MLchartDataset catalogue

Polyn'ya

Term · Meteorology and atmospheric science · MLC-T-MET-008053

An area of open water surrounded by sea ice, occurring in polar regions during months of extensive ice cover. Polynyas are maintained through two primary mechanisms: persistent winds that drive ice away from a fixed boundary like a coastline, or the upwelling of warmer, deeper ocean water that melts the ice from beneath. These features create a large, localized flux of heat and moisture from the ocean to the cold polar atmosphere.

Table 1. Record
IdentifierMLC-T-MET-008053
FieldMeteorology and atmospheric science
Synonymsice clearing
Record as JSON
{
  "id": "MLC-T-MET-008053",
  "term": "Polyn'ya",
  "field": "Meteorology and atmospheric science",
  "definition": "An area of open water surrounded by sea ice, occurring in polar regions during months of extensive ice cover. Polynyas are maintained through two primary mechanisms: persistent winds that drive ice away from a fixed boundary like a coastline, or the upwelling of warmer, deeper ocean water that melts the ice from beneath. These features create a large, localized flux of heat and moisture from the ocean to the cold polar atmosphere.",
  "synonyms": [
    "ice clearing"
  ],
  "url": "https://mlchart.com/terminology/meteorology/polyn-ya/"
}

Record 7,270 of 10,816 in Meteorology and atmospheric science terminology (MLC-0110). Request the full dataset.