Gauge zero

{
  "id": "MLC-T-MET-005884",
  "term": "Gauge zero",
  "field": "Meteorology and atmospheric science",
  "definition": "The arbitrary reference elevation or datum from which gauge height measurements are taken at a stream gauging station. This zero point does not necessarily correspond to the bottom of the stream or to sea level, but rather serves as a consistent baseline for local water level readings. All reported gauge heights are relative to this established gauge zero.",
  "url": "https://mlchart.com/terminology/meteorology/gauge-zero/"
}