Everglades Depth Estimation Network (EDEN) for Support of Biological and Ecological Assessments

Confidence Index Maps

A daily spatial confidence index (CI) map, or surface, is created for each day for provisional and final water-level surfaces and gives a general indication of confidence in the accuracy of the modeled water levels by grid cell. The confidence index is a geometric mean of three input parameters weighted by level of significance; 1) distance from water-level gages and type of data at the data (estimated, measured or dry), 2) distance from canals or model-domain boundaries, and 3) cross-validation errors from the water-surface model.

The computation of the confidence index is based on theoretical understanding of the hydraulics of the Everglades and associated canal systems. Extensive research is needed to test the assumption made here to determine the confidence, or more precisely, an error band around the EDEN water-level estimates. In the absence of this research, the estimate of confidence is intended to provide a general guideline to users about the accuracy of the water level estimated by EDEN in their study areas.

This product will be available soon from the EDEN website.