BPI pan

{
  "id": "MLC-T-MET-004010",
  "term": "BPI pan",
  "field": "Meteorology and atmospheric science",
  "definition": "An instrument for measuring the rate of water evaporation, developed by the U.S. Bureau of Plant Industry. It consists of a circular, galvanized iron pan, 6 feet in diameter and 2 feet deep, buried in the soil so that its rim is 4 inches above the ground. The water level is maintained at or slightly below the level of the surrounding ground.",
  "url": "https://mlchart.com/terminology/meteorology/bpi-pan/"
}