Water and Carbon Cycles: The water cycle Flashcards

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1
Q

Define anticyclone:

A

A system of high pressure, causing high temperatures and unreasonable high evaporation rates.

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2
Q

Define aquifer:

A

A permeable or porous rock which stores water

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3
Q

Define choke points:

A

Points in the logistics of energy and fuel that are prone to restriction.

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4
Q

Define convectional precipiation:

A

Solar radiation heats the air above the ground causing it to rise, cool and condense forming precipitation.

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5
Q

Define desalination plant:

A

The conversion of seawater to freshwater, suitable for human consumption.

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6
Q

Define desublimation:

A

The change of state of water from a gas to a solid, without being a liquid.

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7
Q

Define economic water scarcity:

A

When water resources are available but insufficient economic wealth limits access to it.

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8
Q

Define energy pathway:

A

The movement of energy from its extraction or source, through pipes, freight logistics or cabling.

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9
Q

Define energy players:

A

Key companies and individuals who own, distribute and sell energy and energy sources.

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10
Q

Define ENSO cycles

A

Naturally occurring phenomena that involves the movement of warm water in the equatorial pacific.

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11
Q

Define global hydrological cycle:

A

The continuous transfer of water between land, atmosphere and the oceans (closed system)

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12
Q

Define inorganic carbon:

A

Carbon stored in carbonated rocks.

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13
Q

Define meteorological drought:

A

When long term precipitation trends are below average

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14
Q

Define monsoon:

A

The drastic variation between wet and dry seasons for sub-tropical areas, caused by a changed prevailing wind.

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15
Q

Define percolation:

A

Water moving from the ground/soil into porous rock or rock fractures.

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16
Q

Define physical water scarcity:

A

A physical lack of available freshwater which cannot meet demand.

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17
Q

Define phytoplankton:

A

Small organisms that rely on photosynthesis to survive, so intake carbon dioxide from the atmosphere.

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18
Q

Define relief precipitation:

A

Precipitation caused when air masses are forced to rise over high land, determined by the relief of the land

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19
Q

Define river regime:

A

The pattern of river discharge over a year

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20
Q

Define saltwater encroachment:

A

The movement of saltwater into freshwater aquifers or soils.

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21
Q

Define smart irrigation:

A

Providing cops with a water supply les than optimal, to make crop resistant to water shortages.

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22
Q

Define storm hydrograph:

A

Variation of river discharge over a short period of time.

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23
Q

Define sublimation:

A

The change of state of water from solid to gas, without being a liquid.

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24
Q

Define thermohaline circulation:

A

The movement of volumes of seawater from cold deep water to warm water surface water

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25
Q

Define through flow:

A

Water moving horizontal through the soil, due to gravity

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26
Q

Define tipping point:

A

A critical threshold where any changes to a system after the threshold are irreversible.

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27
Q

Define water budget:

A

The annual balance between inputs and outputs within a system

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28
Q

Define water sharing treaty:

A

International agreements for trans boundary sources:

29
Q

Define watershed:

A

The boundary between neighbouring drainage basins.

30
Q

What is atmospheric water?

A

Water found in the atmosphere.

31
Q

What is cryospheric water?

A

The water locked up on the Earth’s surface as ice.

32
Q

What are the 4 forms of terrestrial water?

A
  • Surface water
  • Groundwater
  • Soil water
  • Biological water
33
Q

What is surface water?

A

The water of free-flowing rivers, ponds and lakes.

34
Q

What is groundwater?

A

Water that collects underground in the pore spaces of rock.

35
Q

What is biological water?

A

Water stored in biomass.

36
Q

What is soil water?

A

Water stored in soil.

37
Q

What are inputs into a system?

A

When matter/energy is added to a system

38
Q

What are outputs into a system?

A

When matter/energy leaves a system.

39
Q

What are stores in a system?

A

When matter/energy builds up in a system

40
Q

What are flows in a system?

A

Where matter/energy moves in a system.

41
Q

What are boundaries in a system?

A

Limits to a system.

42
Q

What is an open system?

A

A system that receives energy inputs and transfers outputs of matter/energy with other systems.

43
Q

What is a closed system?

A

A system where energy inputs equals energy outputs.

44
Q

What is a dynamic equilibrium in a system?

A

When energy inputs equals outputs despite changing conditions.

45
Q

What causes positive feedback?

A

When a chain of events amplifies the impacts of the original event.

46
Q

What causes negative feedback?

A

When a chain of events nullifies the impact of the original event.

47
Q

On a local scale, the water and carbon cycles are both ____ systems.

A

Open

48
Q

On a global scale, the water and carbon cycles are both ____ systems.

A

Closed

49
Q

Name the 3 types of rainfall:

A
  • Convectional
  • Relief
  • Frontal
50
Q

Explain convectional rainfall:

A

Due to the heating of the sun, warm air rises, condenses at higher altitudes and falls as rain.

51
Q

Explain relief rainfall:

A

Warm air is forced upwards by a barrier, causing it to condense at higher altitudes and fall as rain.

52
Q

Explain frontal rainfall:

A

Warm air rises over cool air when two bodies of air at different temperatures meet. As the warm air is less dense and lighter it condenses at higher altitudes and falls as rain.

53
Q

What is the main input into systems in the water cycle?

A

Precipitation

54
Q

What are the two main outputs of systems in the water cycle?

A
  • Evapotranspiration
  • Streamflow
55
Q

Explain evapotranspiration:

A
  • Both evaporation and transpiration.
  • Evaporation occurs when water is heated by the sun, causing it to become a gas and rise into the atmosphere.
  • Transpiration occurs when plants respire through their leaves and release water they absorb through their roots, which then evaporates.
56
Q

Explain streamflow:

A
  • All water that enters a drainage basin will either leave through the atmosphere or through streams that drain the basin.
57
Q

Name the 7 main flows in a system in the water cycle:

A
  • Infiltration
  • Percolation
  • Throughflow
  • Surface runoff
  • Groundwater flow
  • Streamflow
  • Stemflow
58
Q

What is infiltration?

A

The process of water moving from above the ground into soil.

59
Q

How do tree roots increase the rate of infiltration?

A

Create passages for water to flow through from the surface into the soil.

60
Q

What is surface run-off?

A

When water flows above the ground as sheetflow or in rills.

61
Q

What is groundwater flow?

A

When water moves through rocks

62
Q

What is streamflow?

A

When water moves through established channels.

63
Q

What is stemflow?

A

When the flow of water has been intercepted by plants or trees.

64
Q

What are the 5 main stores in a system?

A
  • Soil water
  • Groundwater
  • River channel
  • Interception
  • Surface storage
65
Q

What is the water table?

A

The upper level at which the pore spaces and fractures in the ground become saturated.

66
Q

Name the 5 factors that influence the water cycle on a local scale:

A
  • Deforestation
  • Storm events
  • Seasonal changes
  • Agriculture
  • Urbanisation
67
Q

Explain how deforestation impacts the water cycle on a local level:

A
  • Less interception by trees so surface run off increases.
  • Soil is no longer kept together by roots, so soil water storage decreases.
  • Fewer plants so transpiration decreases
68
Q

Explain how storm events impact the water cycle on a local level:

A
  • Large events of rainfall quickly saturate the ground to its field capacity, no more water can enter the soil increasing surface run-off.
69
Q
A