Strahler Order

{
  "id": "MLC-T-ENV-026905",
  "term": "Strahler Order",
  "field": "Environment",
  "definition": "Hierarchical ordering of streams based on the degree of branching. A first-order stream is an unforked or unbranched stream. Two first-order streams flow together to form a second-order stream, two second-order streams combine to make a third-order stream, etc. (Strahler 1957). This ordering method starts at zero at each terminal segment, and proceeds towards the root stream. Each time a bifurcation node is encountered, if both daughter branches have the same order, then the order is increased by one, otherwise the largest order is used.",
  "subject": "Water",
  "references": [
    "Aquatic Resource Monitoring - Terminology"
  ],
  "url": "https://mlchart.com/terminology/environment/strahler-order/"
}