What air pressure systems are anticyclones associated with What air pressure systems are cyclones associated with Do Now What air pressure systems are anticyclones associated with Highs ID: 571149
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Slide1
19.2 – Pressure Centers and Winds - Part ISlide2
What air pressure systems are anticyclones associated with?
What air pressure systems are cyclones associated with?
Do NowSlide3
What air pressure systems are anticyclones associated with?
HighsWhat
air pressure systems are cyclones associated with
?Lows
Do NowSlide4
Generalization
Key WordsSlide5
Cyclone
Anticyclone
Vocab WordsSlide6
Pressure Centers
Cyclones are centers of low
pressure.
In
cyclones, the pressure decreases from the outer isobars toward the center.
Anticyclones are centers of high
pressure.
In
anticyclones, just the opposite is the case—the values of the isobars increase from the outside toward the center.Slide7Slide8
Cyclonic and
Anticyclonic Winds
When the pressure gradient and the Coriolis effect are applied to pressure centers in the Northern Hemisphere, winds blow counterclockwise around a low. Around a high, they blow
clockwise
In either hemisphere, friction causes a net flow of air inward around a cyclone and a net flow of air outward around an
anticyclone.Slide9
Weather and Air Pressure
Rising air is associated with cloud formation and precipitation, whereas sinking air produces clear
skies.Slide10
Weather Forecasting
Weather reports emphasize the locations and possible paths of cyclones and
anticyclones.
Low-pressure centers can produce bad weather in any
season.Slide11Slide12
Weather Forecaster
Get into your groups, you will each get a weather map
and you will need to predict the weather in whatever area you are looking at. Then you will need to present it to the class as a weatherman!Slide13
If
you are in the Northern Hemisphere and are directly west of the center of a cyclone, what most likely will be the wind direction? What will the wind direction be if you are west of an anticyclone in the Northern Hemisphere?
Group Challenge Question