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Flashcards Unit 6
Meteorology
29
Environmental Studies
9th Grade
01/05/2016

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Cards

Term
Definition
Troposphere is the first layer closest to Earth. Then, stratosphere, mesophere, thermosphere.Sent: The layers of the atmosphere protect living things on Earth from the sun's radiation.Ex: Ozone, Ionosphere
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Definition
The changing of water based on temperatureSent.: The 3 changing states of water is solid, liquid, and gas.Ex: melting, evaporating
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Definition
Energy absorbed/released by a state changing.Sent: Latent heat has a solid, liquid, and gas phaseEx: Change, melting
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Definition
Stage where no more of a substance can be absorbed into a type of solutionSent: In the uhsaturation point, nothing else can be accepted.Ex: sponge absorbed, dew point
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Definition
Percentage of water vapor in the air shown as amount needed for saturation in the same temperature.Sent: Relative humidity (RH) is a ratioEx: 100% in 10 degrees, 28% in 30 degrees
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Definition
Instrument used to measure moisture in the atmosphereSent: The hygrometer was first invented in 1755 by Johann LambertEx: psychrometer, thermometers
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Definition
Temperature which air must be cooled to reach saturation Sent: Dew point measures the moisture in the atmosphereEx: dew on grass, flowers
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Definition
rate of temperature occuring when there is rising or decreasing air parcel takes place.Sent: Adiabatic rates are also lapse ratesEx: pressure, density
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Definition
Mass of condensed water vapor that floats in the atmosphereSent: CLouds form by rising and cooling of air Ex: Cirrus, Cumulus
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Definition
: Volume of air based on its temperature and water vapor Sent: Air masses usually cover many milesEx: northern, tropical
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Definition
pressure exerted by weight of air on EarthSent: Gravity is involved with air pressure on EarthEx: Balloons, water
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Definition
Instrument measuring atmosphere pressureSent: Barometers determine height above sea levelEx: mercury, mechanical
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Definition
Natural movement of air in a form of a current blowing from a certain directionSent: Wind is air blowing in a natural motion.Ex: local, land breeze
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Definition
Lines drawn on a weather map for atmosperic pressure.Sent: Isobars can help show areas of low and high pressureEx: 1000mb, 1020mb
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Definition
Factors that affect wind deal with forces and pressureSent: Factors that affect wind can be involving friction in motionEx: pressure gradient force, Coriolis effect
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Definition
small particles of a cloud droplet when it condensesSent: Cloud Condensation Nuclei can also be known as "Cloud seeds"Ex: dust, salt crystal
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Definition
System of winds that rotate inward to areas of low pressureSent: Some effects of cyclones include heavy rain, strong winds, and tornadoes.Ex: Tropical storm, a depression
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Definition
System where high atmospheric pressure is at the centerSent: Anticyclones circulate clockwiseEx: calm, fine weather
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Definition
cooler mass of air replacing a warmer mass of air on groundSent: Cold fronts usually move from northwest to southeast.Ex: colder, drier
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Definition
A warm mass of air replacing a colder mass of rain on groundSent: Warm fronts usually move from southwest to northeastEx: moist, warm
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Definition
A pair of air masses where niether are strong enough to replace each otherSent: When a cold and warm front stops moving, it becomes a stationary frontEx: blue spikes, red domes on line
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Definition
When a cold front overtakes a warm frontSent: In a storm, the cold front roates and catches the warm frontEx: less dense, colder
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Definition
Coriolis effect, friction, and pressure affect wind directionSent: Several factors affect wind and wind directionEx: currents, wind system
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Definition
Climating changes occuring in the equatorial Pacific reigion Sent: El Nino events occur every few yearsEx: warm, poor nutrient water
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Definition
Associated with cooler temperatures in the equatorial Pacific OceanSent: La Nina and El Nino associate with opposite temperaturesEx: drier, sunnier weather
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Definition
Change in frequency for an observer moving relative to the sourceSent: In the Doppler effect, getting closer to the source builds up higher frequencyEx: low, high
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Definition
Part of the Earth's stratosphere that absorbs the Sun's UV raysSent: It contains a lot of concentration of Ozone (O3)Ex: UV rays, molecules
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Definition
Process which thermal radiation from a planetary surface gets absorbed by atmospheric gasesSent: Without greenhouse gases trapping heat, the Earth would be very coldEx: Solar radiation, re-radiated heat
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Definition
A gradual increase in the Earth's temperature Sent: Global warming making temperature changes can cause changes in climatesEx: Carbon Dioxide, air pollution
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