1. National Oceanography Centre, European Way, Southampton SO14 3ZH, UK
2. Geological Survey of Canada, Institute of Ocean Science, Canada
3. United States Geologic Survey, Santa Cruz, USA
4. Center for Coastal and Ocean Mapping/Joint Hydrographic Center, New Hampshire, USA
5. Monterey Bay Aquarium Research Institute, Moss Landing, USA
6. Departments of Earth Sciences and Geography, Durham, UK
7. Canadian Coast Guard, Victoria, BC V8V 4V9, Canada
8. Southern University of Science and Technology, Shenzhen, China
9. Energy and Environment Institute, University of Hull, Cottingham Road, Hull HU6 7RX, UK
10. Marine Geosciences Unit, IFREMER, Centre de Brest, CS10070, 29280 Plouzané, France