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TitleDetection of decadal and interdecadal oscillations and temporal trend analysis of climate and hydrological time series, Canadian Prairies
LicencePlease note the adoption of the Open Government Licence - Canada supersedes any previous licences.
AuthorChen, ZORCID logo; Grasby, S EORCID logo
SourceGeological Survey of Canada, Open File 5782, 2009, 13 pages, Open Access logo Open Access
PublisherNatural Resources Canada
Documentopen file
Mediaon-line; digital
File formatpdf
ProvinceAlberta; Saskatchewan; Manitoba
NTS62; 63; 72; 73; 74A; 74B; 74C; 74D; 74E; 74F; 82H; 82I; 82J; 82O; 82P; 83; 84
AreaAthabasca River; Canadian Prairies
Lat/Long WENS-120.0000 -95.0000 59.0000 49.0000
Subjectshydrogeology; Nature and Environment; rivers; watersheds; discharge rates; precipitation; temperature; hydrologic budget; hydrologic environment
Illustrationslocation maps; plots; graphs; histograms; tables
ProgramClimate Change Geoscience
Released2009 11 06
AbstractTo better understand the natural modes of discharge from the Athabasca River and perform an appropriate trend prediction for the sustainability study of the oilsand development in Alberta, long term instrumental records of annual river discharge, temperature, and precipitation time series from Canadian Prairie provinces were collected and analyzed for decadal and inter-decadal oscillation. Three types of methods, auto-correlation, composite method and spectral analysis, were applied to extract the long-term natural variation. Synthetic time series, consisting of known periodic components of different cycle length and magnitude, mixed with linear trend and red noise, were simulated and examined to help gain a better understanding of the behaviours of the quasi-periodic variation in the acquired real time series.

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