Adjoint model

{
  "id": "MLC-T-MET-003306",
  "term": "Adjoint model",
  "field": "Meteorology and atmospheric science",
  "definition": "A computational model that represents the adjoint of a forward numerical model, such as a weather prediction model. It calculates the sensitivity of a chosen scalar quantity, like a forecast error, to perturbations in the model's input variables at an earlier time. This model is constructed by transposing and linearizing the original forward model equations.",
  "see_also": [
    "adjoint equation",
    "adjoint sensitivity",
    "tangent linear equation"
  ],
  "url": "https://mlchart.com/terminology/meteorology/adjoint-model/"
}