Comparing paleo reconstructions of warm and cool season streamflow (1400–2018) for the North and South Saskatchewan River sub-basins, Western Canada

Samantha A. Kerr; Yuliya Andreichuk; David Sauchyn

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Comparing paleo reconstructions of warm and cool season streamflow (1400–2018) for the North and South Saskatchewan River sub-basins, Western Canada

机译：Comparing paleo reconstructions of warm and cool season streamflow (1400–2018) for the North and South Saskatchewan River sub-basins, Western Canada

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摘要

The North and South Saskatchewan River sub-basins comprise the Saskatchewan River Basin(SRB), which originates in the eastern slopes of the Rocky Mountains of Alberta (Canada) andMontana (USA), extending across the vast landscape of three Canadian Provinces. The SRB is themost populated region of the Northern Great Plains, where water demands from agriculture,industry, and municipalities can be a substantial proportion of supply during periods of lowflow and hydrological drought. Changing climatic conditions and shifts between periods ofextreme wet and dry weather emphasize the need for a better understanding of past and futureseasonal variability of the surface water balance within and between the sub-basins. Climateextremes, such as hydrological drought and excessive moisture conditions occurring simultaneouslycan create detrimental effects. Using a multi-species network of over 80 tree-ring chronologies,warm (May through August) and cool (December through April) season streamflow(1400–2018) were independently reconstructed for the North and South Saskatchewan Riversub-basins. Departures from seasonal flow and spectral and wavelet analyses of the reconstructionsindicate significant variability at inter-annual and multi-decadal scales.

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来源
《Canadian water resources journal》 |2023年第1期|50-66|共17页
作者
Samantha A. Kerr; Yuliya Andreichuk; David Sauchyn;
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作者单位

Department of Geography and Environmental Studies, University of Regina, Regina, Canada;

Prairie Adaptation Research Collaborative (PARC), University of Regina, Regina, Canada;

Department of Geography and Environmental Studies, University of Regina, Regina, Canada;

Prairie Adaptation Research Collaborative (PARC), University of Regina, Regina, Canada;

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正文语种英语
中图分类水文科学（水界物理学）;
关键词
Tree-rings; hydroclimatic variability; Saskatchewan River Basin (SRB); natural variability; climate change; dendrohydrology; Canadian Prairies;

Comparing paleo reconstructions of warm and cool season streamflow (1400–2018) for the North and South Saskatchewan River sub-basins, Western Canada

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