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 (C)</p> Signup and view all the answers

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

<p>Monsoon Winds (A)</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 (B)</p> Signup and view all the answers

What type of wind is the Brickfielder in Australia?

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

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

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

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

<p>Jet Streams (C)</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 (D)</p> Signup and view all the answers

What drives global air circulation?

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

How are pressure belts represented on maps?

<p>Isobars (A)</p> Signup and view all the answers

Where is the Intertropical Convergence Zone (ITCZ) located?

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

What type of air characterizes the Equatorial Low Pressure Zone?

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

Where is the Subtropical High Pressure Zone typically found?

<p>Between 20-35 N and S (A)</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 (D)</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 (D)</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 (C)</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 (C)</p> Signup and view all the answers

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

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

How are air masses classified based on their source region?

<p>By latitude and underlying surface characteristics (B)</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. (C)</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 (C)</p> Signup and view all the answers

What drives global air circulation according to the text?

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

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

<p>Warm, wet air (B)</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 (D)</p> Signup and view all the answers

How are pressure belts typically represented on maps?

<p>Isobars (C)</p> Signup and view all the answers

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

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

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

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

What is the primary mechanism that drives global air circulation?

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

What characterizes the Subtropical High Pressure Zone?

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

What does the Equatorial Low Pressure Zone result from?

<p>Intense solar heating and consistent daylight (C)</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 (A)</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 (B)</p> Signup and view all the answers

What characterizes the Equatorial Low Pressure Zone?

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

Where is the Subtropical High Pressure Zone typically located?

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

How are pressure belts represented on maps?

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

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

<p>Changes in solar intensity between hemispheres (D)</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 (A)</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 (D)</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 (D)</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 (C)</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 (D)</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 (D)</p> Signup and view all the answers

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

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

How are Subpolar Low Pressure Zones characterized?

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

What differentiates a Föhn Wind from a Monsoon Wind?

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

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

<p>Geostrophic Wind (A)</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 (D)</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 (B)</p> Signup and view all the answers

How do air masses significantly impact weather patterns?

<p>By forming fronts where they converge (D)</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 (D)</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 (A)</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 (B)</p> Signup and view all the answers

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

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

What is a unique characteristic of Monsoon Winds?

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

How are air masses classified?

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

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

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

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

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

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