Atmosphere

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What is a psychrometer?: instrument used to find the dewpoint.
What is evaporation?: the process of changing liquid water from oceans, lakes, streams, and solids on earth's surface into water vapor in the atmosphere
What is Transpiration: the process by which plants release water vapor through their leaves into the atmosphere.
What are vertical movements of air?: currents
When the air is saturated, the vapor pressure is called______ ______ _______: saturation vapor pressure
What are the lines used to connect places of equal temperature, equal pressure?: Isothermes, isobars
What are the high- pressure, dry belts known as?: zones of divergence
What are aerosols?: dust and water vapor that scatter and reflect some radiation
_______ _________ is responsable for changes in all atmospheric variables: Heat energy
what does it mean to be saturated?: when the air contains all the moisture it can hold at a particular temperature
What is air pressure?: the force or weight of the air pushing down on a unit area of surface.
What is the dew point temperature?: the temperature at which condensation occurs. at the dewpoint air is holding all the moisture it can hold.
What is Relative Humidity?: The comparison between the amount of moisture in the air with the amount the air can actually hold at that temperature
When there is a smaller difference between the wet- bulb and dry- bulb temps, the more ________ the air.: humid
Orographic lifting occurs when...: mountains act as barriers to the flow of airforcin it to rise to the other side
The psycrometer consists of 2 thermometers- what are they?: dry- bulb and wet- bulb
As the air temperature approaches the dewpoint, ___________ becomes more likely.: precipitation
The amount water vapor actually present in the air is known as _______ _______: absolute humidity
What is condensation?: the process by which gaseous water vapor changes to liquid water
The ability of air to hold water vapor is directly related to the ____________ of the air.: temperature
What is insolation?: incoming solar radiation.
To determine dewpoint tempertureand relative humidity, use chart on pg.312 or in ESRT.: Hey nurse, whtz up?
What is a convection cell?: the cyclical movement of a fluid due to differences in density and the effect of the gravity field
the midlatitude jet stream is called the________ _____ ______: polar jet stream
As the dewpoint temp. and air temp. come close together,the relative humidity ______, and the probability of precipitation _______.: increases, increases
A falling barometer indicates what?: the probability that rainy weather is on it's way.
which is heavier- moist air or dry air?: dry air is heavier due to the fact that air pressure is inversely proportional to teh amount of moisture in the air
What is capacity?: the amount of water vapor can hold
The greater the absolute humidity, the __________ the dewpoint temperature.: higher
What is frictional drag?: the energy of friction produced at teh interface of earths surface and the atmosphere
When the air is saturated, no ___________ takes palce.: evaporation
What are clouds? give 2 examples: collection of tiny water droplets or ice crystals
- cirrus, and cumulonimbus
What is the instrument used to measure atmospheric pressure?: barometer
what is vapor pressure?: when the pressure exerted by only the water vapor in the air is measured.
How does the atmosphere recieve most of it's heat energy?: conduction, absorbtion of insolation as it passes through atmosphere, and reradiation from earth
When water vapor changes directly into solid water, ice or snow through process known as...: sublimation
What are jet streams?: high- speed winds which travel in a wave- like eastern direction
air always moves from areas of ____ pressure to areas of ___ pressure: high, low
What is evapotranspiration?: refers to all the water vapor released by both evaporation and transpiration.
What are the low- pressure belts where air regions come together?: zones of convergence
What is convection?: transfer of heat energy by movement of fluids
the rate of change in pressure between two locations is called...: pressure gradient
What are large horizontal movements of air near the earths surface, What are local horizontal movements of air near earths surface?: winds, breezes
What is condution?: the transfer of heat energy from molecule to molecule
when water vapor condenses directly onto a cold surface_____ is formed. When water vapor comes into contact with a freezing surface, _____ is formed: dew, frost
If the density of a matter increases than the _________ also increates.: pressure (they are directly related)
what three factors affect daily temperature?: latitude, altitude, and closeness to large bodies of water

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Number of cards 47