Table 3 An overview of Shanghai’s EUA, UPE-I and UPE-II adaptation strategies

From: Dynamic flood adaptation pathways for Shanghai under deep uncertainty

  

Existing urban adaptation (EUA)

Urban planning enhancement I (UPE-I)

2035 and 2050

Urban planning enhancement II (UPE-II)

2100

  

Adaptation measures

Adaptation measures

Adaptation measures

Nine single adaptation measure

S1

 

Storm-surge barrier

Storm-surge barrier maintenance

S2

Deep tunnel

Deep tunnel-I

Deep tunnel-II

S3

Drainage

Drainage enhancement1

Drainage enhancement2

S4

Green roofs

Green roofs 1

Green roofs2

S5

Dry-floodproofing

Dry-floodproofing1

Dry-floodproofing

S6

 

Wet-floodproofing1

Wet-floodproofing2

S7

Elevation

Elevation1

Elevation2

S8

Storage tanks

Storage tanks

maintenance-I

Storage tanks

maintenance-II

S9

Coastal wetlands

Coastal wetlands maintenance-I

Coastal wetlands maintenance-II

Ten hybrid strategies

H1

 

Hybrid Strategy 1

 

H2

 

Hybrid Strategy 2

 

H3

 

Hybrid Strategy 3

/

H4

 

Hybrid Strategy 4

/

H5

 

Hybrid Strategy5

/

H6

 

Hybrid Strategy 6

/

H7

 

/

Hybrid Strategy 7

H8

 

Hybrid Strategy 8

/

H9

 

Hybrid Strategy 9

/

H10

 

Hybrid Strategy 10

/

  1. The superscripts 1, and 2 refer to the continuous adjustment of investment costs in the future according to the changes of different land use types in 2030, 2050, and 2100. We design adaptation options for the short, medium, and long term. The UPE-I strategy is implemented according to the 2035 urban planning. UPE-II refers to a combination of measures for long-term flood adaptation.