Pyrheliogram

{
  "id": "MLC-T-MET-010696",
  "term": "Pyrheliogram",
  "field": "Meteorology and atmospheric science",
  "definition": "The graphical record produced by a pyrheliograph, an instrument that continuously measures and records direct solar radiation over time. The chart displays the intensity of the sun's direct beam radiation, typically on a strip of paper mounted on a rotating drum. Interruptions or dips in the otherwise smooth curve on the pyrheliogram indicate the passage of clouds or other obstructions between the sun and the instrument.",
  "synonyms": [
    "actinogram"
  ],
  "url": "https://mlchart.com/terminology/meteorology/pyrheliogram/"
}