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POLYNIA [1 record]

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Alphabetical list of terms

Record 1 2012-07-09

English

Subject field(s)
  • Glaciology
  • Ecosystems
DEF

Any non-linear opening enclosed in ice, which is formed by various combinations of phenomena such as tides, wind, currents and upwellings.

OBS

[This opening is] surrounded by sea ice, but not large enough to be called open water (ice); commonly found off the mouth of a large river.

OBS

May contain brash ice and/or be covered with new ice, nilas or young ice; sub-mariners refer to these as skylights.

OBS

Plural: polynyas; polynyi.

OBS

polynya: (pronounced pol-in-YA) ... The term originates from the Russian term ... for ice hole.

OBS

polynia: term used at Natural Resources Canada - Earth Sciences Sector, and by Parks Canada.

Key term(s)
  • polynyas
  • polynyi
  • polynias

French

Domaine(s)
  • Glaciologie
  • Écosystèmes
DEF

Espace d'eau entouré de glace qui est, en général, de la glace fixée.

OBS

[Cette ouverture] résulte de diverses combinaisons de phénomènes comme les marées, les vents, les courants ou les remontées d'eau profonde.

OBS

Cet espace reste invariable et présente habituellement une forme oblongue.

OBS

Une polynie réapparaissant à la même position tous les ans est appelée polynie récurrente.

OBS

Les sous-mariniers les appellent des claires-voies.

OBS

polynie : terme en usage à Ressources naturelles Canada - Secteur des sciences de la Terre, de même qu'à Parcs Canada.

Spanish

Campo(s) temático(s)
  • Glaciología
  • Ecosistemas
DEF

Volumen de agua englobada en la masa de hielo fijo, generalmente de rápida formación; este espacio permanece constante y generalmente tiene forma alargada.

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