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Floods - Coggle Diagram
Floods
Types:
Flash flood
When heavy rainfall occurs over a long period of time
Inundation
Low lying area where water typically accumulates
also happens when ground water rises over land
Overtopping
Happens when water exceeds the level of the street banks
Urban flooding
Volume of rainfall in an urban setting
Tidal flooding
Happens during high tide because of gravitational pull
Storm surge
Impacts
Risk the safety of communities
Damage crops
Damaged infrastructure
Disrupt daily activities
Source of floods
Incoming ocean water
Overflowing rivers
Overflowing canals and storm drains
Heavy rainfall
Factors determining if an area is prone to flood
Amount of water entering an area over time
Topographical setting
Low lying area
Areas surrounded by elevated regions
Advantages
Seasonal flooding is an important source of nutrients in agriculture
Recharging water supply
Definition
Large amount of water submerges dry land