Unit 5 Lab: Humidity, Condensation,

and Clouds

Introduction

In the video and reading for Unit 5 you have been introduced to several common measures of the amount of moisture in the air:

When a manual surface observation is taken, the wet-bulb and dry-bulb (air) temperatures are normally measured with a sling psychrometer. Then using tables and formulas, the actual and saturation vapor pressures, the dew-point temperature, and the relative humidity can be obtained. Since these are among the most frequently used measures of moisture that we will encounter, we will practice performing the calculations and interpreting results in the lab activities. We will also look at weather products that use the measures. 

Objectives

Be able to interpret and convert among the various measures of atmospheric humidity including dew-point temperature, wet-bulb temperature and relative humidity.

Activities

As in the previous labs, you should complete each of the Activities listed at the top of the page in order. Each one has a

Lab Quiz

After completing all of the Activities, return to the schedule and complete the Lab Quiz. Remember that this quiz is not a part of your course grade, but it will help you determine where you may need additional study. Also, many of the questions on the proctored tests will be similar to if not identical to the practice questions.

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