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The Government of Canada’s terminology and linguistic data bank.
DYNAMIC CLIMATOLOGY [2 records]
Record 1 - internal organization data 2023-06-15
Record 1, English
Record 1, Subject field(s)
- Climatology
Record 1, Main entry term, English
- Arctic climatology
1, record 1, English, Arctic%20climatology
correct
Record 1, Abbreviations, English
Record 1, Synonyms, English
Record 1, Textual support, English
Record number: 1, Textual support number: 1 CONT
Arctic climatology involves the study of complex and dynamic land-ocean-atmosphere interactions across semipermanently frozen northern high-latitude environments. These areas, approximately confined within the polar cell(north of 60° N), comprise a vast portion of the semipermanent boreal cryosphere and are particularly sensitive to climatic fluctuations and changes at regional to global scales, phase variations in the local and remote modes of ocean-atmosphere variability, and transient weather patterns that transfer heat and moisture to and from the region. 1, record 1, English, - Arctic%20climatology
Record 1, French
Record 1, Domaine(s)
- Climatologie
Record 1, Main entry term, French
- climatologie de l'Arctique
1, record 1, French, climatologie%20de%20l%27Arctique
correct, feminine noun
Record 1, Abbreviations, French
Record 1, Synonyms, French
Record 1, Textual support, French
Record 1, Spanish
Record 1, Campo(s) temático(s)
- Climatología
Record 1, Main entry term, Spanish
- climatología del Ártico
1, record 1, Spanish, climatolog%C3%ADa%20del%20%C3%81rtico
correct, feminine noun
Record 1, Abbreviations, Spanish
Record 1, Synonyms, Spanish
Record 1, Textual support, Spanish
Record number: 1, Textual support number: 1 CONT
Para que más personas conozcan de primera mano los cambios drásticos que está experimentado el Polo Norte debido al aumento de la temperatura global, el doctor en climatología del Ártico, David Barber, de la Universidad de Manitoba en Canadá, y su hermano, el fotógrafo Doug Barber publicaron el libro "Two Ways of Knowing". 1, record 1, Spanish, - climatolog%C3%ADa%20del%20%C3%81rtico
Record 2 - internal organization data 2003-04-04
Record 2, English
Record 2, Subject field(s)
- Chronology
- Archaeology
- Climatology
- Soil Science
Record 2, Main entry term, English
- carbon-14 method
1, record 2, English, carbon%2D14%20method
correct
Record 2, Abbreviations, English
Record 2, Synonyms, English
Record 2, Textual support, English
Record number: 2, Textual support number: 1 CONT
Carbon-14 Method. Radiocarbon dating techniques, first developed by the American chemist Willard F. Libby and his associates at the University of Chicago in 1947, are frequently useful in unravelling time-related problems in archaeology, anthropology, oceanography, pedology, climatology, and recent geology. Through metabolic activity, the level of carbon-14 in a living organism remains in constant balance with the level in the atmosphere or some other portion of the earth's dynamic reservoir, such as the ocean. Upon the organism's death, carbon-14 begins to disintegrate at a known rate, and no further replacement of carbon from atmospheric carbon dioxide can take place. The rapid disintegration of carbon-14 generally limits the dating period to approximately 50, 000 years, although the method is sometimes extended to 70, 000 years. Uncertainty in measurement increases with the age of the sample. Carbon dating works well on organic specimens such as wood, bone and cloth that are between 2 000 and 20 000 years old. 2, record 2, English, - carbon%2D14%20method
Record 2, French
Record 2, Domaine(s)
- Chronologie
- Archéologie
- Climatologie
- Science du sol
Record 2, Main entry term, French
- méthode du carbone 14
1, record 2, French, m%C3%A9thode%20du%20carbone%2014
correct, feminine noun
Record 2, Abbreviations, French
Record 2, Synonyms, French
Record 2, Textual support, French
Record number: 2, Textual support number: 1 CONT
Si l'on veut mettre en évidence les fluctuations du climat dont les périodes dépassent le siècle, il convient de disposer d'informations débordant largement une telle durée. [...] Aussi les chercheurs ont-ils dû faire appel à des procédés d'investigation indirects qui se sont singulièrement perfectionnés au fil des années, tels que, l'analyse historique des chroniques anciennes, la dendroclimatologie, [...] la méthode du carbone 14 appliquée aux micro-organismes fossiles des couches sédimentaires océaniques ou lacustres [...] 2, record 2, French, - m%C3%A9thode%20du%20carbone%2014
Record number: 2, Textual support number: 2 CONT
Il existe de nombreuses méthodes de datation qui donnent un âge [...] absolu. Il en est ainsi des datations physiques réalisées à partir de l'analyse des isotopes radioactifs dont l'état initial se modifie en fonction du temps écoulé depuis l'enfouissement de l'échantillon. Leur champ d'application dépend de l'ancienneté des sédiments et des objets concernés. La méthode du carbone 14 est utilisée pour les dernières dizaines de milliers d'années. 3, record 2, French, - m%C3%A9thode%20du%20carbone%2014
Record number: 2, Textual support number: 3 CONT
Méthode du carbone 14 : Mise au point par l'Américain Willard Frank Libby en 1949. Le carbone des végétaux provient uniquement du gaz carbonique de l'atmosphère absorbé grâce à l'assimilation chlorophyllienne. Sous l'effet des rayons cosmiques une partie infime, mais mesurable, du carbone atmosphérique est transformé en carbone radioactif. Du fait de la chaîne alimentaire, ce carbone radioactif se retrouve dans les os des animaux. Dès que ceux-ci meurent, l'assimilation cesse et le carbone radioactif perd sa radioactivité. Elle décroît de moitié tous les 5 730 ans. On peut dater une objet organique en mesurant la radioactivité résiduelle. La précision de la mesure repose sur l'hypothèse d'une proportion constante de carbone radioactif dans l'atmosphère. 4, record 2, French, - m%C3%A9thode%20du%20carbone%2014
Record 2, Spanish
Record 2, Textual support, Spanish
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