Science of Watershed Health


Building a watershed health index

Fundamental ecological concepts are the foundation for each health index. Consistent steps are taken to progress from the identification of important ecological concepts to the delivery of a health index value by watershed:

Review scientific literature to inform the selection of significant and well-supported ecological relationships

Review availability of statewide GIS data that support the selected relationship.

Suitable GIS data must be:

Discuss index development approaches with subject matter experts

Compute results by applying an appropriate GIS method, such as:

Rank and Score Results

Downscaling Health Indices for Catchment Scores

Health Index Summary Table