Q3. Rivers

Question 1

Flashy hydrography have a _____ lag time + a ____ flooding risk.

Answer 1

Short lag time + high flooding risk.

Question 2

Subdued hydrography have a _____ lag time + a ____ flooding risk.

Answer 2

long lag time + low flooding risk.

Question 3

Give 3 hard-engineering strategies for managing floods:

Answer 3

Embankments, channelisation, flood relief channel, dams/ reservoirs, flood walls, storage area

Question 4

Give 3 soft-engineering strategies for flood management:

Answer 4

Washland, floodplain zoning, afforestation, warning systems

Question 5

River Ouse, York (flooding case study) - name 2 effects.

Answer 5

Economy hit hard, 200,000 fewer visitors -> £10 million lost income, 3,000+ people evacuated.

Question 6

River Ouse, York (flooding case study) - name 2 defences.

Answer 6

Flood walls, flood gates, embankments.

Question 7

What does a hydrographic show the relationship between?

Answer 7

A period of heavy rainfall or storm and river discharge (volume of flowing water).