2.5.2 Real case – Hurricane Harvey
Hurricane Harvey is one of the most destructive extreme weather events
happened in this study area with damaging winds and urban flooding. The
storm was stalled over the Houston region for one week with continuous
falling of extreme rains to develop pluvial and fluvial flooding,
compounded by costal surges. According to the precipitation estimates by
gauges and radars, 1,539 mm maximum rainfall was observed and most
locations in the study area recorded at least 760 mm rainfall, making it
the wettest tropical cyclone on record. As a result, almost 25-30
percent of Harris Country was submerged during this event. Owing to the
socioeconomic impact, a variety of flood simulations were conducted in
this region (Chen et al., 2021; Dullo et al., 2021; Li et al., 2021b;
Sebastian et al., 2021). The simulation in our study is conducted from
2017-08-26 to 2017-09-01, during which we did not vary model parameters
between scenarios with and without re-infiltration. The parameter values
are optimized from a previous study (Li et al., 2021b). The initial soil
moisture states are obtained from the operational FLASH project
(flash.ou.edu/new).