Weather & Climate Flashcards
What is climate?
Climate is the average cause or condition of the weather or a place usually over a period of years determined by temperature, wind velocity, and precipitation.
What is Atmosphere?
Atmosphere is the layer of air that surrounds the earth
What types of gases are in the atmosphere? Name all five.
Nitrogen, oxygen, argon, carbon dioxide, and hydrogen.
What gas is the most abundant in the atmosphere?
Nitrogen
What are the five layers of the atmosphere? In order from earth to space
Troposphere Stratosphere Mesosphere Thermosphere Exosphere
What happens as altitude increases?
Pressure decreases
What is the atmospheric pressure in sea level?
1000 millibars, or 1 atmosphere
Why is the atmosphere divided into 5 layers?
The atmosphere is not uniform, and its properties change with altitude.
What atmosphere is closest to the earth?
Troposphere
What is the height of the troposphere?
0 to 10 km
What are the characteristics of the troposphere? Name all 3
All weather occurs in that atmosphere, more than half the air is in the layer, and the temperature drops as the altitude increases.
What is the height of the stratosphere?
10-50 km
For the stratosphere, as the altitude increases, the temperature…
The temperature increases
Characteristics of Stratosphere, name the two
Protective ozone layer is above of this atmosphere, and rivers of air called jet streams can be found at the base of this layer
What is OZONE?
Ozone is a gaseous layer in the upper stratosphere that protects the Earth from harmful ultraviolet radiation. At lower levels, ozone becomes a major pollutant.
What is the symbol for Ozone?
O3
What is SMOG?
Pollution formed by the interaction of pollutants and sunlight (photochemical smog), usually restricting visibility, and occasionally hazardous to health.
What is the height for mesosphere?
50-90km
For the mesosphere, as the altitude increases, the temperature…
Decreases
Characteristics of the mesosphere, name 3
Coldest layer of the atmosphere, Meteors burn in this layer, radio waves reflected
Hieght of the thermosphere
90-300km
For the thermosphere, as the altitude increases, the temperature…
Increases
4 Characteristics of the themosphere
Hottest layer, auroras occur in this layer, ionosphere is found here which is the component that creates auroras
How do CFCs deplete the ozone layer?
It gets mixed with the lower atmosphere and keeps rising up, past the ozone layer, and UV light reacts with it. It creates O3 and chlorine destroys ozone molecules.