PHYSICAL: Impact of weather and climate

Question 1

Impact of weather- INCREASING FREQUENCY OF STORMS

Answer 1

More periods of heavy, intense rainfall means more water flowing in to rivers, which then overflow increasing flood risk

Question 2

Impact of weather- DROUGHT

Answer 2

Bakes the upper soil so when it does rain the water runs off the surface, it cant soak in so it reaches rivers quickly via surface run-off and rapidly increases discharge.

Question 3

Impact of weather- COLD CONDITIONS

Answer 3

Soil becomes imperable, snowmelt cannot infiltrate and flows rapidly in to river, increasing flood risk

Question 4

Impact of climate- EROSION RATE

Answer 4

Increases with greater discharge. in wet climates more material is eroded, widening and deepening river channels as well as increasing the sediment load.

Question 5

Impact of climate- WEATHERING

Answer 5

Freeze thaw weathering increases in areas where temperatures around are freezing

Question 6

Impact of climate- DISCHARGE

Answer 6

Wetter climates mean greater discharge. hotter temps mean greater evaporation so less discharge. GREATER DISCHARGE = GREATER VELOCITY