sediment
  • submerged-habitat
  • northeast-coastal-and-barrier-network
  • gateway-national-recreation-area
  • sandy-hook
  • marine-geology

Topics

Categories