Thawing index

{
  "id": "MLC-T-MET-009572",
  "term": "Thawing index",
  "field": "Meteorology and atmospheric science",
  "definition": "A measure of the magnitude and duration of above-freezing temperatures over a defined period, typically a year. It is calculated by summing the positive daily mean temperature departures from 0°C (32°F) for all days in the thawing season. The resulting value, expressed in degree-days, is used in engineering and permafrost studies to estimate the depth of seasonal ground thaw.",
  "see_also": [
    "freezing index",
    "growing season"
  ],
  "url": "https://mlchart.com/terminology/meteorology/thawing-index/"
}