Atmospheres Flashcards
(35 cards)
Extends 8-15km above the Earth
Troposphere
Most dense part of the atmosphere
Troposphere
Almost all weather takes place here
Troposphere
Contains 99% of water vapor in the atmosphere
Troposphere
Gets colder ascending
Troposphere
Extends 50km above the Earth
Stratosphere
Contains the Ozone Layer
Stratosphere
Gets warmer ascending
Stratosphere
Why does the stratosphere get warmer ascending upward?
It lacks turbulence and updrafts.
Why do jets tend to fly in the lower stratosphere?
It lacks the turbulence and updrafts that the troposphere has.
Absorbs and scatters solar UV energy and turns it into heat.
Ozone Layer
Extends 85km above the Earth
Mesosphere
Most meteors burn up here
Mesosphere
Gets colder ascending
Mesosphere
Contains the coldest temperatures in the atmosphere
Mesosphere
The upper part contains temperatures as low as -90 degrees Celsius
Mesosphere
The air here is now too thin to breathe
Mesosphere
Extends 600km above the Earth
Thermosphere
Aurora takes place here
Thermosphere
Many satellites orbit the Earth in this part
Thermosphere
High energy X-rays and UV radiation from sun absorbed here
Thermosphere
Reaches 500 to 2000 degrees Celsius
Thermosphere
Why would the thermosphere feel cold to us?
There is very little air there, so we wouldn’t be able to feel the heat.
What does the thermosphere’s height depend on?
Energy from the sun makes it fluctuate from 500km to 10000km above the Earth.