property of lear siegler. pressure & winds property of lear siegler

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Property of Lear Siegler

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Page 1: Property of Lear Siegler. PRESSURE & WINDS Property of Lear Siegler

Property of Lear Siegler

Page 2: Property of Lear Siegler. PRESSURE & WINDS Property of Lear Siegler

PRESSURE & WINDS

Property of Lear Siegler

Page 3: Property of Lear Siegler. PRESSURE & WINDS Property of Lear Siegler

ELO # 1

ACTION: Identify the standard mean sea level in inches of mercury or millibars.

CONDITION: Given pertinent information about mean sea level.

STANDARD: IAW FM 1-230 para 5-3

Page 4: Property of Lear Siegler. PRESSURE & WINDS Property of Lear Siegler

ATMOSPHERIC PRESSUREForce exerted by the weight of a column of

air per unit area

Property of Lear Siegler

Page 5: Property of Lear Siegler. PRESSURE & WINDS Property of Lear Siegler

ATMOSPHERIC PRESSUREForce exerted by the weight of a column of

air per unit area

Property of Lear Siegler

Each brick = 1 lb Total Wt 8 lbs

Scale

Page 6: Property of Lear Siegler. PRESSURE & WINDS Property of Lear Siegler

ATMOSPHERIC PRESSUREForce exerted by the weight of a column of

air per unit area

Property of Lear Siegler

Total Wt 1 lb

Page 7: Property of Lear Siegler. PRESSURE & WINDS Property of Lear Siegler

Property of Lear Siegler

Page 8: Property of Lear Siegler. PRESSURE & WINDS Property of Lear Siegler

Property of Lear Siegler

Mercurial Barometer

Vacuum in tube, mostof air removed.

Atmospheric Weight

Normal atmosphericpressure at

sea level supports a column of mercury 29.92 inches high

Page 9: Property of Lear Siegler. PRESSURE & WINDS Property of Lear Siegler

Property of Lear Siegler

Aneroid Barometer

Page 10: Property of Lear Siegler. PRESSURE & WINDS Property of Lear Siegler

29.92 “hg

1013.2 hP / mb

Standard Day Pressure

Property of Lear Siegler

Page 11: Property of Lear Siegler. PRESSURE & WINDS Property of Lear Siegler

24.92 “Hg

29.92 “Hg1013.2 mb

843.9 mb

New OrleansDenver1013.2 mb SLP =

Station Pressure

SLP : Station pressure corrected for elevation and temperature

SLP = 1013.2 mb

Station Pressure

Property of Lear Siegler

Page 12: Property of Lear Siegler. PRESSURE & WINDS Property of Lear Siegler

ELO # 2

ACTION: Identify the definition of an isobar.

CONDITION: From a list select the correct definition.

STANDARD: IAW FM 1-230 para 5-5

Page 13: Property of Lear Siegler. PRESSURE & WINDS Property of Lear Siegler

ISOBARS

LINES CONNECTING POINTS OF EQUAL PRESSURE CORRECTED TO SEA LEVEL

SPACED 4 MB APART

1004 mb

1004 mb

Page 14: Property of Lear Siegler. PRESSURE & WINDS Property of Lear Siegler

PURPOSE OF ISOBARS

TO SHOW AREAS OF HIGH AND LOW PRESSURE

TO SHOW WIND DIRECTION

TO SHOW RELATIVE WIND SPEEDS

Property of Lear Siegler

Page 15: Property of Lear Siegler. PRESSURE & WINDS Property of Lear Siegler

ELO # 3

ACTION: Identify pressure patterns.

CONDITION: From a chart, identify the correct mean sea level pressure.

STANDARD: IAW FM 1-230 para 5-5

Page 16: Property of Lear Siegler. PRESSURE & WINDS Property of Lear Siegler

FM 1-230

Figure 5-6

Page 17: Property of Lear Siegler. PRESSURE & WINDS Property of Lear Siegler

1024

1020

Property of Lear Siegler

HIGH: (anticyclone) areas where pressureis higher than all surrounding pressure.

H

Page 18: Property of Lear Siegler. PRESSURE & WINDS Property of Lear Siegler

Property of Lear Siegler

RIDGE – an elongated area of high pressure

Page 19: Property of Lear Siegler. PRESSURE & WINDS Property of Lear Siegler

Property of Lear Siegler

992

996

1000

LOWS: (cyclones) areas where pressureis lower than all surrounding pressure.

