Hyoseop Woo is currently a (Industry-cooperation) Professor at Sejong University, Seoul, Korea. Research interests are river hydraulics, including sedimentation engineering, ecohydraulics, and NbS. He was a co-chair of the special sessions of "Historical water projects and traditional water technologies in the Asian region" in the three IAHR-APD Congresses from 2016 to 2021. Presently working as a Vice President of IAHR Hitoshi Tanaka is presently in the position of President-appointed Extraordinary Professor at Tohoku University, Sendai, Japan. Served as a chairman of IAHR-APD from 2011 to 2014 and a council member of IAHR from 2013 to 2017. Research interests are fluid mechanics such as turbulent wave boundary layers, related sediment movement, and resulting morpho-dynamics in coastal and estuarine environments. Study sites are not limited to Japan but cover other regions worldwide, such as Vietnam, Thailand, Korea, Indonesia, Oman, Bolivia, etc. Gregory De Costa is presently in the position of Principal Academic Engineering, Open Polytechnic of New Zealand, Chartered Engineer, and Fellow of Engineering New Zealand. Research interests are climate change, salinity intrusion, water projects in Sri Lanka and other regions, ancient technologies, and water resources management. Presently working as Chair of IAHR-Asia Pacific Division from 2019. Juan Lu is currently a Professor at China Institute of Water Resources and Hydropower Research, Beijing, China. Research interests are water history and culture, flood control and drought reduction, Pesently working as Director of Research Center of flood control and drought disaster reduction, Ministry of Water Resources, China.
