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WHAT DATA ARE USED TO

MAKE THE MAP?

What Data Are Used to Make the Map?

Each week the map’s author analyzes numerous types of information and products from all entities and levels of government dealing with drought and across multiple time scales. Most of this information falls into one of the following categories: precipitation, streamflow, reservoir levels, temperature and evaporative demand, soil moisture, vegetation health, drought impact reports captured from media outlets and submitted by private citizens, and expert local input from over 400 individuals. Authors now use several dozen indicators while creating the U.S. Drought Monitor. However, not all areas are represented equally by all sources of data.

Because the USDM depicts both short‐ & long‐term drought conditions, the authors must look at data for multiple time scales. The final map produced each week represents a convergence of evidence or a summary of the story being told by all of the pieces of data.

sections

Who Makes the Map?

What Data are Used to Make the Map?

How are the Drought Categories Assigned?

What is the Timeline for Production?

Where can I Find the U.S. Drought Monitor?

USDM Brochure

This tutorial is brought to you through a partnership between the National Drought Mitigation Center, United States Department of Agriculture, and National Integrated Drought Information System.

LOCATION

3310 Holdrege Street
Lincoln, 68583-0988

CONTACT

402-472-6707
ndmc@unl.edu