Page 20: Property of Lear Siegler. PRESSURE & WINDS Property of Lear Siegler

Property of Lear Siegler

Trough – an elongated area of low pressure

Page 21: Property of Lear Siegler. PRESSURE & WINDS Property of Lear Siegler

Property of Lear Siegler

Page 22: Property of Lear Siegler. PRESSURE & WINDS Property of Lear Siegler

ELO # 4

ACTION: Identify the definition of pressure gradient force.

CONDITION: From a list select the correct definition.

STANDARD: IAW FM 1-230 para 5-6

Page 23: Property of Lear Siegler. PRESSURE & WINDS Property of Lear Siegler

PRESSURE GRADIENT FORCE

The force exerted by the change in pressure per unit of horizontal distance. (The rate at which the air will accelerate depends on the rate at which pressure changes with distance.)

This force causes the wind to blow.

Page 24: Property of Lear Siegler. PRESSURE & WINDS Property of Lear Siegler

ELO # 5

ACTION: Identify the characteristics of the pressure gradient force.

CONDITION: Given a list, select the characteristics of the pressure gradient force.

STANDARD: IAW FM 1-230

Page 25: Property of Lear Siegler. PRESSURE & WINDS Property of Lear Siegler

PRESSURE GRADIENT

ACTS FROM HIGH TO LOW PRESSURE

ACTS PERPENDICULAR TO ISOBARS

Property of Lear Siegler

Page 26: Property of Lear Siegler. PRESSURE & WINDS Property of Lear Siegler

H

Property of Lear Siegler

L

Page 27: Property of Lear Siegler. PRESSURE & WINDS Property of Lear Siegler

PRESSURE GRADIENT

ISOBARS CLOSELY SPACED

WEAK OR FLAT PRESSURE GRADIENT

CALM OR LIGHT WINDS

ISOBARS WIDELY SPACED

STRONG OR STEEP PRESSURE GRADIENT MODERATE TO STRONG WINDS

Property of Lear Siegler

Page 28: Property of Lear Siegler. PRESSURE & WINDS Property of Lear Siegler

Property of Lear SieglerBreak

Page 29: Property of Lear Siegler. PRESSURE & WINDS Property of Lear Siegler
Page 30: Property of Lear Siegler. PRESSURE & WINDS Property of Lear Siegler
Page 31: Property of Lear Siegler. PRESSURE & WINDS Property of Lear Siegler
Page 32: Property of Lear Siegler. PRESSURE & WINDS Property of Lear Siegler
Page 33: Property of Lear Siegler. PRESSURE & WINDS Property of Lear Siegler
Page 34: Property of Lear Siegler. PRESSURE & WINDS Property of Lear Siegler

ELO # 6

ACTION: Identify the characteristics of Coriolis force.

CONDITION: From a list select the statement that correctly describes the effects of Coriolis force.

STANDARD: IAW FM 1-230 para 6-7

Page 35: Property of Lear Siegler. PRESSURE & WINDS Property of Lear Siegler

Coriolis ForceA FORCE DEVELOPED BY THE UNEQUAL SPEED OF ROTATION OF THE EARTH’S SURFACE.

Property of Lear Siegler

Page 36: Property of Lear Siegler. PRESSURE & WINDS Property of Lear Siegler

Characteristics

Page 37: Property of Lear Siegler. PRESSURE & WINDS Property of Lear Siegler
Page 38: Property of Lear Siegler. PRESSURE & WINDS Property of Lear Siegler

Property of Lear Siegler

Page 39: Property of Lear Siegler. PRESSURE & WINDS Property of Lear Siegler

CORIOLIS CHARACTERISTICS

ACTS PERPENDICULAR TO WIND

PROPORTIONAL TO WIND SPEED

STRONGEST AT POLES ZERO ATEQUATOR

Property of Lear SieglerBreak

Page 40: Property of Lear Siegler. PRESSURE & WINDS Property of Lear Siegler

ELO # 7

ACTION: Identify the definition of wind flow around highs and lows in the Northern Hemisphere.

CONDITION: From a list identify the orientation of wind flow in relation to the isobars.

