Bathythermograph print

{
  "id": "MLC-T-MET-003858",
  "term": "Bathythermograph print",
  "field": "Meteorology and atmospheric science",
  "definition": "A photographic print made from the smoked-glass slide of a mechanical bathythermograph, exposed together with the calibration grid so that the temperature at each depth is read from the paper. It gives a permanent, copyable record, whereas the scratched slide is fragile. The slide itself is the original record, and the print is a reproduction of it.",
  "url": "https://mlchart.com/terminology/meteorology/bathythermograph-print/"
}