lesson 17- antarctica Flashcards
what is the lowest temperature recorded on earth/ in antarctica
-89*C
winds are up to ___km/h
300
how does latitude affect climate in antarctica
areas close to the equator are hotter as the sun is directly overhead during the day, the further away you get from the equator, the lower the angle that the sun is in the sky, so it gives less heat.
how does altitude affect climate in antarctica
higher=colder
falls 1*C for every 100m in height
-antarctica is 2300m above sea level-highest continent
how does the distance from the sea affect climate in antarctica
land warms and cools quicker than the sea
-places further inland are warmer in summer but colder in winter
-it is cooler near the coast in summer
how does wind direction affect climate in antarctica
areas in antarctica are sheltered from the wind, e.g. areas near the transantarctic mountains
how does albedo affect climate in antarctica
= the darkness of the surface
-there are many light surfaces such as snow covered areas. They reflect the heat and are much colder than dark surfaces, which absorb
what ocean surrounds antarctica
southern
how big is antarctica
14 million km^2
-5th largest continent
what is the physical geography of antarctica
-high, flat plateau
-highest point is Mount Vinson-4892
-dark from april to august
-low precipitation levels
-high winds
what is precipitation like in antarctica
70mm at south pole and 400mm at coast
what is fishing and whaling like in antarctica
large scale fishing exploitation
-destruction of habitat due to machinery, accidental killing
what is scientific research like in antarctica
40 permanent bases
26 airports
coastal- disrupts penguins
plane landings limited to interior