EarthLabs > Drought > Lab 4: When Precipitation Patterns Change

When Precipitation Patterns Change


Precipitation patterns during La Nina years. Images produced by NOAA/CIRES - Climate Diagnostics Center - University of Colorado, Boulder

Have you been in a drought? Are you living through one now? Most places in the United States experience drought occasionally. Sometimes, drought causes widespread interruptions of daily life. Other times, drought is milder; people may not even notice it except for the lack of rainy days.

In this activity, you'll develop a working definition of drought and do a hands-on demonstration to understand the role of soil moisture in drought. You'll also examine precipitation data and streamflow levels and use them to predict where drought is most severe in the United States. You'll check your predictions by comparing them to the U.S. monitors drought severity layer.

Keeping Track of What You Learn

In these pages, you'll find two kinds of questions. Your teacher will let you know which questions you should answer and turn in.

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