Chapter05b - Clouds RECAP De conde w nsation on cold...

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Clouds
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RECAP Dew - condensation on cold surfaces. Frost - deposition on very cold surfaces. Haze - condensation on small airborne particles. Fog – saturated wet haze, visibility <1 km. Radiation fog – driven by radiation cooling Advection fog – driven by air movement Upslope fog - topography driven Evaporation fog – cold air above warm body of water.
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Clouds Definition: visible aggregate of tiny water droplets or ice crystals suspended in air Classification: four major cloud groups according to the height (of the cloud base). Within each group there are different types identified by their appearance High ( cirrus : Latin for “wisp of hair”) Cirrus, Cirrostratus, Cirrocumulus Middle ( alto , from the Latin altus: “high”) Altostratus, Altocumulus Low ( stratus , Latin for “layer”) Stratus, Stratocumulus, Nimbostratus Clouds with vertical extension ( cumulus : ”heap”) Cumulus, Cumulonimbus
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What are the important things to know Composition: recall that in the troposphere the temperature drops with
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Chapter05b - Clouds RECAP De conde w nsation on cold...

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