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APESCH15

TermDefinition
Aerosols minute paraticles or liquid droplets suspended in the air
Albedo a description of a surface's reflective properties
Carbon Management
Carbon Neutral a system or process that doesn't release more carbon to the atmosphere than it consumes
Climate a description of the long-term pattern of weather in a particular area
Cold Front a moving boundary of cooler air displacing warmer air
Convection current rising or sining air currents that stir the atmosphere and transport heat form one area to another. Convection currents also occur in water
Coriolis Effect the influence of friction and drag on air layers near the earth; deflects air currents to the direction of the earth's rotation
Downbursts
El Nino a climatic change marked by shifting of a large warm water pool form the wesstern Pacific Ocean towards the east. Wind direction and precipitation patterns are changed over much of the Pacific and perhaps around the world
ENSO – El Nino Southern Oscillation
Greenhouse Effect gases in the atmosphere are transparent to visible light but absorb infrared (heat) waves that are reradiated from the earth's surface
Hurricanes large cyclonic oceanic storms with heavy rain and winds exceeding 119 km/hr
IPCC – Intergovernmental Panel on Climate Change an international organization formed to assess global climate change and its impacts. concerned with social, economic, and environmental impacts of climate change, established by the UN Environment Program and the World Meteorological Organization
Jet Streams powerful winds or currents of air that circulate in shifting flows; similar to oceanic currents in extent and effect on climate
Kyoto Protocol an international agreement to reduce greenhouse gas emissions
La Nina the part of a large-scale oscillation in the Pacific (and, perhaps, other oceans) in which trade winds hold warm surface waters in the western part of the basin and cause upwelling of cold, nutreint-rich, deep water in the eastern part of the ocean
Latent heat stored energy in a form that isnot sensible (detectable by ordinary senses)
Milankovitch Cycles periodic variations in tilt, eccentricity, and wobble int he earth's orbit; Milutin Milankovitch suggested that it is responsible for cyclic weather changes
Monsoons seasonal reversals of wind patterns caused by the different heating and cooling rates of the oceans and continents
Ozone a highly reactive molecule containing three oxygen atoms; a dangerous pollutant in ambient air. In the stratosphere, however, ozone forms an ultraviolet absorbing shield that protects us from mutagenic radiation
Pacific Decadal Oscillation a large pool of warm water that moves north and south in the Pacific Ocean every 30 years or so and has large effects on North AMerica's climate
Positive feedback loop a situation in which a factor or condition causes changes that further enhance that factor or condition
Stratosphere the zone in the atmosphere extending form the tropopuae to about 50 km above the earth's surface; temperatures are stable or rise slightly with altitude; has very little water vapor but is rich in ozone
Tornadoes violent storms characterized by strong swirling winds and updrafts; tornadoes form when a strong cold front pushes under a warm, moist air mass over the land
Troposphere the layer of air nearest to the earth's surface; both temperature and pressure usually decrease with increasing altitude
Warm Front a long, wedge-shaped boundary caused when a warmer advancing air mass slides over neighboring cooler air parcels
Weather description of the physical conditions of the atmosphere (moisture, temperature, pressure, and wind)
Created by: AlanaR
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