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TitleÉtablissement de la base de données de référence ARCHIVES
DownloadDownload (whole publication)
LicencePlease note the adoption of the Open Government Licence - Canada supersedes any previous licences.
AuthorBégin, Y; Nicault, A; Bégin, C
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. 65-70, 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
NTS23E; 23F; 23G; 23J; 23K; 23L; 23M; 23N; 23O; 33E; 33F; 33G; 33H; 33I; 33J; 33K; 33L; 33M; 33N; 33O; 33P
AreaComplexe La Grande; Labrador
Lat/Long WENS -80.0000 -66.0000 56.0000 53.0000
Subjectsenvironmental geology; hydrogeology; paleontology; surficial geology/geomorphology; stratigraphy; geophysics; Nature and Environment; Science and Technology; climatology; paleoclimatology; dendrochronology; hydrologic environment; sampling techniques; watersheds; topography; latitude; models; fossils; fossil plants; surface waters; lakes; lake sediment thickness; varves; geostatistics; remote sensing; satellite imagery; computer simulations; Le projet ARCHIVES; Landsat Thematic Mapper; Climate change; Hydrology; Boreal ecosystems; Forests; Databases; Trees; Biology; lacustrine sediments; Networks; Archives; Phanerozoic; Cenozoic; Quaternary
IllustrationsLandsat images; photographs; flow diagrams
ProgramClimate Change Geoscience Extreme Events
Released2021 06 28
AbstractLike other dendrochronological networks in the world, the ARCHIVES group has established a collection of sites based on a stratified sampling plan taking into account average hydric conditions (mesic environments), in terms of exposure, and seeking to represent the major regional types of forest formations (spruce-lichen and spruce-moss forests). The distribution of sites also took into account the altitude, continentality and latitude to achieve at best the geographic coverage over the area stretching from James Bay to Labrador and between the 53rd and 56th parallels. The homogeneity and density of the stands, the age of the trees and their physiognomy were selection criteria used to eliminate certain possible effects such as competition during plant succession and other factors related to the heterogeneity of the sites or of the life history of trees. The area covered by the ARCHIVES network is 360,000 km2, a territory large enough to allow the combined analysis of climate and hydrological model data and dendrochonological data. For the millennial series, subfossil trees were sampled in a set of lakes selected on the basis of catchment physiography, spatial distribution over the vast designated area and fire history. The laminated sedimentary series of a few lakes were also used to complete the multi-proxy approach put forward in the ARCHIVES project. Finally, ARCHIVES used a complex assemblage of grid data obtained by kriging of instrumental registers, reanalyses and modeled series.

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