convergence

{
  "id": "MLC-T-MET-000579",
  "term": "convergence",
  "field": "Meteorology and atmospheric science",
  "definition": "A contraction of a vector field; the opposite of divergence. Convergence in a horizontal wind field indicates that more air is entering a given area than is leaving at that level. To compensate for the resulting \"excess,\" vertical motion may result: upward forcing if convergence is at low levels, or downward forcing (subsidence) if convergence is at high levels. Upward forcing from low-level convergence increases the potential for thunderstorm development (when other factors, such as instability, are favorable). Compare with confluence.",
  "see_also": [
    "divergence",
    "confluence"
  ],
  "references": [
    "NWS Glossary"
  ],
  "url": "https://mlchart.com/terminology/meteorology/convergence/"
}