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EAU SOUS PERGELISOL [4 records]
Record 1 - internal organization data 2012-06-21
Record 1, English
Record 1, Subject field(s)
- Geomorphology and Geomorphogeny
- Hydrology and Hydrography
Record 1, Main entry term, English
- tundra pool water
1, record 1, English, tundra%20pool%20water
correct
Record 1, Abbreviations, English
Record 1, Synonyms, English
Record 1, Textual support, English
Record number: 1, Textual support number: 1 DEF
Uniformly shallow water body formed in lowlands covered by thin peat. The shores are formed by steep, but low (less than 0.3 m) banks of perennially frozen peat. Permafrost usually occurs under the water bodies. 1, record 1, English, - tundra%20pool%20water
Record 1, French
Record 1, Domaine(s)
- Géomorphologie et géomorphogénie
- Hydrologie et hydrographie
Record 1, Main entry term, French
- eau de mare de toundra
1, record 1, French, eau%20de%20mare%20de%20toundra
correct, feminine noun
Record 1, Abbreviations, French
Record 1, Synonyms, French
Record 1, Textual support, French
Record number: 1, Textual support number: 1 DEF
Étendue d’eau uniformément peu profonde formée dans les basses terres couvertes d’une mince couche de tourbe. Les rives sont abruptes mais basses(de moins de 0. 3 m) et recouvertes de tourbe pergélisolée. Le pergélisol est d’habitude présent sous les étendues d’eau. 1, record 1, French, - eau%20de%20mare%20de%20toundra
Record 1, Spanish
Record 1, Textual support, Spanish
Record 2 - internal organization data 2011-12-12
Record 2, English
Record 2, Subject field(s)
- Glaciology
- Polar Geography
Record 2, Main entry term, English
- permafrost distribution
1, record 2, English, permafrost%20distribution
correct
Record 2, Abbreviations, English
Record 2, Synonyms, English
- distribution of permafrost 2, record 2, English, distribution%20of%20permafrost
correct
Record 2, Textual support, English
Record number: 2, Textual support number: 1 CONT
Distribution of Permafrost.- Permafrost underlies more than 50% of the ground surface of Canada. The two major divisions of permafrost are continuous permafrost and discontinuous permafrost. In the continuous permafrost zone, permafrost occurs everywhere beneath the ground surface except large bodies of water. In the far north, it may be more than 500 m thick. The discontinuous permafrost zone is broken into two other divisions: the widespread permafrost zone, where permafrost underlies 50-90% of the land area, and the sporadic permafrost zone, where it occurs mostly inpeatlands and underlies 10-50% of the land area. 3, record 2, English, - permafrost%20distribution
Record number: 2, Textual support number: 2 CONT
The total annual freezing index has been used to predict permafrost distribution, and the design freezing index is commonly used in engineering to estimate the maximum thickness of lake ice and the maximum depth of frost penetration in the ground. 1, record 2, English, - permafrost%20distribution
Record 2, French
Record 2, Domaine(s)
- Glaciologie
- Géographie du froid
Record 2, Main entry term, French
- distribution du pergélisol
1, record 2, French, distribution%20du%20perg%C3%A9lisol
correct, feminine noun
Record 2, Abbreviations, French
Record 2, Synonyms, French
- répartition du pergélisol 1, record 2, French, r%C3%A9partition%20du%20perg%C3%A9lisol
correct, feminine noun
- distribution des pergélisols 2, record 2, French, distribution%20des%20perg%C3%A9lisols
correct, feminine noun
- répartition des pergélisols 3, record 2, French, r%C3%A9partition%20des%20perg%C3%A9lisols
correct, feminine noun
- répartition du permafrost 4, record 2, French, r%C3%A9partition%20du%20permafrost
feminine noun
- distribution du permafrost 5, record 2, French, distribution%20du%20permafrost
feminine noun
Record 2, Textual support, French
Record number: 2, Textual support number: 1 CONT
Distribution du pergélisol.-Le pergélisol est sous-jacent à plus de 50 % de la surface du Canada. Les deux types principaux de pergélisol sont le pergélisol continu et le pergélisol discontinu. Dans la zone à pergélisol continu, le pergélisol est présent partout sous la surface du sol, à l'exception des grandes étendues d’eau. Dans le Grand Nord il atteint plus de 500 m d’épaisseur. La zone à pergélisol discontinu comporte deux sous-divisions : la zone à pergélisol étendu, où le pergélisol est sous-jacent à 50-90 % de la surface, et la zone à pergélisol sporadique, où il est présent surtout sous les tourbières et est sous-jacent à 10-50 % de la surface. 1, record 2, French, - distribution%20du%20perg%C3%A9lisol
Record 2, Spanish
Record 2, Textual support, Spanish
Record 3 - internal organization data 2009-01-07
Record 3, English
Record 3, Subject field(s)
- Glaciology
- Petrography
Record 3, Main entry term, English
- rock permafrost
1, record 3, English, rock%20permafrost
correct, see observation
Record 3, Abbreviations, English
Record 3, Synonyms, English
Record 3, Textual support, English
Record number: 3, Textual support number: 1 CONT
