Index 4 : A composite of metrics that synthesizes characteristics among these metrics into one value to represent environmental condition or environmental vulnerability, or some other quality or feature
Regional Vulnerability Assessment (ReVA) Program (Terms Are Helpful For Understanding the Activities of ReVA), Glossary, Vasu Kilaru, USEPA-Research Triangle Park, NC, USA 2011. http://www.epa.gov/reva/glossary.html, (Vulnr Assess - Amer) {84}