Flashcards in NATURAL HAZARDS FOR TEST Deck (18)
What is climate change?
The long term, large scale shift in the earth's weather patterns or average temperatures.
What is global warming?
The gradual increase in the overall temperature of the earth's temperatures.
What are natural causes of climate change?
Orbital changes, volcanic activity, solar output.
What are the human causes of climate change?
Fossil fuels, agriculture and deforestation.
What is mitigation?
Reducing the causes of a certain event e.g climate change.
How can we mitigate to climate change?
Alternative energy production & international policies
What is adaptation?
Responding to the changes to limit its impacts or to take advantage of the change.
How can we adapt to climate change?
Managing water supplies & changes to agriculture.
How can we plan for a natural hazard?
Drills in schools and offices, building 'storm proof' homes
How can we predict natural hazards?
Use data from radars & satellites to calculate a predicted storm path.
How can we protect against natural hazards?
Buildings on stilts to protect from flood water, reinforced concrete that can withstand storms
Where do most tropical storms form?
Near the equator, wherever the ocean is above 27.5 degrees
How are tropical storms formed?
High sea temp. of 27.5 causes warm air to rise from ocean in thermals, air cools and condenses forming towering thunderstorm clouds (as air condenses heat is released which powers the storm), several storms join together to form 1 giant one, gain more strength as it passes ocean but is released when reaches land
What are the characteristics of tropical storms?
Move at 16-24km/h, height may exceed 13km, eye in centre of storm can be between 16-48km
Is UK Weather becoming more extreme?
4 out of the 5 hottest years in the UK have occurred since 2000, highest 2 day rainfall happened in 2015, highest daily temperature happened in 2003
What happens at a constructive plate boundary?
Plates pull/move apart from each other, magma in mantle rises to fill the gap causing a volcano, can also cause an earthquake
What happens at a conservative plate boundary?
Plates move alongside each other or in opposite directions, friction and power builds up until it is suddenly released in the form of an earthquake