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Understanding the Sky

Understanding the Sky. Meteo 901A Spring Semester. Clouds – from both sides. Cirrus – the highest (15-25,000 ft) Composed of ice crystals – wisps and streaks See through in most visible satellite pictures Looks ‘very cold’ in IR. Clouds – from both sides.

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Understanding the Sky

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  1. Understanding the Sky Meteo 901A Spring Semester

  2. Clouds – from both sides • Cirrus – the highest (15-25,000 ft) • Composed of ice crystals – wisps and streaks • See through in most visible satellite pictures • Looks ‘very cold’ in IR

  3. Clouds – from both sides • Altocumulus – the middle (7-15,000 ft) • Composed of both water and ice • Looks like fish scales • Translucent in most visible satellite pictures • Looks ‘less cold’ in IR

  4. Clouds – from both sides • Stratus – the low clouds (0-5,000 ft) • Composed mainly of water • Indistinct appearance • Reflects much light in visible satellite pictures • Looks ‘warm’ in IR

  5. Clouds – from both sides • Cumulus – the vertical clouds (2-50,000 ft) • Composed of water below and ice above • Sharp appearance • Looks like cells in visible satellite pictures • Can look like bulls-eye of cold in IR

  6. Clouds and Weather Lore • Ring around the sun or moon, Rain or snow is coming soon

  7. Clouds and Weather Lore • Mares tails and Mackerel scales make Tall Ships lower their sails

  8. The Sky and Weather Lore • Red sky in the morning, sailors take warning… Red sky at night, sailor’s delight

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