Ramp structure

{
  "id": "MLC-T-MET-008389",
  "term": "Ramp structure",
  "field": "Meteorology and atmospheric science",
  "definition": "The gently sloping boundary surface of a front, particularly a warm front, where warmer, less dense air ascends over a wedge of colder, denser air. This gradual upward slope forces broad-scale, slow ascent, leading to the formation of extensive stratiform clouds like cirrostratus, altostratus, and nimbostratus. The slope of this ramp is typically very shallow, with a vertical rise of about 1 kilometer for every 150 to 200 kilometers of horizontal distance.",
  "url": "https://mlchart.com/terminology/meteorology/ramp-structure/"
}