Barchan

{
  "id": "MLC-T-MET-003800",
  "term": "Barchan",
  "field": "Meteorology and atmospheric science",
  "definition": "A crescent-shaped sand dune with its convex side facing upwind and two 'horns' pointing downwind. These dunes form in areas with a limited sand supply, a relatively flat surface, and a consistent wind direction. Barchans typically migrate across desert landscapes at varying speeds, depending on wind strength and sand availability.",
  "synonyms": [
    "barchane",
    "barkhan"
  ],
  "url": "https://mlchart.com/terminology/meteorology/barchan/"
}