Water - Key Terms

Question 1

Define Store

Answer 1

Reservoir in which water is held

Question 2

Define Flux

Answer 2

Rate of flow between stores

Question 3

Define Cryosphere

Answer 3

Regions in which water is frozen into snow or ice

Question 4

Define Blue Water

Answer 4

Water stored in rivers, streams, lakes + groundwater in liquid form

Question 5

Define Green Water

Answer 5

Water stored in soils + vegetation

Question 6

Define Residence Time

Answer 6

Average amount of time spent by a water molecule within a store

Question 7

Define Fossil Water

Answer 7

Ancient groundwater from former pluvial (wetter) periods

Question 8

Define Transpiration

Answer 8

Diffusion of water from vegetation into the atmosphere

Question 9

Define Groundwater Flow

Answer 9

Slow transfer of percolated water underground through pervious or porous rocks

Question 10

Define Throughfall

Answer 10

Rain penetrates leaves, twigs, trees etc. following spell of persistent/intense rainfall

Question 11

Define Percolation

Answer 11

Deep transfer of water from surface into rocks below, particularly permeable + porous rock types

Question 12

Define Evapotranspiration

Answer 12

Combined effect of evaporation + transpiration

Question 13

Define River Regime

Answer 13

Annual variation in discharge or flow at particular point