D-value

{
  "id": "MLC-T-MET-005197",
  "term": "D-value",
  "field": "Meteorology and atmospheric science",
  "definition": "The difference between the actual geopotential height of a constant pressure surface and the standard geopotential height for that pressure surface. It is often expressed in meters or decameters. A positive D-value indicates a higher-than-standard pressure surface, while a negative D-value indicates a lower-than-standard surface, providing insight into atmospheric pressure anomalies.",
  "url": "https://mlchart.com/terminology/meteorology/d-value/"
}