Vacillation

{
  "id": "MLC-T-MET-009936",
  "term": "Vacillation",
  "field": "Meteorology and atmospheric science",
  "definition": "A periodic fluctuation in the intensity or position of atmospheric circulation patterns, often observed in large-scale features like jet streams or planetary waves. This oscillatory behavior can influence weather patterns over extended periods. An example is the vacillation of the polar vortex, which can lead to cold air outbreaks.",
  "url": "https://mlchart.com/terminology/meteorology/vacillation/"
}