Earth and Environmental Flashcard 2.2

Front

What is a low pressure system?

Back

A low pressure system is a region where the atmospheric pressure is lower than that of surrounding areas, often associated with cloudy weather and precipitation.

Front

What is a sea breeze?

Back

A sea breeze is a local wind that occurs during the day when cooler air from the sea moves inland to replace the rising warm air over the land.

Front

What happens to air when it cools over land?

Back

When air cools over land, it becomes denser and sinks, leading to high pressure.

Front

How do we characterize an air mass that forms over the equator?

Back

An air mass that forms over the equator is characterized as warm due to the intense solar heating in that region.

Front

What is a dry air mass?

Back

A dry air mass is one that forms over land and has low moisture content, often leading to clear skies.

Front

What is the difference between high and low pressure systems?

Back

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

Front

What is the role of temperature in air mass formation?

Back

Temperature plays a crucial role in air mass formation; warm air masses are typically formed over warm surfaces, while cold air masses form over cooler surfaces.

Front

What is the significance of air pressure in weather systems?

Back

Air pressure is significant in weather systems as it influences wind patterns, precipitation, and overall weather conditions.

Front

What is a land breeze?

Back

A land breeze is a local wind that occurs at night when cooler air from the land moves towards the warmer sea.

Front

How does humidity affect air masses?

Back

Humidity affects air masses by determining their moisture content; humid air masses can lead to precipitation, while dry air masses typically result in clear weather.