Weather Flashcards
0
Q
Maritime
A
Moist moisture
1
Q
Air Mass
A
- a large body of air that takes on the characteristics of the area over which it forms.
- formed when air stays over an area for a long period.
2
Q
Continental
A
Dry moisture
3
Q
Polar
A
Cold temperature
4
Q
Tropic
A
Warm temperature
5
Q
4 major cold air masses
A
- the continental polar
- The artic
- The maritime polar(over the Atlantic)
- The maritime polar(over the pacific
6
Q
4 major warm air masses
A
- The maritime tropical (Atlantic)
- The maritime tropical (gulf)
- The maritime tropical (pacific)
- The continental tropical
7
Q
Air mass movement
A
- as air mass moves, it begins to change
- this is call a Air Mass Modification
- helps predict weather
8
Q
Front
A
- The boundary between two air masses when they collide.
- the arrival of a front indicates a change in weather
9
Q
Types of fronts
A
- cold
- warm
- occluded
- stationary
10
Q
Cold front
A
- Forms when a cold air mass meets and displaces a warm air mass.
- because cool air is denser, it moves under the warm air, forcing it up quickly.
11
Q
Warm front
A
- occurs when warm air meets and overrides as a cold mass
- The less dense warm air moves over the cold air and gradually replaces it
12
Q
Stationary front
A
- Formed when a warm air mass and a cold air mass meet and neither moves.
- Tend to occur only when there is little difference in the temperature of air masses
- The weather produced is similar to a warm front
13
Q
Occluded front
A
- forms when a fast moving cold air mass overtakes a slow warm front
- The warm air is forced up as the 2 cold air masses collide
- Lead to cool temperatures and large amount of precipitation
14
Q
*Weather in the a Atmosphere
A
Water exists in the atmosphere as a solid, liquid or gas
- Solid: snow, sleet, hail
- Liquid: clouds, rain
- Gas: water vapor