Fraternal twin integrations

{
  "id": "MLC-T-MET-005747",
  "term": "Fraternal twin integrations",
  "field": "Meteorology and atmospheric science",
  "definition": "A method for evaluating the performance of a numerical weather prediction model by comparing two separate, long-term model runs. One run, the 'nature run', uses a high-resolution or complex physics configuration to simulate a realistic atmospheric state. The second run, the 'forecast run', uses a degraded or different model version to generate forecasts, which are then verified against the nature run to quantify model error growth and predictability.",
  "url": "https://mlchart.com/terminology/meteorology/fraternal-twin-integrations/"
}