Surface boundary layer

{
  "id": "MLC-T-MET-009428",
  "term": "Surface boundary layer",
  "field": "Meteorology and atmospheric science",
  "definition": "The lowest part of the atmospheric boundary layer, extending from the Earth's surface up to a height of approximately 10 to 100 meters, where turbulent fluxes of momentum, heat, and moisture are nearly constant with height. Within this layer, the influence of the surface is dominant, and vertical gradients of wind, temperature, and humidity are steepest. It is also known as the constant flux layer.",
  "synonyms": [
    "constant flux layer",
    "surface layer"
  ],
  "see_also": [
    "atmospheric boundary layer",
    "radix layer",
    "Obukhov length",
    "Aerodynamic roughness length"
  ],
  "url": "https://mlchart.com/terminology/meteorology/surface-boundary-layer/"
}