water cycle Flashcards

1
Q

name processes involved in water transfers

A
  • freezing
  • melting
  • condensation
  • evaporation
  • evapotranspiration
  • sublimation
  • deposition
  • infiltration
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2
Q

evaporation

A

solar radiation hits the surface of water or land and causes water to turn from liquid state to a gas

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3
Q

condensation

A

the air cools and excess water in the air will be converted from a gas to a liquid, the particles condense onto tiny particles of dust, smoke, salt etc

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4
Q

cryospheric processes

A

processes that affect the total mass of ice at any scale from local patches of frozen ground to global ice amounts

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5
Q

drainage basin

A

area of land drained by a river snd it’s tributaries

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6
Q

evapotranspiration

A

total output of water from the drainage basin directly back into the atmosphere

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7
Q

groundwater flow

A

slow movement of water through deep underlying rocks

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8
Q

infiltration

A

downward movement of water from the surface into the soil

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9
Q

latent heat

A

heat taken from surroundings to give particle bonds energy and surroundings cool down

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10
Q

fusion

A

when a solid becomes a liquid or vise versa

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11
Q

vaporisation

A

when a liquid becomes a gas or vice versa

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12
Q

sublimation

A

when a solid becomes a gas or vice versa

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13
Q

transpiration

A

where water is transported from the roots of a plant to its leaves and then lost through pores on the leafs surface

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14
Q

factors affecting evaporation

A
  • amount of solar energy
  • amount of water available
  • humidity of air (the closer the air is to saturation, the slower it will happen)
  • temperature of air (warm air can hold more water vapour)
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15
Q

driving force of cloud formation is..

A

the global atmospheric circulation model

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16
Q

cloud formation near the equator/in the tropics

A
  • high rates of evaporation
  • warm moist air rise, cools and condenses to form clouds and heavy rainfall in a low pressure zone called ITCZ (inter-tropical convergence zone)
17
Q

cloud formation in mid latitudes

A
  • clouds mostly formed due to convergence of warm air from tropics and cold air from the arctic
  • the boundary of the two air masses (polar front) results in rising air and cloud formation
  • strong winds (jet stream) drive these unstable weather systems across the mid latitudes
18
Q

condensation and latent heat

A

condensation gives out latent heat to surrounding areas so is a warming process

19
Q

evaporation and latent heat

A

evaporation absorbs latent heat from the surrounding area so is a cooling process

20
Q

terrestrial water

A

water on the land

  • surface water
  • groundwater
  • soil water
  • biological water
21
Q

surface water

A

free flowing water of rivers as well as the water of lakes and ponds

22
Q

soil water

A

held together with air in the unsaturated upper weathered layers of the Earth

23
Q

ice sheets

A

mass of glacial land ice extending more than 50,000km2

24
Q

ice caps

A

thick layers of ice on land that are smaller than 50,000km2

25
Q

sea ice

A

forms when the water in oceans is cooled to temperatures below freezing