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

IF 16.4 1区化学 Q1 CHEMISTRY, MULTIDISCIPLINARY

Accounts of Chemical Research Pub Date : 2022-12-15 DOI:10.1080/07011784.2022.2154170

Samantha A. Kerr, Y. Andreichuk, D. Sauchyn

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引用次数: 1

Abstract

Abstract 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) and Montana (USA), extending across the vast landscape of three Canadian Provinces. The SRB is the most 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 low flow and hydrological drought. Changing climatic conditions and shifts between periods of extreme wet and dry weather emphasize the need for a better understanding of past and future seasonal variability of the surface water balance within and between the sub-basins. Climate extremes, such as hydrological drought and excessive moisture conditions occurring simultaneously can 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 River sub-basins. Departures from seasonal flow and spectral and wavelet analyses of the reconstructions indicate significant variability at inter-annual and multi-decadal scales.

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比较加拿大西部萨斯喀彻温河北部和南部子流域暖季和冷季流量的古重建(1400-2018)

北和南萨斯喀彻温河子盆地包括萨斯喀彻温河流域(SRB)，它起源于阿尔伯塔省(加拿大)和蒙大拿州(美国)落基山脉的东部斜坡，横跨加拿大三个省的广阔景观延伸。SRB是北部大平原人口最多的地区，在低流量和水文干旱时期，农业、工业和市政用水需求可能占供应的很大比例。不断变化的气候条件和极端潮湿和干燥天气之间的变化，强调需要更好地了解各子流域内部和流域之间地表水平衡的过去和未来的季节性变化。极端气候，如水文干旱和过度潮湿条件同时发生，会产生不利影响。利用80多个树木年轮年表的多物种网络，独立重建了萨斯喀彻温河南北子流域暖季(5月至8月)和冷季(12月至4月)的流量(1400-2018)。与季节流量和重建的谱和小波分析不同，表明在年际和多年代际尺度上存在显著的变化。

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来源期刊

Accounts of Chemical Research 化学-化学综合

CiteScore

31.40

自引率

1.10%

发文量

312

审稿时长

2 months

期刊介绍： Accounts of Chemical Research presents short, concise and critical articles offering easy-to-read overviews of basic research and applications in all areas of chemistry and biochemistry. These short reviews focus on research from the author’s own laboratory and are designed to teach the reader about a research project. In addition, Accounts of Chemical Research publishes commentaries that give an informed opinion on a current research problem. Special Issues online are devoted to a single topic of unusual activity and significance. Accounts of Chemical Research replaces the traditional article abstract with an article "Conspectus." These entries synopsize the research affording the reader a closer look at the content and significance of an article. Through this provision of a more detailed description of the article contents, the Conspectus enhances the article's discoverability by search engines and the exposure for the research.