Understanding Santa Ana Winds
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Questions and Answers

What geographical features are responsible for the formation of Santa Ana winds?

  • The Great Basin and the Mojave Desert
  • The Rocky Mountains and the Sierra Nevada (correct)
  • The Great Plains and the Atlantic Ocean
  • The Pacific Ocean and the Colorado River

Why do the Santa Ana winds gain speed as they move toward California?

  • As they flow from high to low pressure (correct)
  • Due to the flat terrain in California
  • Because of high humidity in California
  • As they flow from low to high pressure

What causes the air associated with Santa Ana winds to warm up as it descends downslope?

  • Compression due to downslope movement (correct)
  • Adiabatic cooling near mountains
  • Convection caused by humidity
  • Expansion due to low pressure

Why does the humidity of the air decrease significantly during Santa Ana wind events?

<p>As a result of compression during descent (D)</p> Signup and view all the answers

Which other region experiences similar weather events to the Santa Ana winds?

<p>U.S. Rockies as chinooks (D)</p> Signup and view all the answers

What is a characteristic of the air associated with Santa Ana winds in terms of humidity?

<p>Low humidity below 20% (B)</p> Signup and view all the answers

What is one of the reasons why the Santa Ana winds are named as such?

<p>Based on the Santa Ana Mountains and Canyon in Southern California (D)</p> Signup and view all the answers

What causes the Santa Ana winds to gain speed as they move towards California?

<p>The compression of air as it descends downslope (B)</p> Signup and view all the answers

Why are the Santa Ana winds often considered swift?

<p>As they move from high to low pressure areas (A)</p> Signup and view all the answers

What causes the humidity values associated with the Santa Ana winds to plummet?

<p>The compression of air as it descends downslope (A)</p> Signup and view all the answers

What distinguishes the Santa Ana winds from other types of winds like chinooks and foehn winds?

<p>Their swift nature and dryness (C)</p> Signup and view all the answers

What is one result of the airflow caused by neighboring differences in pressure during a Santa Ana event?

<p>Wind speeds upwards of 30 mph and gusts of more than twice this speed (B)</p> Signup and view all the answers

Flashcards

Santa Ana winds formation: Geography?

Rocky Mountains and Sierra Nevada.

Santa Ana Winds: Speed Increase?

Air flows from high to low pressure.

Santa Ana winds: Warming cause?

Compression as air descends.

Santa Ana winds: Humidity decrease?

Compression during descent.

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Similar winds?

U.S. Rockies as chinooks.

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Santa Ana winds: Humidity?

Low humidity, below 20%.

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Santa Ana: Origin of the name?

Named after the Santa Ana Mountains and Canyon.

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Santa Ana winds: Speed Increase?

Compression as it descends downslope.

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Santa Ana winds swift?

They move from high to low pressure areas.

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Santa Ana: Plummeting humidity?

Compression of air as it descends downslope.

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Santa Ana winds: Unique?

Swiftness and dryness.

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Santa Ana: Airflow result?

Wind speeds upwards of 30 mph and gusts of more than twice this speed.

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