TERMIUM Plus®
The Government of Canada’s terminology and linguistic data bank.
SPRING CIRCULATION [2 records]
Record 1 - internal organization data 2016-12-21
Record 1, English
Record 1, Subject field(s)
- Hydrology and Hydrography
Record 1, Main entry term, English
- spring overturn
1, record 1, English, spring%20overturn
correct
Record 1, Abbreviations, English
Record 1, Synonyms, English
- spring turnover 2, record 1, English, spring%20turnover
correct
- spring circulation 3, record 1, English, spring%20circulation
- spring over-turn 4, record 1, English, spring%20over%2Dturn
Record 1, Textual support, English
Record number: 1, Textual support number: 1 CONT
Normal thermal stratification of a pond, if it is to occur, generally begins in May or early June and ends in September or early October. Ponds can stratify because water attains maximum density at 39°F. It becomes less dense (lighter in weight) both above and below 39°F. Soon after the ice melts in the early spring, the water temperature throughout the pond rises to 32°F. Winds blowing across the pond's surface cause the water to pile up on the downwind side. The water moves downward, across the pond bottom, to the upwind side. The entire pond begins to circulate from top to bottom, maintaining a uniform temperature. As long as winds are strong enough, the pond temperature will remain uniform, even as the pond begins to warm during spring. This is a period known as "spring overturn." 5, record 1, English, - spring%20overturn
Record number: 1, Textual support number: 2 CONT
When surface water reaches 39 degrees in spring, it becomes heavier than the water immediately below it and therefore sinks. The downward movement of surface water forces water in the deeper parts of the lake upward. The resulting circulation of water is called spring turnover. Spring winds also help promote water circulation. 2, record 1, English, - spring%20overturn
Record number: 1, Textual support number: 1 OBS
turnover: A phenomenon usually occurring in spring and fall because of the increase in density of water above and below the temperature of minimum density. In the spring, as the surface of the water warms above the freezing point, the water increases in density, becomes heavier, and tends to sink, producing vertical currents, while in the fall, as the surface water becomes colder and therefore heavier, it also tends to sink. Also see overturning. 6, record 1, English, - spring%20overturn
Record number: 1, Textual support number: 2 OBS
spring overturn: term extracted from the “Glossaire de l’environnement” and reproduced with permission of the Organisation for Economic Co-operation and Development. 7, record 1, English, - spring%20overturn
Record 1, French
Record 1, Domaine(s)
- Hydrologie et hydrographie
Record 1, Main entry term, French
- renversement printanier
1, record 1, French, renversement%20printanier
masculine noun
Record 1, Abbreviations, French
Record 1, Synonyms, French
- brassage de printemps 1, record 1, French, brassage%20de%20printemps
masculine noun
Record 1, Textual support, French
Record number: 1, Textual support number: 1 OBS
renversement printanier; brassage de printemps : termes extraits du «Glossaire de l’environnement» et reproduits avec l’autorisation de l’Organisation de coopération et de développement économiques. 2, record 1, French, - renversement%20printanier
Record 1, Spanish
Record 1, Textual support, Spanish
Record 2 - internal organization data 1977-09-03
Record 2, English
Record 2, Subject field(s)
- Hydrology and Hydrography
Record 2, Main entry term, English
- spring circulation 1, record 2, English, spring%20circulation
Record 2, Abbreviations, English
Record 2, Synonyms, English
Record 2, Textual support, English
Record number: 2, Textual support number: 1 OBS
of lake waters. 1, record 2, English, - spring%20circulation
Record 2, French
Record 2, Domaine(s)
- Hydrologie et hydrographie
Record 2, Main entry term, French
- circulation vernale 1, record 2, French, circulation%20vernale
Record 2, Abbreviations, French
Record 2, Synonyms, French
Record 2, Textual support, French
Record number: 2, Textual support number: 1 OBS
des eaux d'un lac. 1, record 2, French, - circulation%20vernale
Record 2, Spanish
Record 2, Textual support, Spanish
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