1200 years of Upper Missouri River streamflow reconstructed from tree rings

QUATERNARY SCIENCE REVIEWS

卷:224

Article

Martin, Justin T.¹  Pederson, Gregory T.¹  Woodhouse, Connie A.^2,3  Cook, Edward R.⁴  McCabe, Gregory J.⁵  Wise, Erika K.⁶  Erger, Patrick⁷  Dolan, Larry⁸  McGuire, Marketa⁹  Gangopadhyay, Subhrendu⁹  Chase, Katherine¹⁰  Littell, Jeremy S.¹¹  Gray, Stephen T.¹¹  St George, Scott¹²  Friedman, Jonathan¹³  Sauchyn, Dave¹⁴  St Jacques, Jeannine¹⁵  King, John¹⁶ 

[1] US Geol Survey, Northern Rocky Mt Sci Ctr, Bozeman, MT 59717 USA

[2] Univ Arizona, Sch Geog & Dev, Tucson, AZ USA

[3] Univ Arizona, Tree Ring Res Lab, Tucson, AZ 85721 USA

[4] Lamont Doherty Earth Observ, Palisades, NY USA

[5] US Geol Survey, Div Water Resources, Box 25046, Denver, CO 80225 USA

[6] Univ N Carolina, Dept Geog, Chapel Hill, NC 27515 USA

[7] US Bur Reclamat, Great Plains Reg Off, Billings, MT USA

[8] Montana Dept Nat Resources & Conservat, Helena, MT USA

[9] US Bur Reclamat, Tech Serv Ctr, Denver, CO 80225 USA

[10] US Geol Survey, Wyoming Montana Water Sci Ctr, Helena, MT USA

[11] US Geol Survey, Alaska Climate Adaptat Sci Ctr, Anchorage, AK USA

[12] Univ Minnesota, Dept Geog Environm & Soc, Minneapolis, MN USA

[13] US Geol Survey, Ft Collins Sci Ctr, Ft Collins, CO USA

[14] Univ Regina, Dept Geog & Environm Studies, Regina, SK, Canada

[15] Concordia Univ, Dept Geog Planning & Environm, Montreal, PQ, Canada

[16] Lone Pine Res, Bozeman, MT USA

关键词: Holocene;    Paleoclimatology;    North America;    Tree-rings;    Streamflow;    Upper Missouri River;    Reconstruction;   

DOI  :  10.1016/j.quascirev.2019.105971

来源: Elsevier

【 摘 要 】

Paleohydrologic records can provide unique, long-term perspectives on streamflow variability and hydroclimate for use in water resource planning. Such long-term records can also play a key role in placing both present day events and projected future conditions into a broader context than that offered by instrumental observations. However, relative to other major river basins across the western United States, a paucity of streamflow reconstructions has to date prevented the full application of such paleohydrologic information in the Upper Missouri River Basin. Here we utilize a set of naturalized streamflow records for the Upper Missouri and an expanded network of tree-ring records to reconstruct streamflow at thirty-one gaging locations across the major headwaters of the basin. The reconstructions explain an average of 68% of the variability in the observed streamflow records and extend available records of streamflow back to 886 CE on average. Basin-wide analyses suggest unprecedented hydroclimatic variability over the region during the Medieval period, similar to that observed in the Upper Colorado River Basin, and show considerable synchrony of persistent wet-dry phasing with the Colorado River over the last 1200 years. Streamflow estimates in individual sub-basins of the Upper Missouri demonstrate increased spatial variability in discharge during the Little Ice Age (similar to 1400-1850 CE) compared with the Medieval Climate Anomaly (similar to 800-1400 CE). The network of streamflow reconstructions presented here fills a major geographical void in paleohydrologic understanding and now allows for a long-term assessment of hydrological variability over the majority of the western U.S. Published by Elsevier Ltd.

【 授权许可】

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