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7 Cards in this Set
- Front
- Back
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Urbanisation |
Decreases infiltration Increases runoff Run off flows faster |
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Deadliest natural disaster in history |
1931 china flood Killed between 2.5-3.7 milliin |
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Worst us disaster of its kind (flood) |
Missippippi river basin 1993 Submerged 75 townsDestroyed or damaged 50,000 homes 1083 out of 1576 levees failed Caused $12 billion in damages |
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1997 Antelope Canyon Flash Flood |
• Thunderstorm 11 miles away can’t be seen or heard • 11-foot high wall of water rushed down the narrow canyon & swept away 12 hikers (1 survived) • Visitors on the canyon rim watched helplessly |
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1976 Big Thompson Canyon, CO |
1976 Big Thompson Canyon, CO Flash Flood • 8” of rain fell in 1 hour, over 12” in 4 hours • 2-foot deep stream became a 20-foot high wall of water • Killed 139 (including six who were never found) • Caused $40 million in damages. |
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Pakistan July-Aug. 2010 |
Pakistan July-Aug. 2010 The country’s worst floods in recorded history. They killed more than 2,000 people and affected 18 million – morethan a tenth of the population. |
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1931 China floods |
1931 China floods • nearly 1000 levees broke;resulting in 5000 miles of levees in need of repair |
