CH 1: Global Air Circulation
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Questions and Answers

What is the characteristic of high pressure cells in the Southern Hemisphere?

  • Anti-clockwise sinking air (correct)
  • Upward swirling air
  • Clockwise rising air
  • Counterclockwise swirling air

    • At what latitudes does the Polar High Pressure Zone occur?

  • 0° N and S
  • 60°-70° N and S
  • 30° N and S
  • 90° N and S (correct)

    • What force causes wind to deflect right in the Northern Hemisphere and left in the Southern Hemisphere?

  • Coriolis Force (correct)
  • Pressure Gradient Force
  • Centrifugal Force
  • Frictional Force

    • What is the main responsibility of the Hadley Cell in global air circulation?

    <p>Bringing tropical rains and trade winds</p> Signup and view all the answers

    Which type of wind is characterized by seasonal reversals in wind direction?

    <p>Monsoon Winds</p> Signup and view all the answers

    What is a potential impact of Föhn Winds like Chinook or Berg winds?

    <p>Rapid warming and drying conditions</p> Signup and view all the answers

    What type of wind is the Brickfielder in Australia?

    <p>East wind</p> Signup and view all the answers

    What type of climate is driven by the Polar Cell in global air circulation?

    <p>Polar climates</p> Signup and view all the answers

    What feature characterizes strong, high-altitude winds that significantly influence weather patterns?

    <p>Jet Streams</p> Signup and view all the answers

    What is the purpose of global air circulation?

    <p>To keep energy surpluses in regions near the Equator</p> Signup and view all the answers

    What drives global air circulation?

    <p>Unequal heating of Earth's atmosphere</p> Signup and view all the answers

    How are pressure belts represented on maps?

    <p>Isobars</p> Signup and view all the answers

    Where is the Intertropical Convergence Zone (ITCZ) located?

    <p>Between 10 N and 10 S</p> Signup and view all the answers

    What type of air characterizes the Equatorial Low Pressure Zone?

    <p>Warm and wet air</p> Signup and view all the answers

    Where is the Subtropical High Pressure Zone typically found?

    <p>Between 20-35 N and S</p> Signup and view all the answers

    What causes the hot, dry air in the Subtropical High Pressure Zone?

    <p>Descending air that heats upon compression</p> Signup and view all the answers

    What are the characteristic weather conditions associated with the Subpolar Low Pressure Zone?

    <p>Cold and wet conditions with abundant precipitation</p> Signup and view all the answers

    What is the primary influence of differential heating of land and water on high and low-pressure cell formation?

    <p>Significant impact on local weather patterns through pressure variations</p> Signup and view all the answers

    What distinguishes the Ferrel Cell from the Hadley Cell in global air circulation?

    <p>Latitude range of operation</p> Signup and view all the answers

    Which force results in winds flowing parallel to isobars at high altitudes?

    <p>Geostrophic Wind</p> Signup and view all the answers

    How are air masses classified based on their source region?

    <p>By latitude and underlying surface characteristics</p> Signup and view all the answers

    What distinguishes Monsoon Winds from Föhn Winds?

    <p>Föhn winds are dry, warm downslope winds, whereas Monsoon winds are characterized by wet seasons.</p> Signup and view all the answers

    What is a significant impact of Jet Streams on weather patterns?

    <p>Influencing storm tracks and temperature distributions</p> Signup and view all the answers

    What drives global air circulation according to the text?

    <p>The rotation of the Earth</p> Signup and view all the answers

    What is the primary characteristic of the Equatorial Low Pressure Zone?

    <p>Warm, wet air</p> Signup and view all the answers

    What geographical region experiences hot, dry air due to descending air that compresses and heats up?

    <p>Subtropical regions</p> Signup and view all the answers

    How are pressure belts typically represented on maps?

    <p>Isobars</p> Signup and view all the answers

    What is the role of pressure belts in determining weather and climate?

    <p>Determining prevailing wind patterns</p> Signup and view all the answers

    Where is the Intertropical Convergence Zone (ITCZ) typically located?

    <p>At the equator</p> Signup and view all the answers

    What is the primary mechanism that drives global air circulation?

    <p>Unequal heating of Earth's atmosphere</p> Signup and view all the answers

    What characterizes the Subtropical High Pressure Zone?

    <p>Heating of air upon compression</p> Signup and view all the answers

    What does the Equatorial Low Pressure Zone result from?

