warm-up topic: air masses & weather fronts
TRANSCRIPT
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Warm-UpTopic: Air Masses & Weather Fronts
1. What type of cloud is made mostly of ice crystals?
2. The average temperature last week was 50 F, is this an example of weather or climate?
3. What is the name for the dust particles required for water droplets to gather?
1. ¿Qué tipo de nube está compuesta principalmente de cristales de hielo?
2. La temperatura promedio la semana pasada fue 50 F, ¿es este un ejemplo de clima o clima?
3. ¿Cuál es el nombre para las partículas de polvo requeridas para que las gotitas de agua se junten?
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Weather vs. Climate
Both explain atmospheric conditions & behaviors
Difference? TIME FRAME
Ambos explican las condiciones atmosféricas y los comportamientos
¿Diferencia? PERIODO DE TIEMPO
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Weather Tiempo
“Minutes-to-months”(short term)
Ex: temperature, humidity, precipitation, cloudiness, wind, brightness, etc.
"Minutos a meses"(término corto)
Ej: temperatura, humedad, precipitación, nubosidad, viento, brillo, etc.
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Climate Clima
Average, long-term pattern(usually a particular location or time period, generally over 30+ years)
averages of precipitation, humidity, sunshine, and wind speed
Patrón promedio a largo plazo(generalmente un lugar o período de tiempo en particular, generalmente más de 30 años o más)
Promedios de precipitación, humedad, sol y velocidad del viento
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“Climate is what
you expect,
weather is what
you get!”
“El clima es lo que esperamos,
el tiempo es lo
que hay!”
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Which is it?
1. You’re packing for a weekend on the coast…Do you look up weather or climate?
2. You’re moving to Texas...Do you look up weather or climate?
1. Estás empacando un fin de semana en la costa ... ¿Buscas clima o clima?
2. Te estás mudando a Texas ... ¿Buscas clima o clima?
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I. Air MassesA. Immense body of air that is
characterized by similar temperatures and amounts of moisture at any given altitude.
These cause weather.
A. Inmenso cuerpo de aire que se caracteriza por temperaturas y cantidades de humedad similares a cualquier altitud dada.
Estos causan clima.
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Air Masses Masas de aire
B. Classified based on temperature AND humidity.
a. Temperature:POLAR = coldTROPICAL = warm
b. Humidity: Maritime = oceanContinental = land
B. Clasificado según la temperatura y la humedad.
a. Temperatura:POLAR = fríoTROPICAL = cálido
b. Humedad:Marítimo = océanoContinental = tierra
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How do you write AIR MASSES
C. Always put humidity first! (lowercase) then temperature (UPPERCASE)
ex. Maritime Polar = mPContinental Polar = c_____Maritime Tropical = _____ TContinental Tropical = ____ ____
C. ¡Siempre ponga la humedad primero! (minúscula) luego temperatura (MAYÚSCULAS)
ex. Marítimo Polar = mPContinental Polar = c_____Marítimo Tropical = _____ TContinental Tropical = ____ ____
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How do you write AIR MASSES
Always put humidity first! (lowercase) then temperature (UPPERCASE)
Ex. Maritime Polar = mP
Continental Polar = cPMaritime Tropical = mT
Continental Tropical = cT
Ex. Marítimo Polar = mPContinental Polar = cPMarítimo Tropical = mTContinental Tropical = cT
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Classify each of the circles with what type of air mass you would find in each one.
A.
B. C.
D. E.
F.
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Classify each of the circles with what type of air mass you would find in each one.
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What type of air mass is cold and dry?
Continental Polar
As it moves, the characteristics of the air mass change and so does the weather in the area
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II. Weather FrontsA. The boundary between 2 air masses with DIFFERENT characteristics.
B. The DENSITY of each air mass determines its behavior
More dense objects rise or fall?
A. El límite entre 2 masas de aire con características DIFERENTES.
B. La DENSIDAD de cada masa de aire determina su comportamiento
Objetos más densos se elevan o caen?
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Weather Fronts
What 2 things determine density of an
air mass?
¿Qué 2 cosas determinan la densidad de una masa de aire?
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What do you notice about the two halves of the sky?
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C. Weather FrontsThere are 4 types of weather fronts1. Warm Front2. Cold Front3. Stationary Front4. Occluded Front
Hay 4 tipos de frentes meteorológicos1. Frente cálido2. Frente frío3. Frente estacionario4. Frente ocluido
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In your notes
Take notes on the four types of fronts. You should include each of the following:
1. Diagram/drawing of what is happening in your front2. Written explanation of what is happening in your
front3. What weather comes from your front4. Symbol for your front
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In groups! You will be responsible for 1 weather front
Your group will create a poster with the following about your front...
1. Diagram/drawing of what is happening in your front2. Written explanation of what is happening in your
front3. What weather comes from your front4. Symbol for your front
NOTE: copy all info into your notes and be ready to present!
10 minutes!
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Cold FrontsQuickly moving cold air mass runs into a slowly moving warm air mass
-Cold denser than warm so cold sinks under warm and pushes warm upwards
-Warm air cools, causing clouds to formCAUSE: abrupt changes in weatherSevere thunderstorms, strong windsfollowed by cool, fair weather
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Cold Front
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Warm Fronts
Slowly moving warm air mass collides with a cold air mass and rises over
CAUSES: clouds, and light rain
*because warm fronts move slower than cold fronts, may have rainy or foggy weather for several days
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Warm Front
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Stationary Front
Cold & warm air masses meet, neither strong enough to overtake the other
-They stay in place for an extended period of time
CAUSES: many days of rain, snow, fog, or clouds
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Stationary Front
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Occluded FrontWarm air mass is caught between 2 cooler air masses
-Dense, cool air moves under the warm air and pushes it upwards
(warm air is “occluded” or “cut off”)-Cooler air masses mix in the middle
CAUSES: cool ground temp, strong winds, and heavy precipitation
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Occluded Front
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What type of front is over Charlotte?
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What type of front is over Wyoming?
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Exit Ticket1. What type of air mass are you likely to find
over the Atlantic Ocean by North Carolina?2. What type of front is likely to produce rain for
several days?3. What is the symbol for a cold front?4. Compare and contrast STATIONARY &
OCCLUDED fronts (Provide at least 1 comparison and 1 contrasting fact!)