Sky luminance

{
  "id": "MLC-T-MET-008921",
  "term": "Sky luminance",
  "field": "Meteorology and atmospheric science",
  "definition": "The photometric measure of the luminous intensity emitted or reflected by the sky in a given direction, per unit projected area. It quantifies the brightness of the sky as perceived by the human eye, influenced by solar radiation, cloud cover, and atmospheric scattering. Sky luminance is measured in candelas per square meter (cd/m²).",
  "url": "https://mlchart.com/terminology/meteorology/sky-luminance/"
}