2.2.2 spase://SMWG/Person/Koichi.Kumakawa 2012-04-20T12:34:56.789 Koichi Kumakawa Hydrographic Department, Maritime Safety Agency, Tokyo

Geodesy and Geophysics Division, Hydrographic and Oceanographic Department, Japan Coast Guard, 3-1 Tsukiji 5-chome, Chuo-ku, Tokyo 104, Japan

chijiki@jodc.go.jp