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20 Cards in this Set
- Front
- Back
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What units does the metric (CGS) system measure?
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length, weight & time respectively.
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What is the difference between weight and mass?
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Weight is a function of gravitational force.
Mass is a function inertia/acceleration. |
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What does a dyne measure?
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force
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What are sunspots?
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Sunspots are regions of strong localized magnetic fields and indicate relatively cool areas in the photosphere
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In the Southern Hemisphere, approximately what date will the greatest amount of incoming solar radiation be received?
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The Southern Hemisphere receives the greatest amount of incoming solar radiation around December 22.
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What percent of the earth's insolation do land and water absorb?
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%51
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What is the effect on a polar air column in relation to a column of air over the equator?
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An air column over the poles is thinner than an air column over the equator.
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What is the definition of pressure?
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Pressure is the force per unit area
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With a sea level pressure reading of 1000 mb, what would be the approximate pressure at 18,000 feet?
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With a sea level pressure reading of 1000 MB, the approximate pressure at 18,000 ft will be 500 MB.
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What environmental changes have the biggest effect on pressure changes?
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Temperature change has the biggest effect on pressure change.
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What is the definition of Temperature?
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Temperature is the measure of molecular motion
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What is 20 C converted to Fahrenheit?
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68 degrees Fahrenheit
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Name the zones of the earth's atmosphere in ascending order?
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Troposphere - Tropopause
Stratosphere - Stratopause Mesosphere - Mesopause Thermosphere Exosphere |
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What are the 4 methods of heat transfer?
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Conduction
Advection Convection Radiation |
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What is the horizontal transport of heat called?
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Advection
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Name the 3 states in which moisture in the atmosphere may be found.
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solid, liquid & gaseous
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What is the primary source of atmospheric moisture?
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the oceans
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What is the difference between relative humidity & absolute humidity?
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RH: ratio percentage between water vapor actually present & water vapor necessary for saturation at a given temperature.
AH: amount of water vapor present per unit volume of space. |
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What is the definition of mixing ratio?
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The ratio of the mass of water vapor to the mass of dry air.
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What information does the dew point temperature provide to meteorologists?
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The temperature that the air must be cooled, at a constant pressure and constant water vapor content, in order for saturation to occur.
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