physical sddd

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where has the greatest local tidal range?
6m, atlantic ocean & north sea confine in narrow section eng channel
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where has tide in narrow estuary?
bristol channel, confined severn estuary, 13m
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where was cliff collapse?
Hollbeck Hall in 1953
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what is a concordant coastline?
rock runs in parallel to coast, present in Lulworth Cove
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what is a discordant coastline?
bands of differing rock in perpindicular to coast, dorset
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how much does holderness coastline erode a year?
2m a year and 2 million tonnes
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what is the rock composition?
underlying chalk overlan by glacial till deposits
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where was recently cliff collapse?
Algarve, portugal. 2009, 5 killed
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what is the most northernly point of Holderness?
flamborough head made up of white chalk cliffs
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where is there an unstable spit?
Spurn Head, Devon
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where is spurn head?
northern side of humber estuary
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how long is the spit?
8km
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where is the dominant wind?
north to east, curves spit towards humber estuary
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example of coastal management in holderness?
mappleton, 2 million spent, blocks of granite from norway, groynes
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when was there a storm surge?
1953
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what happened?
combined effect high tide, storm surge and low-pressure system
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what did it cause in england and netherlands?
3m rise of sea in nertherland and 2m in england
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how many killed?
264 killed in england and 1835 in netherlands
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how many homes at risk of flooding?
3 million and 200,000 unable to be insured
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what year and where was there coastal flooding in wales?
1990, towyn
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what breach of sea wall was there?
400m breach
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how much was repair on revetments?
2 million
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what will future sea level rises cause?
shorten intervals to 1-in-75 years
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where was coastal flooding LEDC?
Bangladesh- 2004
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what is bangladesh?
low-lying river delta with most under water
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what % of land did flood cover?
50%
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how many died?
600 died
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how many suffered illness?
100,000 in Dhaka
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how much damage?
7 billion
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coastal protection in essex?
walton-on-the-naze
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how long is peninsula?
3KM NORTH
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what rocks composition?
london clay overlain by red crag/sands/gravels
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what sea pounds the coast?
north sea
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how much does the coastal protection stretch?
4km
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what happened to cliffs?
regraded to make them less steep
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how much was spent in 2010?
1.2 million
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where was there managed retreat?
abbotts hall farm, essex
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how much sea wall breached?
3.5km aslong blackwater estuary, 5 times breached
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where cost/benefit analysis?
Lyme regis, dorset
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what was constructed to stop longshore drift?
the cobb which caused build up of malmouth beach
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when was phase 1 completed?
1995
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what did phase 1 do?
built sewage which was protected by rock armour
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what did phase 11 do?
protected the foreshore by rock armour and curved sea wall
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how much in total?
33 million
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what was cost/benefit ratio?
6.04
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Other cards in this set

Card 2

Front

where has tide in narrow estuary?

Back

bristol channel, confined severn estuary, 13m

Card 3

Front

where was cliff collapse?

Back

Preview of the front of card 3

Card 4

Front

what is a concordant coastline?

Back

Preview of the front of card 4

Card 5

Front

what is a discordant coastline?

Back

Preview of the front of card 5
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