Trough line

{
  "id": "MLC-T-MET-009820",
  "term": "Trough line",
  "field": "Meteorology and atmospheric science",
  "definition": "A line drawn on a weather map connecting points of minimum atmospheric pressure within a trough. This line represents the axis of the elongated low-pressure area and is a focal point for convergence and upward motion in the atmosphere. It often delineates a boundary between air masses with differing characteristics.",
  "url": "https://mlchart.com/terminology/meteorology/trough-line/"
}