    <p>Intense solar heating and consistent daylight</p> Signup and view all the answers

    What is the primary purpose of global air circulation?

    <p>To move thermal energy and water across regions with energy surpluses to those with deficits</p> Signup and view all the answers

    What is the primary role of global air circulation?

    <p>To move thermal energy and air from poles to equator</p> Signup and view all the answers

    What characterizes the Equatorial Low Pressure Zone?

    <p>Warm, wet air due to solar heating</p> Signup and view all the answers

    Where is the Subtropical High Pressure Zone typically located?

    <p>Between 35°-40° N and S</p> Signup and view all the answers

    How are pressure belts represented on maps?

    <p>Using isobars to represent lines of equal atmospheric pressure</p> Signup and view all the answers

    What causes the formation of the Intertropical Convergence Zone (ITCZ)?

    <p>Changes in solar intensity between hemispheres</p> Signup and view all the answers

    What is a key characteristic of the Subtropical High Pressure Zone?

    <p>Produces hot, dry air over deserts</p> Signup and view all the answers

    In global air circulation, what drives the movement of thermal energy and air across the Earth?

    <p>Unequal heating of Earth's atmosphere</p> Signup and view all the answers

    What leads to the creation of a Subtropical High Pressure Zone?

    <p>'Subsidence' of descending air mass compressing and heating up</p> Signup and view all the answers

    What is one significant impact of seasonal shifts in the Intertropical Convergence Zone (ITCZ)?

    <p>'Monsoon rains' in South Asia and Australia</p> Signup and view all the answers

    Which latitudes are known for experiencing an Equatorial Low Pressure Zone?

    <p>Between 10° N and 10° S</p> Signup and view all the answers

    What characteristic of high pressure cells in the Southern Hemisphere differs from low-pressure cells?

    <p>Clockwise direction of air</p> Signup and view all the answers

    What is the primary factor shaping global and local weather patterns?

    <p>Solar radiation</p> Signup and view all the answers

    How are Subpolar Low Pressure Zones characterized?

    <p>Warm and humid conditions</p> Signup and view all the answers

    What differentiates a Föhn Wind from a Monsoon Wind?

    <p>Occurs on the leeward side of mountains</p> Signup and view all the answers

    Which phenomenon results in winds flowing parallel to isobars at high altitudes?

    <p>Geostrophic Wind</p> Signup and view all the answers

    What is the primary impact of the Ferrel Cell on global weather patterns?

    <p>Transitional zone affecting temperate weather</p> Signup and view all the answers

    What is the primary role of Jet Streams in influencing weather patterns?

    <p>Influencing storm tracks and temperature distributions</p> Signup and view all the answers

    How do air masses significantly impact weather patterns?

    <p>By forming fronts where they converge</p> Signup and view all the answers

    What characteristic differentiates the Polar High Pressure Zone from the Subpolar Low Pressure Zone?

    <p>Dense, sinking air</p> Signup and view all the answers

    Which factor significantly influences local weather patterns through the formation of high and low-pressure cells?

    <p>Differential heating of land and water</p> Signup and view all the answers

    What is the primary characteristic of the Polar High Pressure Zone?

    <p>Cold, dry conditions with limited precipitation</p> Signup and view all the answers

    Which force causes wind to deflect left in the Southern Hemisphere?

    <p>Coriolis Force</p> Signup and view all the answers

    What is a unique characteristic of Monsoon Winds?

    <p>Characterized by seasonal reversals in wind direction</p> Signup and view all the answers

    What is the main impact of Jet Streams on weather patterns?

    <p>Influencing storm tracks and temperature distributions</p> Signup and view all the answers

    How are air masses classified?

    <p>By their source region's latitude and underlying surface characteristics</p> Signup and view all the answers

    What causes wind to deflect right in the Northern Hemisphere and left in the Southern Hemisphere?

    <p>Coriolis Force</p> Signup and view all the answers

    What is a key characteristic of Föhn Winds like the Chinook or Berg winds?

    <p>They lead to rapid warming and drying conditions</p> Signup and view all the answers

    At what latitudes does the Ferrel Cell operate in global air circulation?

    <p>30° and 60°</p> Signup and view all the answers

    What is the primary impact of the Polar Cell on global weather patterns?

    <p>Driving polar climates</p> Signup and view all the answers

    Where are Monsoon Winds characterized by seasonal reversals in wind direction most prominently observed?

    <p>South and Southeast Asia</p> Signup and view all the answers

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