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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. Cite/attribute Resource . admin. (2005, October 27). Unit 4: Temperature-Moisture Relationship. Retrieved January 07, 2011, from Free Online Course Materials — USU OpenCourseWare Web site: This work is licensed under a Creative Commons License Creative Commons License