Dai Yamazaki¹, Jeison Sosa², Paul D Bates², George Henry Allen³, Tamlin Pavelsky⁴, Dirk Eilander⁵, Sylvain Biancamaria⁶ and Takuto Shiozawa⁷, (1)JAMSTEC Japan Agency for Marine-Earth Science and Technology, Kanagawa, Japan, (2)University of Bristol, School of Geographical Sciences, Bristol, BS8, United Kingdom, (3)Texas A&M University, Department of Geography, College Station, TX, United States, (4)University of North Carolina at Chapel Hill, Chapel Hill, NC, United States, (5)Deltares, Delft, Netherlands, (6)OMP/LEGOS, Toulouse, France, (7)University of Tokyo, Civil Engineering, Tokyo, Japan