Processes in the water cycle Flashcards
(30 cards)
What is the hydrosphere
liquid water on earths surface, oceans lakes ect
What percentage of global water is stored in the hydrosphere
96.5%
what’s the cryosphere
frozen area of the planet eg glaciers and ice sheets
what percentage of global water is stored in cryosphere
1.7%
What’s the lithosphere
solid outer part of earths crust, rock
where and how much water is stored in lithosphere
1.7% , in aquifers ect(in rocks)
How is water stored in the atmosphere
water vapour and clouds
how much water is stored in the atmosphere
0.001%
what are surface stores of water
water stored in lakes and river channels
what is groundwater
water stored within porous rock underground
what is the water table
upper level of saturated rock
what’s interception
leaves, stems, and trunks can stop water from reaching the ground and temporarily hold water
what’s absorption
vegetation takes up water through the root system
what type of system is a drainage basin
open system
what type of system is the water cycle
closed system
precipitation (input)
any form of water falling from the atmosphere to the earths surface including rain snow sleet and hail
evaporation (output)
sun heats surface of water (eg rivers and lakes) changing it from liquid to water vapour (gas)
transpiration (output)
water released from plants into the air. forms evapotranspiration when combined with evaporation
condensation (input/output)
water vapour in the air cools, reaching the dew point, and changes into liquid water which leads to cloud formation
TRANSFER: surface run off
Water flowing over the Earth’s surface (overland flow) – when ground is waterlogged or impermeable.
TRANSFER: infiltration
Downward movement of water into soil – affected by soil type, vegetation, land use, etc
TRANSFER: percolation
Downward movement of water through rocks underground – important for replenishing
groundwater stores.
TRANSFER through flow
Horizontal movement of water through soil to return to a river, can be accelerated by
plant roots or animal activity.