Unit 4: Temperature-Moisture Relationship
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Temperature & Heat :: Temperature & Altitude :: Atmospheric Moisture :: Relative Humidity :: Clouds :: Exercises
Exercise 1
Atmospheric Temperature and Moisture
Match the meteorology terms with the definitions.
| Term | Definition |
| 1. Adiabatic process | a. Partial pressure or that part of atmospheric pressure that is exerted by molecules of water vapor displacing air molecules. |
| 2. Dew or frost | b. The degree of the hotness or coldness of a substance; a measurement of its molecular activity. |
| 3. Dew point | c. The warming by compression or cooling by expansion without a transfer of heat or mass into a system (atmosphere). |
| 4. Equilibrium vapor pressure | d. When there is no net gain or loss of water molecules between the air and a solid or liquid. |
| 5. Relative humidity | e. Water condensed or frozen onto surface vegetation or objects when temperatures fall below the dew point of the surface air due to radiational cooling. |
| 6. Temperature | f. The ratio of the actual amount of water vapor in a given volume of air to the amount which could be present if the ari were saturated at the same temperature. |
| 7. Temperature lapse rate | g. The temperature to which a parcel of air must be cooled to reach saturation. |
| 8. Vapor pressure | h. The amount of temperature change with altitude change, expressed as degrees Fahrenheit per 1000 feet. |
Exercise 2
Clouds As Weather Indicators
Match the clouds with the existing or probable weather conditions.
| Term | Definition |
| 1. Cirrostratus | a. Possible cool downdrafts of strong, gusty winds, and higher relative humidity. |
| 2. Cumulus | b. Strong winds aloft that could surface later. |
| 3. Cumulonimbus (Thunderhead) | c. When seen in morning could mean thunderstorms later in the day. |
| 4. Wall of Cumulus and/or dust | d. Stable atmosphere at least at cloud level. Possible drizzle. |
| 5. Altocumulus castellatus | e. Unstable atmosphere. |
| 6. Altocumulus lenticulars | f. A rapidly approaching cold front with strong shifting winds. |
| 7. Stratus | g. An approaching warm front with opssible rain. |
Copyright 2008,
Michael Jenkins.
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admin. (2005, October 27). Unit 4: Temperature-Moisture Relationship. Retrieved November 23, 2009, from Free Online Course Materials — USU OpenCourseWare Web site: http://ocw.usu.edu/Forest__Range__and_Wildlife_Sciences/Wildland_Fire_Management_and_Planning/Unit_4__Temperature-Moisture_Relationship_9.html.
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