hazardous earth - heat redistribution Flashcards
latitude, air pressure, ocean currents
why is the equator hotter
the equator gets more energy from the sun as the sun’s rays have a smaller area to heat so the radiation (heat) is moe intense
why are areas further away from the equator colder
moving away from the equator (increasing latitude), the area that has to be heated by the sun is increased which means that radiation is dispersed over a bigger ares and reduces the amount of energy transfer
what is difference in heat caused by
it is caused by the curvature of the earth
where are low latitudes and what is the climate
they are found around and near the equator (0 degrees)
low latitudes are warmer
where are high latitudes and what is the climate
they are found around and near the poles (90 degrees)
high latitudes are colder
what are the two ways heat is distributed
-> air pressure caused by pressure difference
-> ocean currents
describe low air pressure
low air pressure aka depression is cloudy and rainy
1 - the sun makes the ground heat up
2 - the ground heats the air
3 - the hot air rises
4 - the hot air cools down
5 - when the air cools down the water vapour condenses and forms clouds
6 - gravity wins and eventually rain falls
Low - Light –> air being Lifted
this happens around the equator
describe high air pressure
high air pressure aka anticyclone is sunny and dry
1 - cold air descends and warms up
2 - clouds/water vapour evaporates
3 - sunny and dry climate
High - Heavy –> air coming down
this happens at around 30 degrees N/S
when does wind happen
when there’s a pressure difference
what are ocean currents
the movement of water
where do warm and cold currents travel
warm currents travel FROM THE EQUATOR TOWARDS THE POLES
cold currents travel BACK TO THE EQUATOR
how can your location in relation to the ocean affect your climate
oceans can have a large impact on climate as water can hold heat for a long time which heats up the climate making the area warm (this is if the current is warm)
if the current is cold, the water will cool the climate as the ocean temperature cools the air
surface ocean currents
they are driven by the movement of wind across the top of the water
deep ocean currents
they are driven by water sinking and rising because of temperature changes
