Prof. Hitoshi Tanaka finished his Ph.D. study at Tohoku University, Japan, in 1984. After experience at other universities such as Utsunomiya University (Japan) and the Asian Institute of Technology (Bangkok, Thailand), he was promoted to a full professor of Tohoku University in 1996. He was a visiting researcher at the ISVA (Institute of Hydrodynamics and Hydraulic Engineering), Technical University of Denmark, in 1996. His main research interests lies in fluid mechanics, such as turbulent wave boundary layers, related sediment movement, and the resulting morpho-dynamics in coastal and estuarine environments. His study sites are not confined to Japan, but cover various countries worldwide such as Vietnam, Thailand, Korea, Indonesia, Oman, Bolivia, etc.