Speed-up ratio

{
  "id": "MLC-T-MET-009126",
  "term": "Speed-up ratio",
  "field": "Meteorology and atmospheric science",
  "definition": "A dimensionless quantity representing the ratio of the wind speed at a specific location, often over a topographical feature, to the wind speed at a reference location in undisturbed flow. It quantifies the acceleration of wind due to terrain effects, such as hills or ridges. A speed-up ratio greater than one indicates an increase in wind velocity over the terrain.",
  "url": "https://mlchart.com/terminology/meteorology/speed-up-ratio/"
}