ESS CH.12 Summary

ESS CH.12 Summary - ESS Ch 12 Summary Weather the state of...

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ESS Ch. 12 Summary - Weather- the state of the atmosphere at a given time and place o 5 Variables that define weather: Temperature, air pressure, humidity, cloudiness, and wind speed + direction - Climate- the average weather condition at a give place. In order to determine the climate, the weather must be averaged over a period of years. - 2 energy sources drive the atmosphere: The Suns heat and the Earths rotation . - 3 major gases that make up most of the aerosol-free air (99.96%) o nitrogen, Oxygen, and Argon - Aerosols- tiny liquid droplets or tiny solid particles that are so small they remain suspended in the air. Ex) fog, tiny ice crystals, sea salt crystals, dust in winds, pollutants, etc. - Humidity is how much water vapor is in the air, while relative humidity is the ratio of the vapor pressure in air to the saturation vapor pressure. - Water vapor, carbon dioxide, methane, nitrous oxide and ozone- all help trap the sun’s heat and shield the earth from ultraviolet rays. ALL GREENHOUSE GASES
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This note was uploaded on 04/07/2008 for the course EARTHSS 1 taught by Professor Reeburgh during the Winter '08 term at UC Irvine.

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ESS CH.12 Summary - ESS Ch 12 Summary Weather the state of...

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