 His work in the field of tsunami research from 1960 to 1985 helped establish current standards for tsunami data measurement.From 1975 to 1977, he was the first Associate Director of the UNESCO Intergovernmental Oceanographic Commission's International Tsunami Information Center(ITIC) in Honolulu, Hawaii.During his tenure at UNESCO, he expanded active participation and information sharing among Pacific Ocean countries with the Pacific Tsunami Warning Center.