GEO 211 1st Edition Lecture 1 Outline of Last Lecture I. There was no previous lecture Outline of Current Lecture II. Weather and ClimateA. Definition of weather and climateIII. Elements of Weather and ClimateB. TemperatureC. Air Pressure D. HumidityE. CloudsF. PrecipitationG. Wind H. VisibilityI. Earth’s Systems that Affect WeatherJ. AtmosphereK. Variable GasesCurrent LectureII. Weather and ClimateA. Weather: atmospheric conditions of a particular place and time Use same data to find climateB. Climate: Weather of an area averaged over a long period of time (30 years)III. Elements of Weather and ClimateC. Temperature: degree of hotness or coldness D. Air Pressure: force (weight) exerted by mass of air above a given point- Will throw off other variables if slightly changed- Cold air (dense) means high pressureE. Humidity: air’s water vapor content- More vapor in air means more humidity- Condenses and forms into very small droplets of water, bunch together and become cloudsF. Clouds: clusters of condensed fine droplets of water in the atmosphereThese notes represent a detailed interpretation of the professor’s lecture. GradeBuddy is best used as a supplement to your own notes, not as a substitute.- Does NOT predict rainfall or hailG. Precipitation: water that falls as rain, hail, or snow- The process that turns normal clouds into ones that contain rain etc. H. Wind: simply “moving air”- Moves at different miles per hourI. Visibility: simply “how far can you see”, how clear the atmosphere is IV. Earth’s Systems that Affect WeatherJ. Atmosphere: full of air molecules- 78% Nitrogen- 21% Oxygen(Both are permanent gases- not going to change in the percentage that is in the atmosphere)K. Variable gases: vary in proportion (not a large percentage in the atmosphere)- Water vapor turns to
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