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28 terms

Chapter 5 CLIMATE voab.

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infared radiation
heat waves of lengths longer than those wave lengths of visible light
greenhouse effect
proces by which water vapor and carbon dioxide in the atmosphere obsorb and reflect infared rays
humidity
water vapor in the air
relative humidity
a comparison between an amount of moisture in air at a certin temperaturend amount the air could hold at that temperature
hurricane
a fierce tropical storm with winds 74 mph or faster
low latitudes
an area close to the equator ranging from 30 N latitude to 30 S latitude
typhoon
a fierce storm or hurricane which forms a pacific ocean or a china sea
cyclone
a fierce storm or wind system that rotates as it travels
doldrums
a section of the ocean near the equator having no winds
trade winds
prevailing winds in the low laitudes blowing almost continually toward the equator
prevailing westerlies
winds blowing from the west in the middle latitudes
high latitudes
region from 60 N latitudes to the north pole and from 60 S latitude to the south pole
polar easterlies
prevailing from the east near the north or south poles
jet stream
a long narrow belt of high speed winds traveling from west to east
season
one of 4 different times of year when a certain amount of the suns energy reaches the earth
tropic of cancer
a line of latitude 23 1/2 N of the equator and furthest north that overhead sun reaches
summer solstice
the day with the longest period of daylight in the northern hemisphere and horter period in the southern hemisphere
arctic circle
an imaginary line circling earth at 66 1/2 N of the equator
antarctic circle
an imaginary line circling earth at 66 1/2 S of the equator
fall equinox
a time of days and nightsre equal length in both hemispheres begining of the fall in the northern hemisphereand spring in the southern hemisphere
tropic of capricorn
line of latitude 23 1/2 S of the equator and farthest south that overhead sun reaches
winter solstice
a day with the shortest period of daylight in the northern hemisphere and longest in the southern hemisphere
spring equinox
a time when days and nights are equal length in both hemispheres, begining of spring in the northern hemisphere and fall in the southern hemisphere
sea breeze
cool air blowing inland from sea during the day
land breeze
cool air blowing out to sea at night
orographic effect
precipitation cused by air moving up and over mountains
windward
side which faces wind
leeward
a side that faces away from wind