Transmittance

{
  "id": "MLC-T-MET-009767",
  "term": "Transmittance",
  "field": "Meteorology and atmospheric science",
  "definition": "The fraction of incident electromagnetic radiation that passes through a substance or medium without being absorbed or scattered. It is a dimensionless quantity, often expressed as a percentage, and is inversely related to absorbance and opacity. In atmospheric science, it quantifies how much solar or terrestrial radiation penetrates through atmospheric layers.",
  "url": "https://mlchart.com/terminology/meteorology/transmittance/"
}