Staff gauge

{
  "id": "MLC-T-MET-009180",
  "term": "Staff gauge",
  "field": "Meteorology and atmospheric science",
  "definition": "A simple, graduated scale or ruler permanently installed in a body of water, such as a river, lake, or reservoir, to visually indicate the water level or stage. It provides a direct reading of the water surface elevation relative to a fixed datum. Staff gauges are commonly used for manual observations and as a reference for automated water level sensors.",
  "url": "https://mlchart.com/terminology/meteorology/staff-gauge/"
}