Index of evaporating surface of horizontal area

{
  "id": "MLC-T-MET-006494",
  "term": "Index of evaporating surface of horizontal area",
  "field": "Meteorology and atmospheric science",
  "definition": "A dimensionless ratio of the total surface area available for evaporation within a given plot of land to the horizontal area of that plot. This index accounts for the increased surface provided by three-dimensional objects like vegetation, buildings, or uneven terrain, compared to a simple flat plane. For a vegetated area, this value is equivalent to the Leaf Area Index (LAI) and is a key parameter in models of evapotranspiration and surface energy balance.",
  "url": "https://mlchart.com/terminology/meteorology/index-of-evaporating-surface-of-horizontal-area/"
}