Alter shield

{
  "id": "MLC-T-MET-010364",
  "term": "Alter shield",
  "field": "Meteorology and atmospheric science",
  "definition": "A device used to protect a precipitation gauge from wind effects, which can cause an underestimation of actual rainfall or snowfall. It consists of a series of concentric rings or slats arranged around the gauge opening. This shield reduces turbulence and directs precipitation more accurately into the collector, particularly for solid precipitation.",
  "see_also": [
    "Nipher shield"
  ],
  "url": "https://mlchart.com/terminology/meteorology/alter-shield/"
}