geography

chapter1) global hazards

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  • Created by: joslynm
  • Created on: 18-03-16 09:11
context hazard
global threat due to environmental factors(i.e climate change)
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geophysical hazard
a hazard formed by tectonic/geological processes (earthquakes, volcanoes and tsunamis)
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hazard
a percieved natural event that has the potential to threaten life and property.
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hydro-meteorological hazard
a hazard formed by hydrological(floods) and atmospheric (storms and droughts) processes.
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vulnerability
a high risk combined with an inability of individuals and communities to cope
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disaster
a ahazard becoming reality in an event that causes deaths and damage to goods/property and the environment.
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risk
the probability of a hazard event occuring and creating loss of llves and livelihoods
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albedo
how much solar radiation a surface reflects
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climate change
any long term trend/shift in climate(average weather over 30 years) detected by sustained shift in the average value for any climatic element (e.g rainfall, drought,storminess)
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enhanced greenhouse effect
occurs when the levels of greeenhouse gases in the atmosphere increase due to human activity
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fosasil fuels
energy sources, rich in carbon, and which realise co2 when burnt (e.g coal)
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global warming
a recently measured rise in the average surface temperature of the planet
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greenhouse effect
the warming of the earth's atmosphere due to the trapping of heat that would otherwise be radiated back into space-it enables the survival of life on Earth.
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tipping point
(a gameshow) jk. its the point at which a system switches from one point to another.
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feedback mechanism
where the output of a system acts to amplify(positive) or reduce(negative) furtther output(e.g melting of the arctic permafrost leads to the release of trapped methane which leads to further global warming)
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Other cards in this set

Card 2

Front

a hazard formed by tectonic/geological processes (earthquakes, volcanoes and tsunamis)

Back

geophysical hazard

Card 3

Front

a percieved natural event that has the potential to threaten life and property.

Back

Preview of the back of card 3

Card 4

Front

a hazard formed by hydrological(floods) and atmospheric (storms and droughts) processes.

Back

Preview of the back of card 4

Card 5

Front

a high risk combined with an inability of individuals and communities to cope

Back

Preview of the back of card 5
View more cards

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