A
The lowest layer of the atmosphere where all weather occurs and temperatures decrease as altitude increases.
Troposphere
is the force exerted by the weight of air on Earth's surface
Air pressure
What is a barometer?
instrument is used to measure air pressure
_______________ is a large body of air with uniform temperature and moisture content.
An air mass is a large body of air with uniform temperature and moisture content.
The third layer of the atmosphere, extending from 50 to 85 km. It is the coldest layer, where temperatures decrease with altitude, and it protects Earth from meteoroids by burning them up.
Mesosphere
How many energy from sun is absorbed for atmosphere.
About 20% of the Sun's energy
What aspects should be taken into account to classify air masses?
Air masses are classified based on their temperature and humidity.
_____________is a fast-moving current of air in the upper atmosphere that affects weather patterns.
A jet stream is a fast-moving current of air in the upper atmosphere that affects weather patterns.
What is the difference between isobars and isotherms?
Isobars are lines on a weather map that connect areas of equal pressure, while isotherms connect areas of equal temperature.
What is altitude and how does it affect the air pressure?
Altitude is the height above sea level. As altitude increases, air pressure decreases because there is less air above pressing down.
Moist air masses that form over oceans.
Name of the air masses
Maritime
What aspects should be taken into account to classify a front?
A front is classified based on the temperature differences and the movement of air masses.
mention 1 difference between cyclones and anticyclones
A cyclone has low pressure at its center, while an anticyclone has high pressure.
Winds in a cyclone move counterclockwise (in the Northern Hemisphere), while they move clockwise in an anticyclone.
Cyclones often bring stormy weather, while anticyclones are associated with clear skies.
write the atmosphere composition with the percentage
78% Nitrogen
21% Oxygen
1% Argon, Carbon Dioxide, and other gases
What information can be found on a weather map?
Weather maps show temperature, air pressure, precipitation, wind speed, and the location of weather fronts.
2 examples of technology used for gathering weather data
Satellites
Radar systems
Weather balloons
Computer models
When cold and warm air masses meet, but neither can move the other. This non-moving front
Where the warm and cool air meet, water vapor in the warm air condenses into rain, snow, fog, or clouds.
may bring many days of clouds and precipitation.
Stationary
A warm air mass gets trapped between two cold air masses.
The cooler air is denser and moves under the warm air, causing it to rise. When the two cold air masses meet, they mix together.
The warm air mass is prevented from reaching the ground, and its temperature drops.
Occluded
when a fast-moving warm air mass overtakes a slower-moving cold air mass.
may be light rain or snow, or scattered clouds may form.
fronts often move slowly, so there could be several days of rain and clouds.
warm front
forms when a cold air mass meets a warm air mass.
bring sudden and dangerous weather like heavy rains, strong winds, thunderstorms, and even tornadoes.
Once the front passes, the weather usually cools down, and the skies become clear.
cold font