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PCS Earth Science
Chapter 14 Vocabulary - Climate
| Term | Definition |
|---|---|
| climate | seasonal pattern of weather conditions in an area over many years; does not change rapidly; the average weather conditions in an area over a long period of time |
| climatology | study of the climate; climate change and its cause |
| normal | typical; average |
| polar zone | cold climate zone where the sun's rays strike Earth at a very low angle |
| temperate zone | moderate climate zone between the polar zones and the tropics |
| tropics | warm, low-latitude areas near the equator |
| heat island | an area in which the air temperature is generally higher than the temperature of surrounding rural areas |
| Koeppen Classification System | the most widely used classification system that classifies climate using temperature and precipitation; narrowed into six categories; tropical, arid, mesothermal, microthermal, polar, and highland |
| microclimate | environmental conditions within a small area that differs significantly from the climate of the surrounding area |
| El Nino | a warm ocean current that flows along the equator from the date line and south off the coast of Ecuador at Christmas time; a climate variation that takes place in the tropical Pacific about every 3-7 years for a duration of about one year |
| Maunder Minimum | period of low sunspot activity that corresponded to the Little Ice Age in Europe |
| season | Earth's tilt in combination with its orbit around the Sun cause the ______. A period of the year characterized by particular conditions of weather, and temperature |
| global warming | an increase in the average temperature of the earth's atmosphere (especially a sustained increase that causes climatic changes); a gradual increase in the overall temperature of the earth's atmosphere generally attributed to the greenhouse effect |
| Ice Age | a period of extremely cold temperatures when part of the planet's surface was covered with massive ice sheets |
| Greenhouse Effect | natural situation in which heat is retained in Earth's atmosphere by carbon dioxide, methane, water vapor, and other gases |