Illuminance

{
  "id": "MLC-T-MET-006457",
  "term": "Illuminance",
  "field": "Meteorology and atmospheric science",
  "definition": "The measure of the total amount of light, or luminous flux, falling onto a surface per unit of area. It quantifies the intensity of illumination on a surface as perceived by the human eye, distinct from irradiance, which measures total radiant energy. The standard unit of illuminance is the lux, defined as one lumen per square meter.",
  "see_also": [
    "luminance"
  ],
  "url": "https://mlchart.com/terminology/meteorology/illuminance/"
}