tone and parret Flashcards

1
Q

where abouts in england

A

se england

sommer set levels

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2
Q

when did it hapen

A

winter/jan 2013-14

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3
Q

1st physical cause

A

prolonged rainfall

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4
Q

describe 1st cause physical

A

jan 2014, 207 mm rainfall

200% higher than average

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5
Q

explain physical cause 1st

A

prolonged rainfall leads to saturated grounds
increase surface runoff
less infiltration
more water in channel

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6
Q

2nd physical cause

A

low lying ground

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7
Q

describe 2nd physical

A

sommer set levels lie 3-5m above sea levels

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8
Q

explain 2nd physical

A

normally river would drain bristol channel
due to high tide and storm surges
river backed up
flooded into floodplain

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9
Q

1st human cause

A

lack of dredging

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10
Q

describe 1st human cause

A

environmental agency decided to stop dredging the river

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11
Q

explain 1st human cause

A

dredging takes material from bed and banks of river so therefore more water
but not dredging it cant hold as much so it overflows

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12
Q

2nd human cause

A

change in farming

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13
Q

describe 2nd human cause

A

grasses to maize

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14
Q

explain 2nd human cause

A

more intensive means less able to maintain water
less infiltration
more surface run off

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