Bottom-up analysis

Nested surveys from Nazare Canyon

Nested surveys: datasets with increasingly higher resolution, but therefore reduced spatial coverage, are providing additional detail to support the interpretation of seabed habitats. Finding the quantitative link between those scales is the challenge. (Photography, ROV-based bathymetry, TOBI sidescan sonar and ship-borne bathymetry.)

 

Finding quantitative relationships that can bring infomation from a more detailed to a broader scale

Work package WP3 aims:

  • Extrapolating the maximum amount of quantitative information from the highest-resolution data (which have limited coverage) to the extensive surface area covered by the lower resolution data
  • Based on nested optical/acoustic surveys with medium-scale sidescan sonar data as stepping-stone
  • An evaluation of fractal theory and novel kriging algorithms.

 

Results:

 

category: 

Information for…