Spatial information on the distribution of rock permafrost is crucial for the assessment of permafrost degradation in stepp environments and is a prerequisite for stability analysis of permafrost rocks. 2, record 3, English, - rock%20permafrost
Record number: 3, Textual support number: 1 OBS
rock permafrost: term used at Natural Resources Canada - Earth Sciences Sector. 3, record 3, English, - rock%20permafrost
Record 3, French
Record 3, Domaine(s)
- Glaciologie
- Pétrographie
Record 3, Main entry term, French
- pergélisol rocheux
1, record 3, French, perg%C3%A9lisol%20rocheux
see observation, masculine noun
Record 3, Abbreviations, French
Record 3, Synonyms, French
- pergélisol de glaciers rocheux 2, record 3, French, perg%C3%A9lisol%20de%20glaciers%20rocheux
proposal, see observation, masculine noun
Record 3, Textual support, French
Record number: 3, Textual support number: 1 OBS
Les glaciers rocheux constituent des indicateurs de pergélisol, visibles dans le paysage montagnard [...] Dans le cas de la glace des glaciers rocheux, les chercheurs s’accordent presque tous à en attribuer l'origine à des phénomènes d’enfouissement de la neige sous les débris rocheux ou au regel de l'eau liquide au contact du sol gelé [...] 3, record 3, French, - perg%C3%A9lisol%20rocheux
Record number: 3, Textual support number: 2 OBS
pergélisol rocheux : terme en usage à Ressources naturelles Canada - Secteur des sciences de la Terre. 2, record 3, French, - perg%C3%A9lisol%20rocheux
Record 3, Spanish
Record 3, Textual support, Spanish
Record 4 - internal organization data 2003-10-29
Record 4, English
Record 4, Subject field(s)
- Chemical Elements and Compounds
- Geochemistry
- Pollutants
- Energy Transformation
Record 4, Main entry term, English
- gas hydrate
1, record 4, English, gas%20hydrate
correct
Record 4, Abbreviations, English
Record 4, Synonyms, English
Record 4, Textual support, English
Record number: 4, Textual support number: 1 CONT
Gas Hydrate is an ice-like crystalline solid formed from a mixture of water and natural gas, usually methane. They occur in the pore spaces of sediments, and may form cements, nodes or layers. ... Gas Hydrate is found in sub-oceanic sediments in the polar regions (shallow water) and in continental slope sediments (deep water), where pressure and temperature conditions combine to make it stable. ... Natural Gas Hydrate contains highly concentrated methane, which is important both as an energy resource and as a factor in global climate change. 2, record 4, English, - gas%20hydrate
Record 4, French
Record 4, Domaine(s)
- Éléments et composés chimiques
- Géochimie
- Agents de pollution
- Transformation de l'énergie
Record 4, Main entry term, French
- hydrate de gaz
1, record 4, French, hydrate%20de%20gaz
correct, masculine noun
Record 4, Abbreviations, French
Record 4, Synonyms, French
Record 4, Textual support, French
Record number: 4, Textual support number: 1 CONT
Les hydrates de gaz naturel sont des solides semblables à la glace. Ce sont des molécules de gaz(comme le méthane) incluses dans une cage de molécules d’eau. Ils ont été découverts dans le laboratoire de Sir Humphrey Davy en 1810. Dans la nature, ils sont stables dans certaines conditions de température et de pression, comme celles qui existent dans les sédiments qui composent le pergélisol et le sol sous-jacent du bassin Beaufort-Mackenzie. De très grandes quantités de gaz peuvent être stockées sous forme d’hydrates. Un volume unitaire d’hydrate peut emmagasiner ou libérer 160 volumes de méthane durant sa formation ou sa décomposition. Les hydrates de gaz pourraient devenir une ressource énergétique, mais ils ont l'inconvénient d’être une source significative de gaz à effet de serre. Ce gaz peut être libéré vers l'atmosphère durant la décomposition des hydrates par suite d’un réchauffement climatique ou d’une montée du niveau de la mer, en particulier dans les zones littorales où l'eau est à une température plus élevée que le sol. Les hydrates de gaz constituent également un danger pendant le forage d’exploration ou les activités de production des hydrocarbures. En effet, si les mesures appropriées ne sont pas prises pour maintenir leur stabilité, il peut s’ensuivre une libération non contrôlée de gaz, des explosions, des incendies et des phénomènes dus à l'instabilité des sédiments. Il est donc important de bien connaître la répartition et le comportement des hydrates de gaz naturel. 2, record 4, French, - hydrate%20de%20gaz
Record number: 4, Textual support number: 1 PHR
Zone à hydrate(s) de gaz; accumulation, déplacement, dissociation, échantillon, fonte, formation, gisement, inhibition, production, réservoir, trace, transport d’hydrate(s) de gaz; ressource en hydrate(s) de gaz. 3, record 4, French, - hydrate%20de%20gaz
Record number: 4, Textual support number: 2 PHR
Les hydrates de gaz constituent une source d’énergie, se forment. 3, record 4, French, - hydrate%20de%20gaz
Record 4, Spanish
Record 4, Textual support, Spanish
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