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24 terms

Weather and Climate

Chapter 4 Review Study Guide Vocabulary
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climate
average year-after-year, the weather in some location averaged over some long period of time, average, year-after-year conditions of temperature and precipitation in a particular region
tropical zone
near the equator, between 23.5 degrees North and 23.5 degrees South latitudes
polar zone
the region between 66.5 degrees north and south latitudes and the poles; the sun's rays strike at a very small angle in the polar zone
temperate zone
moderate climate zone between the polar zones and the tropics
marine climate
the climate of some coastal regions, with relatively warm winters and cool summers.
continental climate
The climate of the centers of continents, with cold winters and warm or hot summers.
windward
The side of a mountain that faces the oncoming wind
leeward
The side of a mountain range that faces away from the oncoming wind
monsooon
seasonal winds in teh Indian ocean
rain forests
dense forests that receive high amounts of rain each year
savanna
a flat grassland in tropical or subtropical regions
desert
an arid region with little or no vegetation
steppe
partly dry grassland often found on the edges of a desert
humid subtropical
hot, rainy summers and mild winters with some rain
subarctic
a huge area of North America which spreads from Alaska in the west to the Maritimes in the East
tundra
a vast treeless plain in the arctic regions between the ice cap and the tree line
ice age
any period of time during which glaciers covered a large part of the earth's surface
sunspot
a cooler darker spot appearing periodically on the sun's photosphere
El Nino
(oceanography) a warm ocean current that flows along the equator from the date line and south off the coast of Ecuador at Christmas time
La Nina
The water in the Eastern Pacific Ocean is cooler than usual-opposite from El Nino
global warming
an increase in the average temperature of the earth's atmosphere (especially a sustained increase that causes climatic changes)
greenhouse gases
Gases such as carbon dioxide, methane, nitrous oxide, water vapor, and ozone in the atmosphere which are involved in the greenhouse effect.
ozone depletion
thinning of Earth's ozone layer caused by CFC's leaking into the air and reacting chemically with the ozone, breaking the ozone molocules apart
CFC
a , synthetic organic compounds first created in the 1950s and used primarily as refrigerants and as propellants