| Title | Analyse des relations entre le climat et les séries temporelles de densité de cerne |
| Download | Download (whole publication) |
| |
| Licence | Please note the adoption of the Open Government Licence - Canada
supersedes any previous licences. |
| Author | Nicault, A; Cournoyer, L; Labarre, T; Bégin, Y |
| Source | Utilisation 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, https://doi.org/10.4095/328074  Open Access |
| Year | 2021 |
| Publisher | Natural Resources Canada |
| Document | open file |
| Lang. | French |
| Media | on-line; digital |
| Related | This publication is contained in Utilisation des archives
naturelles pour la reconstitution du passé hydro-climatique |
| File format | pdf |
| Province | Quebec; Newfoundland and Labrador |
| NTS | 13; 22; 23; 24; 33; 34 |
| Area | Complexe La Grande; Labrador |
| Lat/Long WENS | -78.0000 -60.0000 57.0000 51.0000 |
| Subjects | environmental 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 |
| Illustrations | location maps; plots; time series; tables |
| Program | Climate
Change Geoscience Extreme Events |
| Released | 2021 06 28 |
| Abstract | In 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. |
| GEOSCAN ID | 328074 |
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