Double-mass curve

{
  "id": "MLC-T-MET-005110",
  "term": "Double-mass curve",
  "field": "Meteorology and atmospheric science",
  "definition": "A plot used in hydrometeorology to assess the consistency of a station's data by comparing its cumulative measurements against those of a stable reference. The curve is generated by plotting the cumulative values of a variable, like precipitation or runoff, from a test station against the cumulative values from a control station or regional average. A break in the slope of the curve indicates a systematic change in the data collection at the test station, such as instrument relocation or calibration issues.",
  "url": "https://mlchart.com/terminology/meteorology/double-mass-curve/"
}