Base flow

{
  "id": "MLC-T-MET-003842",
  "term": "Base flow",
  "field": "Meteorology and atmospheric science",
  "definition": "The portion of streamflow that is sustained by the slow seepage of groundwater into a stream channel, rather than from direct surface runoff after a precipitation event. It represents the background discharge of a river and is the primary source of water during dry periods. Hydrograph separation is the technique used to distinguish base flow from stormflow in a stream's discharge record.",
  "url": "https://mlchart.com/terminology/meteorology/base-flow/"
}