Specific discharge

{
  "id": "MLC-T-MET-009091",
  "term": "Specific discharge",
  "field": "Meteorology and atmospheric science",
  "definition": "The volume flow rate of water through a unit cross-sectional area of a porous medium, such as soil or an aquifer. Also known as Darcy velocity, it represents a macroscopic, averaged velocity rather than the actual speed of water particles moving through pores. Specific discharge is calculated using Darcy's Law and is a fundamental quantity in hydrogeology and land-surface models, expressed in units of velocity like meters per day.",
  "url": "https://mlchart.com/terminology/meteorology/specific-discharge/"
}