STANDARD: IAW FM 1-230

Page 41: Property of Lear Siegler. PRESSURE & WINDS Property of Lear Siegler

H

L

Property of Lear Siegler

Page 42: Property of Lear Siegler. PRESSURE & WINDS Property of Lear Siegler

Pressure gradient

H

L

Property of Lear Siegler

Page 43: Property of Lear Siegler. PRESSURE & WINDS Property of Lear Siegler

Pressure gradient

Wind

Property of Lear Siegler

Page 44: Property of Lear Siegler. PRESSURE & WINDS Property of Lear Siegler

Pressure gradient

Wind

Coriolis

Property of Lear Siegler

Page 45: Property of Lear Siegler. PRESSURE & WINDS Property of Lear Siegler

Pressure gradient

Wind

Coriolis

Property of Lear Siegler

Page 46: Property of Lear Siegler. PRESSURE & WINDS Property of Lear Siegler

Pressure gradient

Wind

Coriolis

Property of Lear Siegler

Page 47: Property of Lear Siegler. PRESSURE & WINDS Property of Lear Siegler

Pressure gradient

Wind

Coriolis

Property of Lear Siegler

Page 48: Property of Lear Siegler. PRESSURE & WINDS Property of Lear Siegler

Pressure gradient

Wind

Coriolis

Property of Lear Siegler

Page 49: Property of Lear Siegler. PRESSURE & WINDS Property of Lear Siegler
Page 50: Property of Lear Siegler. PRESSURE & WINDS Property of Lear Siegler

GRADIENT WIND

H

L

Property of Lear Siegler

ABOVE 2000’

Page 51: Property of Lear Siegler. PRESSURE & WINDS Property of Lear Siegler

H

Property of Lear Siegler

Page 52: Property of Lear Siegler. PRESSURE & WINDS Property of Lear Siegler

H

Property of Lear Siegler

Page 53: Property of Lear Siegler. PRESSURE & WINDS Property of Lear Siegler

L

Property of Lear Siegler

Page 54: Property of Lear Siegler. PRESSURE & WINDS Property of Lear Siegler

L

Property of Lear Siegler

Page 55: Property of Lear Siegler. PRESSURE & WINDS Property of Lear Siegler

Pressure gradient

Wind

Coriolis

Property of Lear Siegler Break

Page 56: Property of Lear Siegler. PRESSURE & WINDS Property of Lear Siegler

Pressure gradient

Wind

Coriolis

Friction

Property of Lear Siegler

Page 57: Property of Lear Siegler. PRESSURE & WINDS Property of Lear Siegler

Pressure gradient

Wind

Coriolis

Friction

Property of Lear Siegler

Page 58: Property of Lear Siegler. PRESSURE & WINDS Property of Lear Siegler

Pressure gradient

Wind

Coriolis

Friction

Property of Lear Siegler

Page 59: Property of Lear Siegler. PRESSURE & WINDS Property of Lear Siegler

Pressure gradient

Wind

Coriolis

Friction

Property of Lear Siegler

Page 60: Property of Lear Siegler. PRESSURE & WINDS Property of Lear Siegler

SURFACE WIND

H

L

Property of Lear Siegler

Page 61: Property of Lear Siegler. PRESSURE & WINDS Property of Lear Siegler
Page 62: Property of Lear Siegler. PRESSURE & WINDS Property of Lear Siegler

H L

GRADIENT WINDS / WINDS ALOFT

Property of Lear Siegler

Page 63: Property of Lear Siegler. PRESSURE & WINDS Property of Lear Siegler

H L

SURFACE WINDS

Property of Lear Siegler

Page 64: Property of Lear Siegler. PRESSURE & WINDS Property of Lear Siegler
Page 65: Property of Lear Siegler. PRESSURE & WINDS Property of Lear Siegler
Page 66: Property of Lear Siegler. PRESSURE & WINDS Property of Lear Siegler

360

090

180

270

060

Property of Lear Siegler

Page 67: Property of Lear Siegler. PRESSURE & WINDS Property of Lear Siegler

360

090

180

270

240

Property of Lear Siegler

Page 68: Property of Lear Siegler. PRESSURE & WINDS Property of Lear Siegler

360

090

180

270

WINDS ALOFT 180Property of Lear Siegler

Page 69: Property of Lear Siegler. PRESSURE & WINDS Property of Lear Siegler

360

090

180

270

SURFACE WIND 150Property of Lear Siegler

Page 70: Property of Lear Siegler. PRESSURE & WINDS Property of Lear Siegler

360

090

180

270

WINDS ALOFT 360Property of Lear Siegler

Page 71: Property of Lear Siegler. PRESSURE & WINDS Property of Lear Siegler

360

090

180

270

SURFACE WINDS 330Property of Lear Siegler

Page 72: Property of Lear Siegler. PRESSURE & WINDS Property of Lear Siegler

?????????

