Air Masses
A huge body of air that has similar temperature, humidity, and air pressure.
What is an air mass
Air masses move by the prevailing westerlies and what else?
What is the jet stream
Someone who analyzes weather data and reports about it is called
What is a meterologist
A capital H with a cirle around it means
High pressure
The layer of the atmosphere closest to the earth is called
The troposphere
How many types of air masses are there in North America.
What is 4
The boundary where air masses meet is called a
What is a front.
Name the 4 types of fronts
What is cold front, warm front, occluded front, and stationary front
A blue line with blue triangles means
What is a cold front
The ozone layer is found in what atmospheric layer.
The stratosphere
Tropical air masses have ______ air pressure.
What is low.
After a cold front passes what is the weather like?
What is cooler with clear skies.
What 2 characteristics are used to classify air masses?
What is temperature and humidity
What do isobars tell?
What is the barometric pressure in an area.
What causes the temperature to rise in the stratosphere?
What is the ozone layer
An air mass that forms over land is called.
What is a continental air mass
When 2 air masses meet and neither one can move the other it is called a
What is a stationary front
Meteors will burn out in what layer of the atmosphere?
What is the mesosphere
A circle that is totally filled in means what?
100% cloud cover
What is another name for the upper mesosphere?
An air mass that is cold and wet is called.
What is a Maritime Polar air mass.
When an air mass is affected by mountains or surface features it is called this.
What is friction
isotherms are lines joining places that have the same ___________.
What is temperature.
Meterologists are unable to predict the weather accurately a week out due to what?
what is the butterfly effect
Does the temperature increase or decrease with altitude in the Thermosphere?
What is increase