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Floods : (Why city prone to flooding (Channel capacity (When there is low…
Floods :
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Causes :
Rainfall :
When rainfall intensity is high, duration of rainfall is long & rainfall frequency is high
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Snowmelt
During winter, snow form on ground & on mountains
During spring, temperature rises---> snow melts
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Storm surge
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Failure of man-made structures
When structures such as dams & levees fail or break,
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Types
Coastal floods
caused by storm surge, tsunami, Failure of man made structures
River floods
Caused by snowmelt, heavy rainfall, failure of man made structures
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Impacts :!!:
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Economic
Damage to Machinery and equipment
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Damage to transport infrastructure
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Floods may submerge and damage roads, bridges or railway tracks , becomes impassable
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Petrol cannot be transported to gas stations--->disruption of energy supply --->factories cannot operate at full capacity--->loss of productivity and income
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Disruption to energy supply
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