Input
When matter or energy is added to the system eg solar energy
Output
When matter or energy leaves the system
Store
Where matter or energy builds up
Flows
Where matter or energy moves from one store to the other
Boundaries
The limits of the system
Percolation
Water seeping down through soil into the water table
Base flow
Groundwater flow that feeds into rivers through riverbanks and river beds
Interflow
Water flowing downhill through permeable rock above the water table
Channel flow
the water flowing into a river or stream itself - also known as river discharge
Evapotranspiration
The process of evaporation and transpiration together
Cubic metres per second
Shortened to cumecs- unit of measurement
River discharge
Volume of water that flows in a river per second
Biomass
Renewable organic material that comes from plants and animals
Vegetation storage
Water that’s been taken up by plants. It’s all the water contained in plants at any one time
Surface storage
Includes puddles ( depression storage ) , ponds and lakes
Groundwater storage
Water stored in ground, either in soil ( soil moisture ) or in rocks. The water table is the top surface of the zone of saturation - the zone of soil or rock where all the pores in the soil or rock are full of water. Porous rocks that hold water are called aquifers
Channel storage
water held in a river or stream channel
River discharge
Volume of water that flows in a river per second
Carbon budget
Difference between the inputs and outputs of carbon into a subsystem and outputs of carbon from it
Cryosphere
Includes all the parts of the earth system where it’s cold enough for water to freeze eg glacial landscapes
Lithosphere
The lithosphere is the outermost part of the earth. Includes crust and upper mantle
Biosphere
Part of earths system where all living things are found - plants,animals,insects,bacteria
Hydrosphere
Includes all water on earth. Liquid form or solid form or gas form. Can be saline or fresh
Atmosphere
layer of gas between earths surface and space held in place by gravity
Ablation
The removal of surface snow or ice by sublimation,melting or evaporation