Weather Review. What is the difference between weather and climate? Weather: Atmosphere conditions...
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Transcript of Weather Review. What is the difference between weather and climate? Weather: Atmosphere conditions...
![Page 1: Weather Review. What is the difference between weather and climate? Weather: Atmosphere conditions at a given time or place Climate-Average weather conditions.](https://reader036.fdocuments.net/reader036/viewer/2022062223/55169965550346a25b8b521f/html5/thumbnails/1.jpg)
Weather Review
![Page 2: Weather Review. What is the difference between weather and climate? Weather: Atmosphere conditions at a given time or place Climate-Average weather conditions.](https://reader036.fdocuments.net/reader036/viewer/2022062223/55169965550346a25b8b521f/html5/thumbnails/2.jpg)
What is the difference between weather and climate?
• Weather: Atmosphere conditions at a given time or place
• Climate-Average weather conditions in a given region over a long period of time.
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What are the following instruments used to measure?
Thermometer-Measures TemperatureHygrometer- Measures HumidityBarometer-Measures Air PressureWind Gauge- Measures Wind SpeedRain Gauge- Measures Amount of Rain
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List and describe the major features of each atmosphere
• Thermosphere-temp rises
• Mesosphere-temp decreases
• Stratosphere- temp rises, ozone layer is found here
• Troposphere- temp decreases, where weather occurs
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Why is carbon dioxide of greatest interest to meteorologist, even though carbon dioxide is
only found in small amounts in the atmosphere
• CO2 is a greenhouse gas that absorbs energy and traps it in the atmosphere causing a rise in temperature.
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How is global warming and the greenhouse effect related?
• Greenhouse effect causes global warming- greenhouse gases trap energy causing an increase in the temp (Global Warming)
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What evidence supports the idea of global warming? What evidence disputes the idea of Global Warming?
• Support- - increase temperature out of the “normal” range
-Ice caps melting/ sea level rising-Increase of storms/increase of intensity of storms
• Dispute-Data misinterpreted-Not enough data-”Normal” earth cycles causes warming
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What is the ozone, and why is it important?
• Three oxygen's bonded together – exists in a layer in our atmosphere
• Blocks ultraviolet rays (UV rays) which causes skin cancer.
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What is the name given to the group of chemicals that cause destruction to the ozone?
• Chlorofluorocarbons CFCs
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Conduction
• Description: transfer of energy through contact
• Example: Layer of air in contact with ground being heated
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Convection
• Description: rising/sinking of air due to temp/density difference
• Example: Air rising due to heating of earth’s surface
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Radiation
• Description: all forms of energy that travel through space as waves
• Example: Energy traveling through space to earth.
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List and describe the major causes of temperature differences around the world
• Latitude-more direct sunlight at equator, less direct at poles
• Unequal heating- land heats/cools more rapidly than H2O
• Altitude- temp drops 3.5 degrees per 1000 feet in elevation
• Geographic- coastal areas experience more moderate temps.
• Albedo/Cloud Cover- Clouds, Ice/ Snow reflect energy and decrease temp.
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Why would a city near a body of water have less temperature variation than a city located in the center of a continent? Make sure to reference specific heat in
your answer
• Water takes longer to heat/cool meaning it has a high specific heat- this slow heat transfer moderates temperatures along the coast
• Land heats/cools quicker (lower specific heat) causing variable temps in the center of continents
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What is the relationship between the heating of the earth's surface and the air temperature?
• The earth's surface heats the air/ atmosphere above it
• Differently earth materials heat the air above differently – Example sand heating faster than the water at the
beach, creating land and sea breeze
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What causes global winds? How do you name them and what makes them curve?
• Convection causes air to rise and the rotation of the earth causes them to curve
• The apparent deflection due to the rotation of the earth is known as Coriolis effect
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Land breeze
• Description: wind blows from land to sea• Example: Cooling of land at night causes
sinking air (high pressure). The water stays warmer longer leading to rising air (low pressure)
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Sea Breeze
• Description: Wind Blows from sea to the land• Heating of land causes rising air (low
pressure)- wind blows in from the sea to fill the void
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Air Masses
• Continental Polar-cP-Dry, Cold- Forms Over Canada
• Continental Tropical-cT-Dry, Warm, Forms over Mexico, South west U.S.
• Maritime Tropical-mT, Humid, Warm, Forms over Gulf of Mexico
• Maritime Polar, MP, Humid, Cold, Forms over North Atlantic, North Pacific
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Types of Fronts• Cold- Cold air moving into area of warmer air-Cooler
temperature, heavy precipitation, Thunderstorms• Warm- Warm air moving into area of cooler air-
warmer temperature, moderate precipitation
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Type of pressure cells
• High- Clear Skies• Low- Change in temp, Precipitation, Clouds
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How are high and low pressure systems related to convection?
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Which direction does weather move across the United States and why?
• West to East due to jet streams and westerlies
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How could a mountain range impact weather? Large bodies of water
• Mountains force air up which can lead to cloud formation on precipitation
• Body of water moderate temperature.
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Describe how tornados form.
• Winds traveling at different speeds in the atmosphere cause horizontal rotation within a thunderstorm
• Updrafts tilt the spinning column vertical creating the tornado.
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What are some ways to stay safe from lightning?
• Stay indoors away from windows.• Stay inside for 30 min after last thunder clap• If outside seek shelter-> squat down on balls
of feet
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How do scientist study and track major weather events like hurricanes and tornadoes
• Study Radar and predicts wind direction and wind speed.
• Use computer forecast models
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How do thunderstorms commonly form? At what time of day do they form and why?
• Warm moist air is forced upward quickly where H20 Vapor cools and condenses and forms clouds- updraft and downdraft move precipitation and charged particles through the clouds causing lightning
• Afternoon- need enough heat for air to rise.
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Locations
• A) Clear skies- High pressure is sinking air which prevents condensation/cloud formation
• B) Cooler temp- cold front moving counter clockwise.
• B)Storms -cold from forces air up to cool,H2O vapor condenses forming clouds/storms
• C) Warm Temp- Warm front moving counterclockwise low.
• C) Moderate Rain- warm air rises up over colder air, water vapor
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Be able to read and interpret climate graphs. What is the temp in Rio de Janeiro in November?
24 C