Table 1 Projected populations affected in all 406 coastal counties exposed across four spatio-temporal zones between 2000 and 2100 under Shared Socioeconomic Pathway 2 (SSP) and Representative Concentration Pathway 4.5 (RCP) in millions.

From: Assessing population exposure to coastal flooding due to sea level rise

Specified level of SLR

Coastal Floodplains

 

Year

High-Tide Line

EAE

100-year Flood Plain

LECZ

Total

2000

0.15

0.61

2.39

29.00

107.15

2020

0.23 (0.2–0.27)

0.97

3.41 (3.11–3.81)

39.89 (38.92–40.89)

133.61 (130.84–136.47)

2050

0.46 (0.28–0.82)

1.78

5.32 (3.75–7.58)

52.32 (43.24–62.3)

165.95 (138.18–195.85)

2070

0.74 (0.31–1.78)

2.63

6.94 (3.84–11.88)

58.79 (42–78.95)

181.9 (131.42–240.91)

2100

1.23 (0.31–5.09)

4.13

8.95 (3.42–22.26)

63.36 (35.59–100.07)

190.07 (108.8–293.77)

  1. Uncertainty intervals in parentheses relate to SSP3, 5th percentile and SSP5, 95th percentile. Total refers to the total population in all 406 coastal counties. Note that each spatial zone and related class are cumulative, not mutually exclusive. For example, the Low-Elevation Coastal Zone (LECZ) estimate encompasses all other spatial zones.
Back to article page