| Title | Reconstitution de l'amplitude des crues printanières passées dans le bassin versant de La Grande Rivière |
| Download | Download (whole publication) |
| |
| Licence | Please note the adoption of the Open Government Licence - Canada
supersedes any previous licences. |
| Author | Boucher, É; Lemay, M; 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. 122-129, https://doi.org/10.4095/328083  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 |
| NTS | 23; 24; 33; 34 |
| Area | Complexe La Grande; La Grande Rivière; Rivière Nécopastic; Lac de la Corvette; Lac Montausier |
| Lat/Long WENS | -80.0000 -68.0000 57.0000 52.0000 |
| Subjects | environmental geology; hydrogeology; Nature and Environment; Science and Technology; climatology; paleoclimatology; hydrologic environment; watersheds; floods; surface waters; rivers; lakes; flood
plains; ice; Le projet ARCHIVES; Climate change; Hydrology; Boreal ecosystems; Forests; Trees; Phanerozoic; Cenozoic; Quaternary |
| Illustrations | location maps; time series; bar graphs; plots; photographs |
| Program | Climate
Change Geoscience Extreme Events |
| Released | 2021 06 28 |
| Abstract | Trees located in riparian landscapes of boreal hydrosystems are directly exposed to spring floods. Injuries inflicted to these stems during floods (often carrying ice blocks or ice rafts) evolve under
the form of scars that can be dated by dendrochronology. The retrospective analysis of the frequency and height of these injuries can inform on the seasonality, intensity, and frequency of past high water levels. However, depending on the environment
in which these scars are found, different informations on hydrograph properties may be retrieved. Along rivers, trees located on flood-plains tend to be scarred during sudden early spring floods often associated with ice-jamming events. In lacustrine
environments, scar chronologies describe sequences of high water levels, which bring ice rafts in contact with riparian trees. Such discrete observations represent direct evidence of past hydrological events in cold-region rivers, and can be used
jointly with other proxies to constrain hydro-climatic reconstructions. |
| GEOSCAN ID | 328083 |
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