Saltwater intrusion

{
  "id": "MLC-T-MET-008639",
  "term": "Saltwater intrusion",
  "field": "Meteorology and atmospheric science",
  "definition": "The encroachment of saline water into a body of fresh water, particularly in coastal aquifers and estuaries. This process occurs when the pressure of the freshwater column is insufficient to hold back the denser, adjacent saltwater, a condition exacerbated by groundwater extraction or sea-level rise. The Ghyben-Herzberg relation approximates the depth of the freshwater-saltwater interface in an unconfined coastal aquifer.",
  "see_also": [
    "seawater intrusion"
  ],
  "url": "https://mlchart.com/terminology/meteorology/saltwater-intrusion/"
}