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Viewing ERC Percentiles

The complete ERC percentile list is available after you generate ERC Classes. The list includes the ERCs and the corresponding 1 hour, 10 hour, 100 hour, 1000 hour, live herbaceous and live woody fuel moistures for each percentile.

Percentile ranking is based on the historic ERCs for the dates during the years you have selected in the Date Filter, listed above the table. Repeated ERC values indicate that this ERC occurred more than 1 percent of the days. Fuel moistures are the average fuel moisture for days with the corresponding ERC. Percentile ERC can help you modify the ERC bins used for the ERC classes, including the minimum ERC that supports fire movement.

To view ERC percentiles:

  1. From the Analysis List, select the FSPro analysis for which you want to view the ERC percentiles.
  2. Click View Information. The General FSPro Information page appears.
  3. From the left menu, select ERC Classes. The FSPro ERC Classes page appears.
  4. If no ERC classes have been created, generate ERC classes.
  5. Select View Percentiles below the ERC classes table. The ERC Percentiles window appears.

Note: If the percentile table is blank and you are looking at ERC percentiles in an assigned analysis, generate ERC classes again. If the percentile table is blank and you are looking at ERC percentiles in an analysis in review, complete or rejected status, copy the analysis so that you can generate ERC classes and view ERC percentiles in the copied analysis. You cannot generate ERC classes in an analysis that is in review, complete, or rejected status.

Last updated on 9/8/2021 3:57:38 PM.

NOTE: The live fuel moisture values in the percentile table are calculated using the NFDRS method. This method may produce very different values from those shown in the ERC classes, which are calculated using Growing Season Index (GSI). The live fuel moisture values from these two locations should not be used to validate each other.

In This Section

About ERC Classes (FSPro)

To view ERC percentiles

See Also

ERC Classes Menu Option (FSPro)

Generating ERC Classes (FSPro)

Adding Rows to or Deleting Rows from the ERC Classes Table (FSPro)

Selecting a Date Filter for Generating ERC Classes (FSPro)


Field Descriptions

Glossary Resources

Spatial Data Reference

Landscape Data Source Reference

Relative Risk Reference

Organization Assessment Reference

Fire Behavior Reference

About the WFDSS Decision Editors