Reading...
Play button
Play button
Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
49 Cards in this Set
- Front
- Back
|
Define weather
|
condition of the atmosphere at a given time and place
|
|
|
define climate patterns
|
weather condition in a geographic region over a long time
|
|
|
define greenhouse effect
|
earth's atmosphere traps heat energy helps keep plant warm
|
|
|
define atmospheric pressure
|
our atmosphere has weight; air pressure changes at differnt places on the earth's urface
|
|
|
what happens when air is heated
|
it expands bcomes less dense and rises creating a low pressure area
|
|
|
what happens when air cools
|
it moves higher in the atmosphere and water brings vapor and clouds of rain
|
|
|
define cyclone
|
centers of low pressure
|
|
|
name 4 major air pressure zones
|
equitorial low, subtropical highs, subpolar lows and polar highs
|
|
|
define equatorial low
|
direct rays of the sun cause warm air to rise
|
|
|
Define subtropical highs
|
the rising air cools the upper atmosphere and flows toward the poles and about 30 degrees latitude the cool air begins to sink to the surface
|
|
|
define subpolar lows
|
cold air flows along the surface away fro mthe poles at about 60 degrees latitude the cold air forces warmer air flowing toward the polar higher
|
|
|
define polar highs
|
at the poles dense cold air sinkgs to the surface causing polar highs
|
|
|
what does air pressure affects
|
it affects global wind patterns
|
|
|
define wind
|
the orizontal flow of air; wind always frlos from high to low pressure areas; moves heat and cold across the earths surface
|
|
|
define prevailing wind
|
areas of the world that have winds that blow from the same directions most of the time
|
|
|
what are doldrums
|
not all areas of the world lie in prevailing wind belts the zone along the equator is calm with no prevailing winds
|
|
|
what are westerlies
|
The prevailing wids are called westerlies and flow generally from the west from subtropical highs towards the subpolar lows
|
|
|
what are cold polar easterlies
|
strong winds blow from artic and antarctic areas into the middle latitudes
|
|
|
Define evaporation
|
the process by which water changes from liquid to gas
|
|
|
define humidity
|
water vapor in the air
|
|
|
define condensation
|
the higher the temperature the more water vapor the air can hold when air cools it will reach a temperature at which it cannot hold any more water vapor at which point it is condensation
|
|
|
where is precipitation in regard to the pressure zone
|
it is the lowest
|
|
|
define orographic effect
|
effect occurs when moist air pushes agains a mountain
|
|
|
define winward side
|
side of the mountain facing the wind that receives a great deal of moisture
|
|
|
define rain shadow
|
the side of the mountain facing away from the wind is the leeward side as the air moves down the leeward side it warms and dries the dry side is the rain shadow
|
|
|
what are storms
|
they are sudden and violent weather events
|
|
|
what are tornadoes
|
middle latitude storms may produce thunderstorms
|
|
|
what are hurricanes
|
the most powerful and destructive tropical cyclones
|
|
|
what are typhoons
|
hurricanes also called this in the western pacific ocean can create dangerously high waves
|
|
|
what are weather satellites
|
satelittes orbit the earth to help weather forecasters track the development of storms and saves lives
|
|
|
what do radars do
|
gather atmospheric data
|
|
|
define cold polar easterlies
|
strong winds blow from artic and antarctic areas into the middle latitudes
|
|
|
what are fronts
|
two air masses of different tempertures or moisture levels meet with precipitation normally occurring between the fronts
|
|
|
what are jet streams
|
fastest of these high speed westerly winds
|
|
|
what are currents
|
great rivers of seawater
|
|
|
what are gulf streams
|
good example of warm currents
|
|
|
what place has the warmest climate
|
Athens
|
|
|
what place has the coldest climate
|
vancouver
|
|
|
what place has the hottest temperature in August
|
Athens
|
|
|
which place do you think is located in a marine west coast climate region
|
vancouver
|
|
|
which place do you think is located in a desert climate region and why
|
Cairo, because the temperature is warm and there is little precipitation
|
|
|
which place do you think is located in a mediterranean climate region and why
|
Athens because its a warm climate and a lot of precipitation
|
|
|
define air masses
|
large homogeneous body of air that has almost uniform conditions of temperature and humidity
|
|
|
polar continental is
|
cold and dry
|
|
|
tropical maritime is
|
hot and wet
|
|
|
polar maritime is
|
cold and wet
|
|
|
tropical continental is
|
hot and dry
|
|
|
what is contiental location
|
how close to or far away from a large body of water is located
|
|
|
what are mountain barriers
|
winds are forced to rise over the hills and mountains
|
