Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1002/2017GL074376 |
River networks dampen long-term hydrological signals of climate change | |
Chezik, K. A.1; Anderson, S. C.2; Moore, J. W.1 | |
2017-07-28 | |
发表期刊 | GEOPHYSICAL RESEARCH LETTERS |
ISSN | 0094-8276 |
EISSN | 1944-8007 |
出版年 | 2017 |
卷号 | 44期号:14 |
文章类型 | Article |
语种 | 英语 |
国家 | Canada; USA |
英文摘要 | River networks may dampen local hydrologic signals of climate change through the aggregation of upstream climate portfolio assets. Here we examine this hypothesis using flow and climate trend estimates (1970-2007) at 55 hydrometric gauge stations and across their contributing watersheds' within the Fraser River basin in British Columbia, Canada. Using a null hypothesis framework, we compared our observed attenuation of river flow trends as a function of increasing area and climate trend diversity, with null-simulated estimates to gauge the likelihood and strength of our observations. We found the Fraser River reduced variability in downstream long-term discharge by >91%, with >3.1 times the attenuation than would be expected under null simulation. Although the strength of dampening varied seasonally, our findings indicate that large free-flowing rivers offer a powerful and largely unappreciated process of climate change mitigation. River networks that integrate a diverse climate portfolio can dampen local extremes and offer climate change relief to riverine biota. |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000407790500019 |
WOS关键词 | STABILITY ; FLOW ; DISTURBANCE ; RESOLUTION ; PEOPLE |
WOS类目 | Geosciences, Multidisciplinary |
WOS研究方向 | Geology |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/26688 |
专题 | 气候变化 |
作者单位 | 1.Simon Fraser Univ, Dept Biol Sci, Earth Ocean Res Grp, Burnaby, BC, Canada; 2.Univ Washington, Sch Aquat & Fishery Sci, Seattle, WA 98195 USA |
推荐引用方式 GB/T 7714 | Chezik, K. A.,Anderson, S. C.,Moore, J. W.. River networks dampen long-term hydrological signals of climate change[J]. GEOPHYSICAL RESEARCH LETTERS,2017,44(14). |
APA | Chezik, K. A.,Anderson, S. C.,&Moore, J. W..(2017).River networks dampen long-term hydrological signals of climate change.GEOPHYSICAL RESEARCH LETTERS,44(14). |
MLA | Chezik, K. A.,et al."River networks dampen long-term hydrological signals of climate change".GEOPHYSICAL RESEARCH LETTERS 44.14(2017). |
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