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Sub-Bottom Profile

NOAA Coastal Services Center

Data Specifications

  • Area of Coverage: Targeted bay or estuary systems or individual river reaches. Collected as transects organized to cross transition zones at selected areas within a bay or estuary.       
  • Dates Available: Vary by location, ranging from 2003 to 2009  
  • Format: SEG-Y, .JPG
  • Resolution/Scale: Less than 1 meter
  • Accuracy: Positional accuracy varies by project, usually within 10 meters 

     

Overview

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Sub-bottom profile data complement other benthic data types such as acoustic backscatter and grab sampling by providing a record of the composition, structure, and layering of soft sediments below the seafloor. This information can be used to understand sediment dynamics, identify historical features and habitats, and understand the evolution of aquatic systems.