The vertical distance above sea level

Instrument/tool used to measure air pressure.

The difference in pressure between regions of the Earth creates this. Can influence local weather.

The curving of global winds due to the rotation of the Earth. Creates global circulation cells and wind belts.

Located between 0 degrees (equator) to 30 degrees latitude N/S. Winds blow towards the equator from east to west, creating the global wind belt known as the trade wind.

Located between 30 degrees to 60 degrees latitude N/S. Winds blow toward the poles from west to east, creating the westerlies wind belt.

Located between 60 degrees to 90 degrees latitude N/S. Winds blow away from the poles from east to west, forming the easterlies wind belt.

Winds blowing toward the poles, west to east, between 30-60 degrees latitude N/S. Responsible for moving weather systems across the US.

Winds blowing away from the poles, east to west, between 60-90 degrees latitude N/S.

Global winds that travel in higher altitudes from east to west. There are two jet streams (polar and subtropical) in each hemisphere.

Winds created by mountains, valleys, lakes, and oceans that blow over smaller, shorter distances.

A cool wind that blows up a mountain during the day.

a wind that flows down a mountain at night.

A seasonal change in wind direction caused by differences in heating and cooling of land and water. Can travel farther distances and affect large areas.

Cool, dense air that sinks towards Earth's surface, spinning clockwise. Causes sunny, stable weather conditions.

Warm, less dense air that rises above Earth's surface, spinning counterclockwise. Cause stormy, turbulent weather.

Lines connecting points of equal atmospheric pressure.

A scientist who studies weather systems and patterns.

A large body of air that has relatively uniform temperature and humidity. They form when air sits over a region for many days.

Occurs when a cold air mass pushes a warm air mass, forcing the warm air to rise. Showers and thunderstorms can form along the edge of the front.

Occurs when a warm air mass pushes a cold air mass. Produces steady rain along and ahead of the front.

A boundary between two air masses pushing against each other, neither strong enough to move or replace the other. Mostly forms an overcast sky.

Forms when two cold air masses cover a warm air mass. Typically forms thunderstorms.

A visual display that shows several forms of weather data. Used by meterologists.

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Unit 6: 8.10 B

Atmospheric Movement

Term	Definition
altitude	The vertical distance above sea level
barometer	Instrument/tool used to measure air pressure.
global winds	The difference in pressure between regions of the Earth creates this. Can influence local weather.
coriolis effect	The curving of global winds due to the rotation of the Earth. Creates global circulation cells and wind belts.
hadley cell	Located between 0 degrees (equator) to 30 degrees latitude N/S. Winds blow towards the equator from east to west, creating the global wind belt known as the trade wind.
ferrel cell	Located between 30 degrees to 60 degrees latitude N/S. Winds blow toward the poles from west to east, creating the westerlies wind belt.
polar cell	Located between 60 degrees to 90 degrees latitude N/S. Winds blow away from the poles from east to west, forming the easterlies wind belt.
westerlies	Winds blowing toward the poles, west to east, between 30-60 degrees latitude N/S. Responsible for moving weather systems across the US.
easterlies	Winds blowing away from the poles, east to west, between 60-90 degrees latitude N/S.
jet streams	Global winds that travel in higher altitudes from east to west. There are two jet streams (polar and subtropical) in each hemisphere.
local winds	Winds created by mountains, valleys, lakes, and oceans that blow over smaller, shorter distances.
valley breeze	A cool wind that blows up a mountain during the day.
mountain breeze	a wind that flows down a mountain at night.
monsoon	A seasonal change in wind direction caused by differences in heating and cooling of land and water. Can travel farther distances and affect large areas.
high-pressure system	Cool, dense air that sinks towards Earth's surface, spinning clockwise. Causes sunny, stable weather conditions.
low-pressure system	Warm, less dense air that rises above Earth's surface, spinning counterclockwise. Cause stormy, turbulent weather.
isobars	Lines connecting points of equal atmospheric pressure.
meteorologist	A scientist who studies weather systems and patterns.
air mass	A large body of air that has relatively uniform temperature and humidity. They form when air sits over a region for many days.
cold front	Occurs when a cold air mass pushes a warm air mass, forcing the warm air to rise. Showers and thunderstorms can form along the edge of the front.
warm front	Occurs when a warm air mass pushes a cold air mass. Produces steady rain along and ahead of the front.
stationary front	A boundary between two air masses pushing against each other, neither strong enough to move or replace the other. Mostly forms an overcast sky.
occluded front	Forms when two cold air masses cover a warm air mass. Typically forms thunderstorms.
weather map	A visual display that shows several forms of weather data. Used by meterologists.

Created by: kmondragon

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