river case studies

?
waterfall example
bridal veils falls, new zealand
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what is the river called?
river pakota plunged 20m over tough igneous dolerite
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arcuate delta?
Nile delta
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how big is it?
240kmn
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what are the two main distributaries known as?
damietta and rosetta
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what happened to this delta?
no longer recieves fertile sediment due to Aswan Dam
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bird-foot?
Mississippi
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river rejuvination?
river rheidol, wales
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what happaned?
river rheidol caputred the headwaters of the river teifi at devils bridge
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At what altititude?
250m above sea level
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how big is the gorge?
falls 500m in just 45km
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where is there an incised meander?
parson's bridge. due to rapid vertical erosion exceeds lateral erosion.
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flooding in MEDC
cumbria, 2009
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what was it caused by?
torrent of warm moist air from the south atlantic forced to rise by high cumbrian mountains
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where was there a torrent of water?
2.5m in cockermouth
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how many died?
only 1 from a bridge collapse (compared to 250)
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how many homes displaced?
1300
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eventual cost?
100million
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LEDC floods
Phillipines, Sept 2009
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what was the island called?
Luzon
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what was the typhoon called?
Ketsana
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how much rain fell?
445 in just 24hrs
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what happened in Marikina
river bursts its banks in a vast urban sprawl
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how many died?
250
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how much rice production effected?
3%
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how many displaced
30,000
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poltical effectd
criticism of lack of gov warning
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channelisation
river witham, licolnshire
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how much did discharge capacity increase?
from 13m3/s to 31m3/s
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where is there a dam?
three gorges dam, china
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where are there enhanced levees?
mississippi
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Other cards in this set

Card 2

Front

what is the river called?

Back

river pakota plunged 20m over tough igneous dolerite

Card 3

Front

arcuate delta?

Back

Preview of the front of card 3

Card 4

Front

how big is it?

Back

Preview of the front of card 4

Card 5

Front

what are the two main distributaries known as?

Back

Preview of the front of card 5
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