lecture 1-17 grg sec1 - 1/17/08 History of Meteorology...

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1/17/08 History of Meteorology 1980s-Development and use of ground based lighting detection systems Late 1980s into the 1990s-Development and deployment of Automated Surface Weather Observing Systems (ASOS/AWOS) o Camp Maybree 1990s-Modernization and restructuring of the National Weather Service o One big weather office in New Braunfels Elements of Weather Air Temperature o Hotness or coldness of the air Humidity o How much moisture is present in the atmosphere at any given time Wind direction o Expressed as a direction from which the wind blows Ex. North to south= northerly wind Wind speed o How fast the wind is moving Clouds Precipitation o Something that falls from the sky dealing with moisture (rain, snow, sleet, hail, etc.) Atmospheric pressure o The weight or mass of the air above at a given place; not concrete; always decreases with height Visibility o How far you can see (very important) Weather Observation Satellite Radar
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lecture 1-17 grg sec1 - 1/17/08 History of Meteorology...

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