EDW Midterm

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15 Terms

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Weather
Day-to-day conditions of the atmosphere. The current temperature, humidity, wind conditions, amount and type of cloud cover, and the presence/absence of precipitation are all elements of weather
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Climate
Average weather condition of a place studied of a long period of time. Climatology concerns itself with the same elements of weather but over a longer time scale.
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The properties of air vary with [blank]?
Distance from the Earth's surface
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The sun heats the surface of the Earth, some of this heat goes into [blank]?
Warming the air near the surface, which then goes into the atmosphere
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Air Temperature is highest [blank]?
Near the surface and decrease with altitude
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What is the pressure of air related to [blank]?
The weight of air over a given location
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Thin air exerts less pressure than air at a [blank]?
Lower altitude
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Air Density
Depends on both temperature and the pressure through the equation of state
- Also decreases with altitude
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The atmosphere
-Contained within a relatively shallow envelope surrounding the planet
-8000 mile diameter and 60 miles thick
-Not uniform; fluid properties are constantly changing with time and location
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Atmospheric Compostition
-Heterosphere
-Homosphere
-Exosphere
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Atmospheric Temperature
-Thermosphere
-Mesosphere
-Stratosphere
-Troposphere
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Atmospheric Function
-Ionsphere
-Ozonesphere
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Heterosphere
-The outer atmosphere beginning from about 50 miles from the earth's surface and extending to space
-Gases are not evenly mixed but assorted by gravity according to their atomic weight and reaction of the gases with solar radiation
-Less than 0.001% of the mass of th4e earth's atmosphere is in the heterosphere
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Homosphere
-Extends from the Earth's surface to about 50 miles
-Density of air changes with altitude bet the proportion of gases is nearly uniform
-Exceptions are: Ozone, Water Vapor, Pollutants, and Some trace chemical.
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Mixture of Gases in the Homosphere
-Nitrogen
-Oxygen
-Argon
-Carbon Dioxide