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Which elements of weather can you pick out in the next slide? In 5 seconds or less….
Weather is simply the state of the atmosphere That means that the weather has everything to do with the atmosphere….and the atmosphere has everything to do with weather..
So to understand weather, we must understand the atmosphere
What is the atmosphere?
The atmosphere is the layer(s) of gases that surrounds the earth. It is like an invisible blanket that wraps around the planet
Another way to describe the atmosphere is like
AN OCEAN OF AIR
If the atmosphere is like an ocean of air. Where are we in that ocean? At the bottom…
Some gases in the atmosphere are: Nitrogen Oxygen Argon Carbon Dioxide
What do these gases make?… AIR
These gases are floating around in the atmosphere around us…
What keeps those molecules in the atmosphere? Why dont they fly off into space????
If gravity is holding all of this sea of air in place, where will the atmosphere be the most dense?
Imagine that all of the atmosphere is pushing down So, we will feel the most weight of the atmosphere closer to the earths……
Temperature is how hot or cold the atmosphere is
What determines the temperature?
The temperature of a place is affected by the amount of the suns rays (solar radiation) that reaches the earths surface
REACHES THE EARTHS SURFACE
The earth is not warmed by the direct heating of the atmosphere by the suns rays
So we know that the atmosphere prevents some solar radiation (suns rays) from reaching the earths surface
So what would happen if the suns rays had to travel through more atmosphere?
What about if the suns rays were pointed at an angle?
Did you know the earth is tilted?
Look at the higher latitudes.What happens to the suns rays?
Look how much of the atmosphere the rays have to go through at the higher latitude
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