Digital Coast

Details

• Collected by a towfish suspended close to the bottom behind the survey vessel or mounted on a pole fixed to the vessel hull
• Captures sediment thickness and layering
• Identifies buried features
• Requires coring to validate
• Data available in:
  • Florida – Apalachicola Bay
  • New York – Hudson River

Notes and Limitations: Sub-bottom data are acquired in transect mode and require a vector track file to be integrated with other spatial data. No sub-bottom information in hard substrate areas, which reflect the incident sonar pulse. The native .seg-y file requires a specialized viewer to examine the files.