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SHHS Edexcel Year 12 Geography > Water Insecurity > Flashcards

Flashcards in Water Insecurity Deck (16)
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1

Precipitation

Moisture in any form.

2

Channel Flow

The volume of water flowing within a river channel (also called discharge, and runoff)

3

Surface Runoff

Also called overland flow. Flow over the surface during an intense storm, or when the ground is frozen, saturated or on impermeable clay.

4

Interception

Temporary storage, as water is captured by plants, buildings and hard surfaces before reaching the soil.

5

Throughflow

Also known as inter-flow; water seeping laterally through soil below the surface, but above the water table.

6

Percolation

The downward seepage of water through rock under gravity, especially on permeable rocks e.g. sandstone and chalk.

7

Evapotranspiration

The combined effect of evaporation and transportation.

8

River discharge

The volume of water passing a certain point in the channel over a certain amount of time.

9

Evaporation

The conversion of water to vapour

10

Transpiration

Water taken up by plants and transpired onto the leaf surface

11

Vegetation Storage

Any moisture taken up by vegetation and held within plants

12

Surface storage

Any surface water in lakes, ponds, puddles

13

Soil moisture ;)

Water held within the soil

14

Groundwater storage

Water held within permeable rocks aka an aquifer (an underground lake)

15

Channel storage

Water held in rivers and streams

16

Infiltration

Water entering the topsoil. Most common during slow or steady rainfall