Important characteristics of earth's atmosphere which determines the wind & weather patterns
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Atmospheric or Air Pressure
Force per unit area exerted on the earth's surface by the weight of the air above the surface; measured by a mercury or aneroid BAROMETER
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Air Temperature
Annual, monthly, diurnal maximum & minimum temperature
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Dry-Bulb Temperature
Refers basically to ambient air temperature;the air temperature is indicated by a thermometer not affected by moisture of the air
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Wet-Bulb temperature
Type of temperature measurement that reflects the physical properties of the system with a mixture of a gas and a vapor, usually air & water vapor; indicated by a moistened thermometer bulb exposed to air flow
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Dew point
Temperature at which water vapor starts to condense out of the air; Temperature at which air becomes completely saturated
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