1 Field survey of the 2017 Typhoon Hato and a comparison with storm 2 surge modeling in Macau 3 Linlin Li1*, Jie Yang2,3*, Chuan-Yao Lin4, Constance Ting Chua5, Yu Wang1,6, Kuifeng 4 Zhao2, Yun-Ta Wu2, Philip Li-Fan Liu2,7,8, Adam D. Switzer1,5, Kai Meng Mok9, Peitao 5 Wang10, Dongju Peng1 6 1Earth Observatory of Singapore, Nanyang Technological University, Singapore 7 2Department of Civil and Environmental Engineering, National University of Singapore, Singapore 8 3College of Harbor, Coastal and Offshore Engineering, Hohai University, China 9 4Research Center for Environmental Changes, Academia Sinica, Taipei 115, Taiwan 10 5Asian School of the Environment, Nanyang Technological University, Singapore 11 6Department of Geosciences, National Taiwan University, Taipei, Taiwan 12 7School of Civil and Environmental Engineering, Cornell University, USA 13 8Institute of Hydrological and Ocean Research, National Central University, Taiwan 14 9Department of Civil and Environmental Engineering, University of Macau, Macau, China 15 10National Marine Environmental Forecasting Center, Beijing, China 16 Corresponding to: Linlin Li (
[email protected]) ; Jie Yang (
[email protected]) 17 Abstract: On August 23, 2017 a Category 3 Typhoon Hato struck Southern China. Among the hardest hit cities, 18 Macau experienced the worst flooding since 1925. In this paper, we present a high-resolution survey map recording 19 inundation depths and distances at 278 sites in Macau. We show that one half of the Macau Peninsula was inundated 20 with the extent largely confined by the hilly topography. The Inner Harbor area suffered the most with the maximum 21 inundation depth of 3.1m at the coast.