Mandatory layer

{
  "id": "MLC-T-MET-007099",
  "term": "Mandatory layer",
  "field": "Meteorology and atmospheric science",
  "definition": "A specific atmospheric layer for which meteorological observations, such as temperature, humidity, and wind, are required to be reported by international agreement. These layers are defined by standard pressure levels, providing a consistent framework for global atmospheric analysis and forecasting. Data from mandatory layers are assimilated into numerical weather prediction models.",
  "url": "https://mlchart.com/terminology/meteorology/mandatory-layer/"
}