IF THE GRADIENT WIND AT 2500´ ABOVE THE SURFACE IS FROM 270° WHAT RUNWAY SHOULD YOU LAND ON?

N

Property of Lear Siegler

Page 73: Property of Lear Siegler. PRESSURE & WINDS Property of Lear Siegler

2500

N

SURFACE

Property of Lear Siegler

Page 74: Property of Lear Siegler. PRESSURE & WINDS Property of Lear Siegler

Property of Lear Siegler

Page 75: Property of Lear Siegler. PRESSURE & WINDS Property of Lear Siegler

ELO # 8

ACTION: Identify the characteristics of high and low pressure systems.

CONDITION: From a list identify the characteristics of a high or low pressure system.

STANDARD: IAW FM 1-230

Page 76: Property of Lear Siegler. PRESSURE & WINDS Property of Lear Siegler

HIGH PRESSURE SYSTEMS(ANTICYCLONE)GENERAL WEATHER

• SINKING OF AIR NEAR CENTER

• DIVERGENCE

• FAVORABLE WEATHER

• LIGHT TO MODERATE WINDS

• POSSIBLE EARLY MORNING FOG

• LAYERS OF HAZE

• CENTER OF HIGH – CLEAR SKIES

Property of Lear Siegler

Page 77: Property of Lear Siegler. PRESSURE & WINDS Property of Lear Siegler

LOW PRESSURE SYSTEM(CYCLONE)

GENERAL WEATHER

• LIFTING NEAR CENTER OF LOW

• CONVERGENCE

• MODERATE TO STRONG WINDS

• TURBULENCE

• CUMULIFORM CLOUDS

• RAIN SHOWERS AND/OR HAIL

• FRONTAL SYSTEMSProperty of Lear Siegler

Page 78: Property of Lear Siegler. PRESSURE & WINDS Property of Lear Siegler

ELO # 9

ACTION: Using Buys Ballot Law, determine if an aircraft is flying toward higher or lower pressure.

CONDITION: Given aircraft heading, wind direction, or ground track, determine if the aircraft is flying toward high or low pressure.

STANDARD: IAW FM 1-230

Page 79: Property of Lear Siegler. PRESSURE & WINDS Property of Lear Siegler

BUYS BALLOT’S LAW

WITH YOUR BACK TO THE WIND, LOW PRESSURE WILL TO YOUR LEFT

H

L

Property of Lear Siegler

Page 80: Property of Lear Siegler. PRESSURE & WINDS Property of Lear Siegler

H L

WINDS ALOFT

Property of Lear Siegler

Page 81: Property of Lear Siegler. PRESSURE & WINDS Property of Lear Siegler

TRUE ALT

TRUE ALT

IND ALTIND ALT

Property of Lear Siegler

Ind True

H L

L H

Page 82: Property of Lear Siegler. PRESSURE & WINDS Property of Lear Siegler

FM 1-230 Referencesfor today…

• Pressure 5-1 thru 5-7

• Atmospheric Circulation 6-6 thru 6-8

Page 83: Property of Lear Siegler. PRESSURE & WINDS Property of Lear Siegler

FM 1-230 Referencesfor tomorrow…

• Moisture Chapter 4

• Stability Chapter 7

• Clouds Chapter 8

Page 84: Property of Lear Siegler. PRESSURE & WINDS Property of Lear Siegler
Page 85: Property of Lear Siegler. PRESSURE & WINDS Property of Lear Siegler

STOPSTOP

Abandon hope all ye who enter hereAbandon hope all ye who enter here

You are entering the hidden slide ZoneYou are entering the hidden slide Zone

Page 86: Property of Lear Siegler. PRESSURE & WINDS Property of Lear Siegler

Back

Page 87: Property of Lear Siegler. PRESSURE & WINDS Property of Lear Siegler

back

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