Center for Coastal and Ocean Mapping/ Joint Hydrographic Center, Univeristy of New Hampshire, 24 Colovos Road, Chase Ocean Engineering Lab, Durham, NH 03824 United States
Department of Geological and Environmental Sciences, Stanford University, Stanford University, Stanford, CA 94305 United States
Institute of Solid Earth Physics, University of Bergen, Allegt 41, Bergen, 5007 Norway
Geological Survey of Canada, 1 Challanger drive, PO Box 1006, Bedford, Nova Scotia, B2Y 4A2 Canada