Unprotected thermometer

{
  "id": "MLC-T-MET-009893",
  "term": "Unprotected thermometer",
  "field": "Meteorology and atmospheric science",
  "definition": "A thermometer that is directly exposed to the ambient environment without any shielding or housing, making it susceptible to errors from direct solar radiation, precipitation, or wind. While simple, such thermometers can provide inaccurate air temperature readings due to radiative heating or evaporative cooling. Standard meteorological practice requires thermometers to be housed in a Stevenson screen or similar shelter.",
  "url": "https://mlchart.com/terminology/meteorology/unprotected-thermometer/"
}