Pressure and Wind
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Pressure and Wind. ©Mark Place, 2009-2010 www.LearnEarthScience.com. What instrument is used to measure:. wind speed. air pressure. anemometer. barometer. [ORIGIN from Greek anemos ‘wind’]. [ORIGIN from Greek baros ‘weight’]. How are winds named?. The direction from which

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Pressure and Wind

©Mark Place, 2009-2010

www.LearnEarthScience.com


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What instrument is used to measure:

wind speed

air pressure

anemometer

barometer

[ORIGIN from Greek anemos ‘wind’]

[ORIGIN from Greek baros ‘weight’]


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How are winds named?

The direction

from which

they come


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What causes wind?

diferences

in

pressure


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Which pressure gradient would

result in greater wind velocity?


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Convert the following

measurements using the chart

on page 13 of the

ESRTs.

29.73

997

30.18

994


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Wind blows from areas of

to areas of

high

pressure

low

pressure


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Draw the relationship between

air pressure and air density.


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In a high pressure area,

air will (rise, sink)

because the air is

(less, more) dense.

This is because the air is

(cold, warm)

and (rises, sinks).

Therefore, clouds CANNOT form.


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In a low pressure area,

air will (rise, sink)

because the air is

(less, more) dense.

This is because the air is

(cold, warm)

and (rises, sinks).

Therefore, clouds are

LIKELY to form.


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Correctly draw the direction of wind flow

around both a high and a low pressure area

in the NORTHERN HEMISPHERE.


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warm

cold

rising

sinking

clouds

no clouds

clockwise

counter clockwise

toward

away


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On the diagrams below, label which one represents a

land breeze and which represents a sea breeze.

Correctly label on each diagram where the

high and low pressure areas would be found.


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On the diagrams below, label which one represents a

land breeze and which represents a sea breeze.

Correctly label on each diagram where the

high and low pressure areas would be found.

Sea Breeze (daytime)

H

L


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On the diagrams below, label which one represents a

land breeze and which represents a sea breeze.

Correctly label on each diagram where the

high and low pressure areas would be found.

Land Breeze (night time)

L

H


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What’s the relationship

between wind and waves?

direct

(the stronger the wind,

the bigger the waves)


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Using the chart on page 14, state the prevailing

wind direction for each latitude below:

southwest

northwest

northeast

northeast




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