1. The Hydrological Cycle

2. (i) Processes in the Hydrological Cycle
Inputs
e.g. Precipitation
Transfers
/Stores
e.g. Throughflow , Surface run-off, interception, groundwater flow
Outputs
e.g. Evaporation, transpiration, river channel discharge to sea

3. (i) Processes in the Hydrological Cycle
1. Draw a labeled diagram of the hydrological cycle on the block diagram sheet and use Waugh / unit 2 webpages to help.
Include:
Inputs
Outputs
Stores
Transfers
2. Now explain in your own words the sources of energy that drive the hydrological cycle (see section iv in the notes).

4. (i) Processes in the Hydrological Cycle
Base flow
Run off
Throughflow
Percolation
Infiltration
Through fall/ Stem flow
Evaporation
Soil storage
Groundwater
Surface storage
Interception
Precipitation
(i) Processes in the Hydrological Cycle
River channel

5. Processes in the Hydrological Cycle
Base flow
Run off
Throughflow
Percolation
Infiltration
Through fall/ Stem flow
Evaporation
Soil storage
Groundwater
Surface storage
Interception
Processes in the Hydrological Cycle
Precipitation
River channel

6. Processes in the Hydrological Cycle
Evaporation
Precipitation
Interception
Through fall/ Stem flow
Surface storage
Run off
River channel
Infiltration
Soil storage
Throughflow
Percolation
Groundwater
Base flow/Ground water flow

7. (i) Processes in the Hydrological Cycle
Infiltration
Percolation
Throughflow
Baseflow (Groundwater Flow)

8. (i) Effect of Human Activities on Processes in the Hydrological Cycle
Discharge
Transpiration
Evaporation
Groundwater flow
Percolation
Infiltration
Interception
Precipitation
Overland flow
Human Activities:
Cities (heat islands)
Flood drainage systems e.g. Storm Drains
Global Climate Change due to release of GHG’s
Afforestation/deforestation
Impermeable surfaces such as block
paving / tarmac
Grazing cattle
Irrigating field
Mining / Tunnelling
Groundwater abstraction / artificial recharge
Abstraction from rivers
Task: All of the above human activities alter the hydrological cycle.
For each activity: put a heading in your notes and decide, then explain which process or processes it will alter?

9. (ii) Reservoirs in the Hydrological Cycle
Living organisms
Lakes
Rivers
Oceans
Groundwater
Soil
The atmosphere
Ice
Questions:
Explain why water is an example of a renewable resource?
Why can water supplies if not managed correctly can be used unsustainably?
Define the term abstraction
What is meant by ‘residence time’ and explain in your own words how an
understanding of it may prevent aquifer depletion.
5. Compare the use of UK aquifers with those in some hot countires. Which are
the most sustainable and why?

10. Hydrology CATCH PHRASE........
sAy
whAt U C

13. Type of throw

17. Short for September

19. This area

20. X