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AirPollution/JetStr

Air Pollution

QuestionAnswer
What is the jet stream? Jet streams are like rivers of wind high above in the atmosphere. These slim strips of strong winds have a huge influence on climate, as they can push air masses around and affect weather patterns.
Where is the jet stream located? In the upper troposphere
What influences the velocity (speed) of the jet stream? Temperature influences the velocity of the jet stream: the greater the difference in air temperature, the faster the jet stream.
What do jet streams have to do with cold and warm air? Jets air streams usually separate colder and warmer air.
What can happen with warmer jet streams? When the jets streams are warmer, their ups and downs become more extreme, bringing different types of weather to areas that are not accustomed to climate variations.
How can jet streams impact weather? Jet streams generally push air masses around, moving weather systems to new areas and even causing them to stall if they have moved too far away.
How do jet streams influence air travel? Airplane pilots use the jet stream to travel from west to east, because it makes the flight faster to travel with the jet stream. They would want to avoid the jet stream travailing east to west because they would be going against the jet stream.
What is the greenhouse effect? Certain gases in the atmosphere absorb and re-radiate thermal energy. Think of it as gases that trap heat and keep that heat within the atmosphere.
What are greenhouse gases? Most common greenhouse gases are water vapor and carbon dioxide, but also include, but not limited to, ozone, methane, nitrous oxide.
How is ozone produced? when sunlight reacts with vehicle exhaust and oxygen in the air
Why is ozone important in the stratosphere? It protects us from ultra violet radiation (u.v. rays) from the sun
What causes ozone depletion? chlorofluorocarbons (CFC's) - coming from coolants in refrigerators to air conditioning. They are now BANNED.
What are examples of natural sources of air pollution? volcanic eruptions, wildfires, dust storms
What are examples of human caused air pollution? burning of fossil fuels (coal, oil, gas), vehicle exhaust, factory
What is air quality? it is a measure of the pollutants in the air that is used to express how clean or polluted the air is.
How do we determine the air quality? measuring the level of pollutants in the air like ozone and particulates.
What is air pollution? the contamination of the atmosphere by pollutants (gas or particles)
What would happen if greenhouse gases were to increase? If green house gases increased, the flow of heat out would decrease and the temperature would rise
Why is the greenhouse effect important? Keeps our atmosphere warm
What are some examples of gas pollution? carbon monoxide, sulfur dioxide, nitrogen oxide, and ground-level ozone
What are some examples of particle pollution? ash from smoke, dust, pollen, salt
What is the major cause of particle air pollution in the city? Vehicle exhaust
What is smog? air pollution caused by ground-level ozone and vehicle exhaust (reacts with sunlight)
What is acid precipitation? precipitation that contains acid from air pollution
What are some effects of acid precipitaiton? soil and water become acidic, which can harm the plant and animal life
What is the air quality index? a number used to describe the air quality of a location. The numbers range from 0 (good) to 300 (bad).
List the impact of air pollution caused by humans and natural sources. - can cause serious health problems for us - increase in global temperatures - ozone depletion - melting of polar ice - changes in weather and climate
Created by: kallayj
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