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MEROMICTIQUE [2 records]

Filter results by subject field Alphabetical list of terms

Filter results by subject field

Alphabetical list of terms

Record 1 2011-06-27

English

Subject field(s)
  • Hydrology and Hydrography
  • Geomorphology and Geomorphogeny
DEF

A lake which undergoes incomplete circulation at the autumn overturn.

OBS

... at the time of winter cooling [meromictic lakes] undergo only a partial circulation down to a depth determined by a density stratification.

French

Domaine(s)
  • Hydrologie et hydrographie
  • Géomorphologie et géomorphogénie
DEF

Lac dans lequel le changement de circulation à l'automne est incomplet.

Spanish

Campo(s) temático(s)
  • Hidrología e hidrografía
  • Geomorfología y geomorfogénesis
DEF

Lago cuya circulación es incompleta durante la inversión de las aguas que se producen en otoño.

Save record 1

Record 2 2003-12-22

English

Subject field(s)
  • Hydrology and Hydrography
DEF

Of, or pertaining to a lake whose water is permanently stratified and does not circulate completely throughout the basin at any time of the year.

CONT

Chemically stratified; meromictic (Partly mixed) lakes: In contrast to most lakes in which bottom and surface waters mix periodically (i.e. holomictic or "wholly mixed" lakes), some lakes become permanently stratified by the intrusion of saline water or salts liberated from sediments, creating a permanent density difference between surface and bottom waters.

French

Domaine(s)
  • Hydrologie et hydrographie
DEF

Se dit d'un lac dont les eaux n'entrent que partiellement en circulation et dont les couches profondes ne sont pas en communication régulière avec les eaux de surface.

CONT

D'autres [lacs] n'entrent que partiellement en circulation et les couches profondes sont ainsi hors de toute atteinte régulière par les eaux de surface; ce sont les lacs méromictiques. Un lac méromictique peut être considéré comme deux lacs ou parties de lacs superposées, un lac supérieur appelé mixolimnion (on l'appelle aussi parfois circulolimnion) et un lac inférieur, isolé ou monimolimnion.

Spanish

Campo(s) temático(s)
  • Hidrología e hidrografía
DEF

[Dícese de un] lago con circulación vertical incompleta del agua.

Save record 2

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