sept17 - -adiabatic cooling—air mass rises, press down,...

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Sept. 17 th : Active surface content— where energy exchange takes place Active surface characteristics (fixed)— -slope -aspect (which way slope is facing) -elevation (higher to cooler/wetter) -location with respect to other features (topographic & geologic) Active surface characteristics (variable)— -land use -vegetation Bower Ration Relationship between soil surface heat flux and the air sensible heat Latent heat Characteristic of precipitation -form -storm types or causes (orographic, frontal, convectional) -distribution (area) -frequency distribution (time of occurrence) -intensity (amount per unit of time) Cooling an air mass (warm moist air contracting cold air)
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Unformatted text preview: -adiabatic cooling—air mass rises, press down, air expands (cooling process)-mixing cold & warm air (breath on cold day)-contact cooling (radiation coding) lower elevation more humidity Relative humidity (water vapor)-How much vapor is in the air compared to how much could be there at that temperature -the warmer the air is the more moisture it can hold Specific humidity-weight of H2O to weight of air Absolute humidity-weight of H2O in a given volume of air Measure Humidity:-cycrometer two bulbs one with wet sock -chemical hydrometer crystals soak up moisture-Infared radiation is soaked up by moisture...
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This note was uploaded on 11/14/2010 for the course NRM 4314 taught by Professor Fish during the Fall '10 term at Texas Tech.

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