ATOC 1050 chapter 11 notes

ATOC 1050 chapter 11 notes - Chapter 11 Freezing...

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Chapter 11 – Freezing Precipitation and Ice Storms I. Freezing precip. is rain or drizzle that freezes on contact with objects on the surface of the Earth such as grass, roads, trees, your house, car, buildings, etc. and coats everything with a glaze of ice A. Economic losses from ice storms include those from halted transportation (air, cars, buses, etc.) which affects commercial establishments as well as the ability of people to get to work, power outages, and structural failure. B. Freezing precip. is responsible for about 20% of all winter-related injuries. C. Freezing precip. aloft causes aircraft icing which extremely dangerous to aircraft without de- icing or anti-icing equipment. (Ice decreases performance; your plane can become an ice ball before it crashes) 1
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D. Two precipitation processes: 1. Bergeron process or ice crystal process: a). involves supercooled water which is water that is a liquid at temps. below freezing. Why? No ice condensation nuclei. (Aircrafts
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ATOC 1050 chapter 11 notes - Chapter 11 Freezing...

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