Column abundance

{
  "id": "MLC-T-MET-004527",
  "term": "Column abundance",
  "field": "Meteorology and atmospheric science",
  "definition": "The total number of molecules or mass of a specific atmospheric constituent integrated vertically through a column of the atmosphere, typically expressed per unit area. This measurement provides an indication of the total amount of a gas or aerosol present above a given location. It is a key parameter derived from remote sensing observations, such as those from satellites, to monitor atmospheric composition and track changes in greenhouse gases or pollutants.",
  "see_also": [
    "Dobson unit"
  ],
  "url": "https://mlchart.com/terminology/meteorology/column-abundance/"
}