Environmental Science 1A03 Notes: Terms with defination

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Environmental Science
Luc Bernier

28 Ozonemolecule formed by three atoms of oxygen weakly bonded together in an unstable arrangement Atmospheric pressureforce exerted by air molecules per unit area AerosolsTiny suspended solid particles dust smoke etc or liquid droplets that enter the atmosphere from either natural or human anthropogenic sources such as the burning of fossil fuels Sulfurcontaining fossil fuels such as coal produce sulfate aerosols Ideal Gas LawppRTpressureair density287temperature in K BlackbodyBody that is perfectly efficient at emitting radiationInsolationThe incoming solar radiation that reaches the earth and the atmosphere AlbedoThe percent of radiation returning from a surface compared to that which strikes it Net Radiation Incoming radiationOutgoing radiation Poleward Heat Transport Surplus energy moves toward poles Atmospheric greenhouse effects The warming of an atmosphere by its absorbing and emitting infrared radiation while allowing shortwave radiation to pass on through The gases mainly responsible for the earths atmospheric greenhouse effect are water vapor and carbon dioxide Also called the greenhouse effect Global Energy Balance Energy absorbed by EarthEnergy absorbed at the surfaceEnergy recycled within the Earth System Autumnal equinoxThe equinox at which the sun approaches the Southern Hemisphere and passes directly over the equator Occurs around September 23 Vernal equinox The equinox at which the sun approaches the Northern Hemisphere and passes directly over the equator Occurs around March 20 Earths radiation terrestrial radiation is often called longwave radiation whereas the suns energy solar radiation is referred to as shortwave radiation Latitude ZonesNorth Pole arctic subarctic midlatitude Based on seasonal patterns of daily variation of isolation Continentality Effect of an inland location that favors greater temperature extremes WindChill Index Feel of temperature under cold conditions Humidity Amount of water vapor in the airLatent heat The heat that is either released or absorbed by a unit mass of a substance when it undergoes a change of state such as during evaporation condensation or sublimationSpecific Humidity Actual quantity of water vapor in air SHgkg Saturation Specific Humidity Maximum amount of water that an air parcel can contain at any given time based on its temperatureDew Point T at which air when cooled becomes saturated
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