Chapter 28 section 2 Flashcards
Jet steams
narrow band of powerful, fast-moving, high-altitude air embedded in the global wind belts
Coriolis effect
The effect of rotation on the motion of any object or fluid.
Air Mass
a large volume of air that has the characteristics of the area over which it forms.
Weather font.
zone along which two or more air masses interact, producing certain weather condition
How many jet streams are there in the world
4
How many pressure systems are there?
2
What is the low pressure system also known as
Low ( L )
which direction does a Low pressure system flow?
Counterclockwise
What is the result of a low pressure system.
Air rises, clouds form, and creates percipitation
What is a high pressure system also know as?
A High ( H )`
What direction does a High pressure system flow?
ClockWise
What is the result of a High pressure system?
Air flows from center, air sinks, causes it to be clear skies
What are the four weather fronts
Cold, Warm, Stationary, and Occluded
What causes a cold front?
cold air that forces warm air upward in a fast and chaotic manner.
Cumulus clouds form
What is the cold front represents by on the new or weather forcast
By blue triangle
how are warm fronts created
warm air rises gently above cold air
What is the warm from represented by on the news
By half a donut circle
How are stationary fronts formed?
When cold and warm air masses meet and neither front advances.
How are Stationary fronts represented in the weather forecast.
By Alternating semi circles and blue triangles, top and bottom
how Are Occluded Fronts formed?
By fast-moving cold front overtakes a slow warm front
Thunderstorms created
What is Occluded fronts represented on the weather forecast?
By Purple triangles and semi circles alternating on top.
