Fig.1

Distributions of plan rivers and lakes in Jinshan District"

Fig.2

Range and framework of the 1-D river network model and the 2-D surface model"

Fig.3

Construction of the 1-D and 2-D coupled model"

Fig.4

Hourly distribution of precipitation with “Fate” pattern and 20-year return period over 24 hours"

Fig.5

Location of the Hongqitang to Yuanxiejing breach at the upper Huangpu River"

Table 1

Calculation conditions"

Fig.6

The quantity of total inflow, surface waterlogging, and stream channel storage during a storm surge event with (and without) considering the river network in Jinshan district"

Table 2

Statistics on water accumulation in Jinshan District at a characteristic time under different calculation conditions"

Fig.7

Distribution of maximum surface waterlogging during a storm surge event under calculation condition 0 (left) and calculation condition 1 (right)"

Fig.8

Difference in maximum waterlogging depth with the river network included and excluded during a storm surge event (i.e., calculation condition 1 minus calculation condition 0)"

Table 3

Maximum area and depth of waterlogging in Jinshan District under different calculation conditions"

Fig.9

(a) Maximum area and depth of surface waterlogging during a storm surge event with regional precipitation (calculation condition 2); (b) Maximum area and depth of surface waterlogging during a storm surge event with regional precipitation and flooding (calculation condition 3)"

Fig.10

(a) Difference in maximum waterlogging depth with precipitation included and excluded during a storm surge event (i.e., calculation condition 2 minus calculation condition 1); (b) Difference in maximum waterlogging depth with flood included and excluded during a storm surge event (calculation condition 3 minus calculation condition 2)"

Table 4

Risk level of waterlogging depth at the city or county level"

Fig.11

Risk level distribution in Jinshan District under calculation condition 0(left) and calculation condition 3 (right)"

Table 5

Waterlogging area for different risk levels in Jinshan District under calculation condition 0 and calculation condition 3"

Fig.12

Change in waterlogging risk level from calculation condition 0 to calculation condition 3 in Jinshan District (+ denotes rise, – denotes fall)"

Table 6

Statistics on changes in risk level for waterlogging area in Jinshan District from calculation condition 0 to calculation condition 3"