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ES Regents Review Packet
Page 25 Topic 7 Meteorology “Beast Mode”
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Nitrogen & Oxygen (page 1 of ESRT) See Table Below “pauses” 100%
Layer Characteristic Troposphere All weather occurs here Stratosphere Ozone Mesosphere Coldest layer Thermosphere Hottest layer
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Wet bulb depression is 4°C Dewpoint is 10°C Dewpoint is -17°C
Page 25 Wet bulb depression is 4°C Dewpoint is 10°C Dewpoint is -17°C Relative Humidity is 86% Warm air Rising air, expands & cools, then it reaches dewpoint and clouds will form (condensation) Weight if the atmosphere
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Pressure differences due to the unequal heating of Earth’s surface
Page 25 Pressure differences due to the unequal heating of Earth’s surface Isobars are very close together Winds blow from Hi to Lo pressure
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LICC- HOC Page 25 Lousy skies, stormy weather, winds blow CCW & IN
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LICC- HOC Page 25 Happy sunny skies, fair weather, winds blow CW & OUT
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Page 25 Top View Review Ground View
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Air is less or more dense
Characteristic Low Pressure High Pressure Warm or Cold Air is less or more dense Air rising or sinking Clouds or no clouds Warmer Cooler Less dense More dense Sinking Rising Clouds No clouds Page 25
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Isobars are very close together Winds blow from Hi to Lo pressure
Page 25 WEST TO EAST Isobars are very close together Winds blow from Hi to Lo pressure
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Pressure and Wind What instrument is used to measure wind Speed?
Page25 What instrument is used to measure wind Speed? Anemometer 10
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Weather vane OR Wind Sock
Page 25 Weather vane OR Wind Sock Sling Psychrometer
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Temperature & Humidity- i.e. maritime Tropical (mT)- warm & wet
Page 25 Barometer Temperature & Humidity- i.e. maritime Tropical (mT)- warm & wet
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Types of Air Masses Page 26 Moist Warm Gulf of Mexico mT cT Dry
Humidity Temp Source Region Moist Warm Gulf of Mexico mT cT Dry Central Mexico Warm mP Moist Cold North Atlantic Dry Cold cP Central Canada
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What type of air mass would form over each area? Please label. cA mP
cP cT mT mT mT Page 26
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Between 2 different air masses
FRONTS a boundary Between 2 different air masses Page 35
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Use ESRT page 13 to label Diagram
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While drawing a front The Rule: triangles and bumps
always point in the direction the front is moving Page 26
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Cold Front- occurs when heavy cold air displaces lighter warm air, pushing it upward. Precipitation occurs ON the cold front 27. Page 26
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Cold Fronts Class Zone Animation #1 Page 26
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Warm Front- occurs when warm air replaces cold air by sliding over it. Precipitation occurs AHEAD of a warm front. 28. Front Page 26
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Warm Fronts Page 36
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Station Models Pressure 1013.8mb Cloud cover- overcast or 100%
Page 26 Pressure mb Cloud cover- overcast or 100% Wind direction- from the Northeast Wind Speed- 20knots Temp- 76°F Dwpt- 55°F Yes its raining
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Construct a Station Model
Wind direction- SW wind speed- 35knots Pressure mb cloud cover- Sunny Temperature- 70°F Dewpoint- 50°F 36. No, low humidity Page 26
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100% humidity, precipitation highly likely Go indoors or in a car
Store 2 weeks worth of food & water, board up the windows, know your evacuation routes and shelter, prepare a storm kit (medical supplies, batteries, etc... Same as 29; during run to shleter to storm cellar Higher ground or evacuate Page 26
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3 2 4 4 3 2 1 2 1 4 3 2 Page 27 & 28
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Temp & Dwpt close together or overcast __________
A, D, B, C 1001.2mb, mb 28°C Temp & Dwpt close together or overcast __________ Page 29
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warm air rises b/c it is less dense than cold air
50°F, 44°F, SE, 10knots, 100% Colder & drier warm air rises b/c it is less dense than cold air NorthEast or East Page 29
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Page 29 Sling Psychrometer 69% 18°C
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Draw frontal boundary between B & C
Page 30 Draw 60°F .25°F/mile Draw frontal boundary between B & C Higher angle of insolation
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Wind Direction: From the SW
Page 30 Station Model Temperature: 43°F Cloud Cover: 75% Wind Direction: From the SW Precipitation: .06 inches Current weather: Smog
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Station Model Dewpoint: 40°F Air pressure: 1014.6mb
Page 30 Station Model Dewpoint: 40°F Air pressure: mb Wind Speed: 15 knots Visibility: ¾ of a mile
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Page 30 Hurricane CCW & IN mT South Westerlies When it makes landfall or reaches cold water b/c it loses its energy source
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Label cP & mT Draw cold & warm front Barometer Draw wind around the Low West to East X Where it is raining Increase Page 31
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Page 31 Cold Front Condensation cP- Central Canada mT- Gulf of Mexico
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Stormy weather; CCW & out
Page 31 High Pressure Clear Skies; CW & out B Low Pressure Stormy weather; CCW & out
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