Pickering Beck

Question 1

What are the human activities affecting flooding?

Answer 1

Urbanisation
Agriculture -> Pastoral
Climate Change

Question 2

What does soil erosion lead to?

Answer 2

Siltration

Question 3

What is siltration?

Answer 3

Soil transported to river channels -> reduces the possible volume of water -> flooding

Question 4

Where is it located?

Answer 4

North Yorkshire in the North York Moors National Park

Question 5

What is the Pickering Beck?

Answer 5

Tributary of the River Derwent

Question 6

How large is the catchment?

Answer 6

68KM2

Question 7

What does the catchment consist of?

Answer 7

Permeable rocks, such as limestone and gritstones

Question 8

What is the term used after long periods of rainfall?

Answer 8

Antecedental rainfall

Question 9

How are lithospheric stores of water created?

Answer 9

Precipitation infiltrating and percolating via permiable rock

Question 10

The flat valley floor doesn’t let the water spread out. ToF

Answer 10

False, it allows water to spread out

Question 11

What is the reason as to why the catchment is so vunerable to flash floods after heavy rain in the summer.

Answer 11

Steep valley sides

Question 12

How many times had the beck flooded town centre?

Answer 12

4

Question 13

What years did it flood?

Answer 13

1999, 2000, 2002, 2007

Question 14

Which year did it result in £2.1 billion of damage? What regions were impacted?

Answer 14

2007 as it affected the whole of Yorkshire & Humber region

Question 15

In 2007 x properties were flooded

Answer 15

X = 85

Question 16

What is the policy to reduce flooding in Pickering called?

Answer 16

Slowing the flow

Question 17

Why is it easy to change aspects of the catchment?

Answer 17

1/3 is in public ownership (NYMNP & Forestry Commision primary owners)

Question 18

What else does the policy increase?

Answer 18

Biodiversity, water quality, community involvement

Question 19

Low level bunds at X mean water can be stored in the upper catchment until discharge decreases.

Answer 19

Newtondale

Question 20

What are bunds?

Answer 20

Banks

Question 21

Riparian woodland of hydrophilic plants such as alder and willow has been planted in strips 30m wide on either side of the Beck, what does this create?

Answer 21

A water store

Encourages infiltration

Question 22

Moorland drains have been what?

Answer 22

Blocked

Question 23

What were the moorlands blocked by?

Answer 23

Heather bales

Question 24

What do heather bales encourage?

Answer 24

Natural storage within moorland, reducing foow to the beck