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Floods - How can cities prepare for floods ? - Coggle Diagram
Floods - How can cities prepare for floods ?
What are floods ?
Types of floods
Coastal floods
River floods
Flash floods
Causes of floods
Rainfall
Rainfall intensity - millimeters per hour
Rainfall duration - duration of rain event
Rainfall frequency - number of times within a certain period of time
Snowmelt
Storm surge
Failure of man-made structures
Which cities are prone to floods ? Why are these cities more prone to floods than others ?
Cities prone to floods
Factors contributing to floods
Channel capacity
Permeability of surface cover
Proximity to water bodies
Height of land above sea level
How do floods affect people living in cities ?
Social impacts
Injuries, spread of diseases and loss of lives
Homelessness
Disruption to clean water supply
Economic impacts
Damage to machinery and equipment
Damage to transport infrastructure
Disruption to energy supply
How should cities prepare for floods ?
Regulation
Zoning
Elevated properties
Investment in infrastructure
Levees and floodwalls
Channel improvement
Disaster preparedness
Forecasting and warning system
Evacuation drills