Q vector

{
  "id": "MLC-T-MET-008231",
  "term": "Q vector",
  "field": "Meteorology and atmospheric science",
  "definition": "A mathematical construct derived from the quasi-geostrophic equations that indicates regions of atmospheric ascent and descent, and thus the development of synoptic-scale weather systems. It represents the forcing for vertical motion and is proportional to the ageostrophic circulation. The divergence of the Q vector is directly related to the vertical velocity in the atmosphere.",
  "url": "https://mlchart.com/terminology/meteorology/q-vector/"
}