2.11 Upper Air Systems

Open Ended

Think about it...

The latitudes 30 degrees North and South of the equator are known as the Horse latitudes. Where do you think this name comes from?

Multiple Choice

Which of the following weather patterns is most likely to occur

near the equator in the three-cell circulation model

• heavy snowfall

• frequent hurricanes

• prolonged periods of drought

Multiple Choice

How does the subtropical high-pressure belt contribute to the formation and persistence of many of the world's largest deserts, such as the Sahara?

• The high pressure causes the air to rise, leading to cooling and the formation of clouds that block the sun's rays, resulting in arid conditions.

• The high pressure causes air to sink, leading to warming and the evaporation of moisture, resulting in dry conditions.

• The high pressure causes the air to stagnate, leading to high levels of pollution and reduced air quality that contribute to desertification.

Multiple Choice

What is the path taken by westerlies?

• from the subpolar low-pressure belt to the subtropical high-pressure belt

• from the subtropical high-pressure belt to the subpolar low-pressure belt

• from the equatorial low-pressure belt to the polar high-pressure belt

Multiple Choice

During the Northern Hemisphere winter, the subtropical high-pressure belt shifts

toward the equator. What effect does this have on the trade winds?

• They strengthen and blow more consistently

• They weaken and become more variable

• They are not affected by the shifting of pressure belts

Multiple Choice

Which of the following statements correctly describes pressure belts?

• Pressure belts have no effect on global weather patterns or climate.

• Pressure belts are always stationary and do not move or shift over time.

• 
  Pressure belts are regions of Earth's atmosphere where air pressure is relatively high or low.

Match

Match the pressure belts with the corresponding wind systems.

• subtropical high-pressure belt

• polar high-pressure belt

• subpolar low-pressure belt

• equatorial low-pressure belt

Trade winds

Polar easterlies

Westerlies

Doldrums

• Trade winds

• Polar easterlies

• Westerlies

• Doldrums

Categorize

Options (6)

high precipitation

high humidity

cloudy skies

low precipitation

low humidity

clear skies

Classify the weather phenomena according to whether they are associated with a high- or a low-pressure system.

low-pressure system

high-pressure system

Open Ended

How does the Bermuda High affect the temperature and precipitation patterns along the eastern coast of the United States?

_{You can start your response with:}

The Bermuda High affects the temperature and precipitation patterns . . .

Multiple Choice

Exit Ticket...

In the US, which way do jet streams flow?

• East to West

• North to South

• West to East

• South to North