4B Test Corrections: (r) Global Patterns of Weather Maps

Front

What type of pressure system is usually associated with stormy, lousy weather?

Back

Low pressure systems are typically associated with stormy and unsettled weather.

Front

What is the global pattern of atmospheric movement caused by the rotation of Earth?

Back

Jet stream is the global pattern of atmospheric movement caused by the rotation of Earth.

Front

What type of air mass is cool and humid and forms over the North Pacific Ocean?

Back

Maritime Polar air mass is cool and humid and forms over the North Pacific Ocean.

Front

How do air masses generally move across the United States?

Back

The prevailing westerlies move air masses from west to east across the United States but may be deflected by the jet stream.

Front

How do jet streams influence local weather?

Back

Jet streams carry weather systems, causing local weather to change as new systems move in and prior systems move away.

Front

What is a high pressure system typically associated with?

Back

High pressure systems are typically associated with clear skies and calm weather.

Front

Define 'air mass'.

Back

An air mass is a large body of air that has uniform temperature and humidity characteristics.

Front

What are the four types of air masses?

Back

The four types of air masses are Maritime Tropical, Maritime Polar, Continental Tropical, and Continental Polar.

Front

What is the role of the jet stream in weather patterns?

Back

The jet stream influences the movement of weather systems and can affect temperature and precipitation patterns.

Front

What is a cold front?

Back

A cold front is the leading edge of a cooler mass of air that replaces a warmer mass of air.