Water

Solar energy

energy from the sun

Gravitational potential energy

water moves by gravity, runoff and groundwater flow are transported to the sea

Crysophere

water stored as frozen in the earth

Biosphere

water stored where life exists

Flux

flows of water across a fixed time period

Store

where water is held

Global water budget

The difference between inputs and outputs

Fossil water

freshwater stored deep in ground from rain a long time ago that isn’t restored by people so is non-renewable

Drainage basin

an area drained by a river and its tributaries

Precipitation

cooling and condensing of water moisture in the atmosphere forming clouds that release moisture

Interception

the direct intervention of plants leaves in changing the direction or temporarily stopping precipitation as it falls to the surface

Surface storage

the total volume her on the earths surface at one time - in lakes, ponds and puddles etc

Groundwater storage

the storage of water underground in permeable rock strata

Infiltration

the movement of water from surface into soil

Throughflow

movement of water downslope within the soil layer

Percolation

gravity flow of water within the soil

Base flow

when the discharge returns to normal

Surface runoff

the movement of water over a surface of land

Evaporation

the transformation of water droplets into wa

Transpiration

evaporation from plant leaves

Evapotranspiration

the loss of water form a drainage basin into the atmosphere from leaves of plants - loss of evaporation

River discharge

amount of water that passes a given point in a given amount of time

Recharge

precipitation following a dry period