G1 Rivers

2.4 How much precipitation is returned to the Oceans?
1/3
1 of 53
2.4 How much water is evaporated, transpired or infiltrated?
2/3
2 of 53
2.4 How much water can interception remove from the system?
30%
3 of 53
2.4 What are river regimes?
Variations in river runoff or discharge over the course of the year
4 of 53
2.4 What are rivers in humid environments fed by?
A constant flow of groundwater
5 of 53
2.4 What climate does the River Vascao have?
Mediterranean
6 of 53
2.4 What climate does the River Congo have?
Rainforest
7 of 53
2.4 What glacier used to feed the Slims river in Canada?
Yukon's Kaskawulsh Glacier
8 of 53
2.4 What river does the Kuskawulsh Glacier now feed>
The Alsek River
9 of 53
2.4 Dartmoor National Park was a high density drainage basin. Why?
It is characterised by impermeable rock- Granite.
10 of 53
2.4 How does Weather affect hydrographs?
Intense storms with heavy rainfall = flashy hydrography. Steady rainfall = subdued hydrograph
11 of 53
2.4 What are spatial variations in river regime?
Discharge changes from place to place
12 of 53
2.4 What are spatial variations influenced by?
Climate, geology, land use and river management of the area
13 of 53
2.4 What are temporal variations in a river regime?
Changes over time
14 of 53
2.5 How many people in England and Wales are now at risk of coastal or river flooding because floodplains have been built on?
5 million
15 of 53
2.5 How many properties in England and Wales are now at risk of coastal or river flooding because floodplains have been built on?
2.3 million
16 of 53
2.5 What causes groundwater flooding?
Continuous rainfall for a long period of time
17 of 53
2.5 How long can grounwater flooding last?
days or weeks
18 of 53
2.5 When was groundwater flooding a problem in France?
2001
19 of 53
2.5 What French drainage basin was affected by groundwater flooding?
Somme Basin
20 of 53
How long did flooding last in the Somme Basin?
2months
21 of 53
When did Groundwater flooding affect Lewes, East Sussex?
October 2000
22 of 53
How many houses were flooded in Lewes?
600
23 of 53
How many businesses were flooded in Lewes??
200
24 of 53
What dam failed in July 2007? Where was it?
Ulley dam in South Yorkshire?
25 of 53
How many villages were threatened by the failure of the Ulley dam?
3
26 of 53
How many people were evacuated in July 2007 due to the failure of the Ulley dam?
700
27 of 53
How many people died when the Coedty dam in Snowdonia failed?
17
28 of 53
When did the Coedty dam fail?
1925, when 660mm of rain fell in 5 days
29 of 53
What causes flash floods?
excessive, localised rainfall
30 of 53
How much rain fell over Boscastle in August 2014?
185mm
31 of 53
By how much did river levels rise by in the Boscastle flash flood of August 2014?
2m in 1 hour
32 of 53
What is fluvial flooding?
River flooding when discharge exceeds the channels capacity
33 of 53
How much rainfall fell over Western England, Wales and parts of Scotland in July 2007?
150mm (2-3 times the average rainfall)
34 of 53
What caused the heavy rainfall in July 2007?
The position of the jet stream, it travelled south of the UK instead of its usual northern place
35 of 53
How did the Ocean affect ainfall in July 2007?
Abnormally high Atlantic sea-surface temperatures increased evaporation
36 of 53
How much rain did Tewkesbury receive on the 20th July?
80-90mm (2 months worth)
37 of 53
Where is Tewskebury located?
Gloucestershire, at the confluence of the Avon and Severn
38 of 53
How many people were stranded on the M5?
10,000
39 of 53
How man people spent the night at Gloucester railway station when the railway network failed?
500
40 of 53
Where were temporary defences erected? why?
Walham electricity substation- to prevent 500,000 people losing electricity
41 of 53
How many people were left without power for 24hrs in Gloucester?
42,000 Castle Meads power substation shut as a precaution
42 of 53
How many people died?
13
43 of 53
How may people were left without ater supply for 8 weeks?
350,000
44 of 53
How much did the Tewkesbury flood cost?
£140 million for local councils
45 of 53
When did a deepening slow-moving depression cross Northern England?
25th July 2007
46 of 53
How many properties were inundated in Hull?
7,800
47 of 53
How many homes were evacuated in Hull?
10,000
48 of 53
How many people were affected in Hull?
35,000
49 of 53
What % of schools were damaged in Hull?
95%
50 of 53
How many businesses in Hull were affected?
1,300
51 of 53
Why was Hull vulnerable to the flood?
Low lying land (90% below high tide level) and large parts built on reclaimed marshland
52 of 53
How much of Bangladesh is 1m above sea level?
70%
53 of 53

Other cards in this set

Card 2

Front

2.4 How much water is evaporated, transpired or infiltrated?

Back

2/3

Card 3

Front

2.4 How much water can interception remove from the system?

Back

Preview of the front of card 3

Card 4

Front

2.4 What are river regimes?

Back

Preview of the front of card 4

Card 5

Front

2.4 What are rivers in humid environments fed by?

Back

Preview of the front of card 5
View more cards

Comments

No comments have yet been made

Similar Geography resources:

See all Geography resources »See all Rivers and fluvial processes resources »