Introduction to WRSI

The Water Requirement Satisfaction Index (WRSI) is a crop-specific model that evaluates the impact of temporal rainfall distribution. This module offers an in-depth explanation of the WRSI model and its applications.

After completing this module, you will be able to:

• Describe the various inputs of the WRSI model and the four types of WRSI products available
• Describe the uses and characteristics of Geospatial WRSI.
• Identify the impact of incorrect assumptions on the WRSI model.
• Describe the strengths, limitations, and important considerations when using the WRSI model

This module is presented by:

• Jim Rowland, Principal Investigator, USGS