Keywords G Flashcards
canal
human made waterway
Watershed or Drainage Basin,
an area drained by a river and its tributaries
reliable surface Runoff
surface runoff of water that generally can be counted on as a stable source of water from year to year
percolates
filter gradually through a porous surface or substance
cone of depression
the water table level around a well has a sort of cone shape
sinkholes
it is a depression or hole in the ground caused by some from of collapse of the surface layer
Water Footprint
This is what shows the extent of water use in relation to consumption by people.
Virtual Water
The hidden flow of water in food or other commodities that are traded from one place to another.
Confined Aquifers
An aquifer that is bounded above and below by confining beds.
Salt Water Intrusion
The movement of saline into fresh water aquifers.
Oligotrophic
An organism that can live in an environment that offers very low levels of nutrients.
coastal wetlands
land across the coast line which is covered with saltwater all or part of the year
hydroponic
growing plant life using nutrient rich water instead of soil
flood irragation
an irrigation technique where they essentially flood the whole field before allowing the water to absorb.
desalination
removal of salt from ocean water
floodplain
areas near rivers, oceans, ponds, and lakes that are periodically flooded at different points over time
gray water
water that already has been used domestically, commercially and industrially
fish ladder
a structure that allows migrating fish passage over or around an obstacle on a river
aqueduct
used to transport water from a source to places where the water was needed
Dam
a barrier constructed to hold back water and raise its level
Dam
a barrier constructed to hold back water and raise its level
Reservoir
a large natural or artificial lake used as a source of water supply
mesotrophic
having a moderate amount of dissolved nutrients
eutrophic
a body of water rich in nutrients and so supporting a dense plant population, the decomposition of which kills animal life by depriving it of oxygen
xeriscaping
landscape in a style which requires little or no irrigation
land subsidence
a gradual settling or sudden sinking of the earths surface owing to subsurface movement of earths materials
groundwater overdraft
occurs where the average annual amount of groundwater extraction exceeds the long term average annual supply of water to the basin
coastal floodplains
an area along any coast that has been inundated during times of flooding, but is otherwise above water besides standing water such as a pond or a marsh
Watershed/Drainage Basin
An area of land that separates water into rivers or basins
Reliable Surface Runoff
Water flowing off of land and into surface water, which provides a stable source of water
Percolate
Moving and filtering liquids through spongy material.
Cone of Depression
A depression in a surface with an inverted cone shape that develops around a well of water where water is taken from
Sinkholes
What occurs when surface ground caves into natural depressions
Surface water
All water naturally open to the atmosphere
Ex. Rivers, lakes, streams, seas, etc.
Surface Runoff
Occurs when there is more water than land can absorb. Excess water flows across the land and into nearby creeks, streams, and ponds.
Lateral Recharge
Water that moves sideways from rivers and streams into an aquifer.
Aquifier
A ridge of sand, silt, and clay that builds up along a riverbank.
Dike
A blockade used to control water flow from a river, lake, etc.
spray irrigation
pumping ground water into spray nozzles across an agricultural field
drip irrigation
water is run through pipes (with holes in them) either buried or lying slightly above the ground next to the crops
water ownership
all tidal waters were held by the crown
water conservation
the practice of using water efficiently to reduce unnecessary water usage
freshwater
safe-drinking natural water containing no salt or contaminants
zone of saturation
a portion of underground soil with water-filled gaps
hydrologic cycle
the cycle of water on Earth through the ground, atmosphere and water bodies
natural recharge aquifier
underground rock formations that hold water from rainfall or other sources
natural recharge aquifer
underground rock formations that hold water from rainfall or other sources
