U.S. Naval Research Laboratory/Marine Physics Branch (Code 7420). “GOMaP GLOBAL OCEAN MAPPING PROJECT”. U.S. Naval Research Laboratory. 2 July 2014時点のオリジナルよりアーカイブ。30 June 2014閲覧。
U.S. Naval Research Laboratory/Marine Physics Branch (Code 7420). “GOMaP GLOBAL OCEAN MAPPING PROJECT”. U.S. Naval Research Laboratory. 2 July 2014時点のオリジナルよりアーカイブ。30 June 2014閲覧。