Geopotential : The unit of geopotential difference, equal to the gravity potential of 1 meter squared per second squared, m / s , or 1 joule per kilogram, J / kg. 2 210
National Oceanic and Atmospheric Administration NOAA, Tide and Current Glossary, National Ocean Service, CO-OPS, Products and Services N/OPS3, Silver Spring, MD, USA 1999. http://co-ops.nos.noaa.gov/publications/glossary2. pdf, (ND/ Tide and Current - Amer) {830}
