GEOSCAN Search Results: Fastlink


TitleAnalyse des relations entre le climat et les séries temporelles de densité de cerne
DownloadDownload (whole publication)
LicencePlease note the adoption of the Open Government Licence - Canada supersedes any previous licences.
AuthorNicault, A; Cournoyer, L; Labarre, T; Bégin, Y
SourceUtilisation des archives naturelles pour la reconstitution du passé hydro-climatique; by Bégin, C; Nicault, A; Bégin, Y; Geological Survey of Canada, Open File 8768, 2021 p. 78-87, Open Access logo Open Access
PublisherNatural Resources Canada
Documentopen file
Mediaon-line; digital
RelatedThis publication is contained in Utilisation des archives naturelles pour la reconstitution du passé hydro-climatique
File formatpdf
ProvinceQuebec; Newfoundland and Labrador
NTS13; 22; 23; 24; 33; 34
AreaComplexe La Grande; Labrador
Lat/Long WENS -78.0000 -60.0000 57.0000 51.0000
Subjectsenvironmental geology; hydrogeology; Nature and Environment; Science and Technology; climatology; paleoclimatology; hydrologic environment; dendrochronology; densities; paleoenvironment; temperature; precipitation; statistical analyses; Le projet ARCHIVES; Climate change; Hydrology; Boreal ecosystems; Forests; Trees; Biology; Environmental indicators; Phanerozoic; Cenozoic; Quaternary
Illustrationslocation maps; plots; time series; tables
ProgramClimate Change Geoscience Extreme Events
Released2021 06 28
AbstractIn the framework of the ARCHIVES project, we produced several chronologies of tree-ring density, in addition to the tree-ring widths, tree-ring isotopes and varved sediments temporal series. In the literature tree-ring maximum density is indeed considered as a very good indicator of temperature. The paleoclimatic potential of 38 tree-ring minimal density chronologies and 38 tree-ring maximum density chronologies was analyzed. While the potential of minimum density is fairly low in terms of climate reconstructions, the potential of maximum density is very good in terms of summer temperature reconstruction. However, several chronologies have revealed a decrease in the density to climate relationship since the late 60s. This decrease is interpreted as a climate divergence phenomenon, as previously suggested in the literature. Thus, the use of tree-ring maximum density chronologies in climate reconstructions must take into account this phenomenon.

Date modified: