Index

{
  "id": "MLC-T-ENV-014064",
  "term": "Index",
  "field": "Environment",
  "definition": "1. A set of related measures combined to characterize a more abstract concept.\n\n2. A separate collection of cards, extra copies of documents, cross-reference sheets, or other forms arranged differently from the related record series to make it easier to locate relevant documents. See also CROSS-REFERENCE.\n\n3. A manual or automated listing arranged differently from a related record series or system to speed retrieval of relevant files. See also FINDING AIDS.\n\n4. Mathematical aggregation of indicators or metrics.\n\n5. A single number, derived from two or more environmental variables, that is intended to simplify complex information. For example, the Multimetric Index (MMI) for benthic macroinvertebrates in rivers and streams combines several metrics of benthic community condition into a single index score.\n\n6. A combination of multiple indicators.\n\n7. Single number, derived from two or more environmental variables, that is intended to simplify complex information. For example, the Multimetric Index (MMI) for benthic macroinvertebrates in rivers and streams combines several metrics of benthic community condition into a single index score.\n\n8. An integrative expression of site condition across multiple metrics. An index of biological integrity is often composed of at least 7 metric.",
  "subject": "Policy and guidance",
  "references": [
    "Program Evaluation Glossary",
    "Records Glossary",
    "Environmental Modeling and Assessment Program (EMAP) Master Glossary; EMAP Master Glossary",
    "Report on the Environment (ROE) Glossary",
    "EPA Guidelines to Assessing Regional Vulnerabilities at http://www.epa.gov/reva/docs/guidelines_reva_20080627.pdf",
    "EPA 235-R97-001"
  ],
  "url": "https://mlchart.com/terminology/environment/index-term/"
}