Lecture 2-14 grg sec2

Lecture 2-14 grg sec2 - Lecture 2-14-08 Dew Water that has...

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Lecture 2-14-08 Dew Water that has condensed into objects near the ground when the temp. of those objects has cooled between the dew point temp of the surrounding air What happens when the air temp. falls below freezing after dew has formed? … its just frozen dew not frost Frost Covering of ice crystals produced by deposition on exposed surfaces when 1. Air temp falls below the freezing point 2. Temp of exposed objects falls below the surrounding airs dew point (or frost point) temp It never goes through liquid state Cloud formation Most clouds form as air rises, expands, and cools For condensation to occur: 1. Air must become saturated 2. There must be a surface on which condensation can occur Cloud formation processes Surface heating and free convection Topographic lift (creates turbulence) Widespread lifting (ascent) due to surface convergence Uplift along weather fronts ¾ tornadoes occur in America Fog (not a form of precipitation) A cloud with its base at the Earth’s surface
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This note was uploaded on 03/19/2008 for the course GRG 301K taught by Professor Kimmel during the Spring '08 term at University of Texas.

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Lecture 2-14 grg sec2 - Lecture 2-14-08 Dew Water that has...

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