Circulation in Earth's Atmosphere

Front

What is the Coriolis effect?

Back

The Coriolis effect is the deflection of moving objects, such as winds, caused by the rotation of the Earth. In the northern hemisphere, winds are deflected to the right, while in the southern hemisphere, they are deflected to the left.

Front

What are prevailing westerlies?

Back

Prevailing westerlies are winds that blow from the west to the east in the mid-latitudes, responsible for moving much of the weather across the United States.

Front

Why does warm air rise?

Back

Warm air rises because it is less dense than cold air.

Front

Where are the doldrums located?

Back

The doldrums are located around the equator and are characterized by very little wind.

Front

How do winds in the northern hemisphere differ from those in the southern hemisphere?

Back

Winds in the northern hemisphere are deflected to the right, while winds in the southern hemisphere are deflected to the left.

Front

What is the role of high pressure in wind movement?

Back

High pressure areas are regions where air is descending, leading to clear skies and calm weather, while winds flow from high to low pressure areas.

Front

What are trade winds?

Back

Trade winds are steady winds that blow from east to west in the tropics, important for sailing and weather patterns.

Front

What is the significance of jet streams?

Back

Jet streams are fast flowing air currents in the upper atmosphere that influence weather patterns and can affect the movement of storms.

Front

What is the difference between high pressure and low pressure?

Back

High pressure is associated with descending air and clear skies, while low pressure is associated with rising air and stormy weather.

Front

What causes the seasons on Earth?

Back

The tilt of the Earth's axis and its orbit around the sun cause the seasons, affecting the angle and intensity of sunlight received.