Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1002/2016WR020108 |
Changes in cold region flood regimes inferred from long-record reference gauging stations | |
Burn, Donald H.1; Whitfield, Paul H.2,3 | |
2017-04-01 | |
发表期刊 | WATER RESOURCES RESEARCH
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ISSN | 0043-1397 |
EISSN | 1944-7973 |
出版年 | 2017 |
卷号 | 53期号:4 |
文章类型 | Article |
语种 | 英语 |
国家 | Canada |
英文摘要 | Variability and nonstationarity in flood regimes of cold regions are examined using data from hydrometric reference streamflow gauging stations from 27 natural watersheds in Canada and adjacent areas of the United States. Choosing stations from reference networks with nearly 100 years of data allows for the investigation of changes that span several phases of some of the atmospheric drivers that may influence flood behavior. The reference hydrologic networks include only stations considered to have good quality data and were screened to avoid the influences of regulation, diversions, or land use change. Changes and variations in flood regimes are complex and require a multifaceted approach to properly characterize the types of changes that have occurred and are likely to occur in the future. Peaks over threshold (POT) data are extracted from daily flow data for each watershed, and changes to the magnitude, timing, frequency, volume, and duration of threshold exceedences are investigated. Seasonal statistics are used to explore changes in the nature of the flood regime based on changes in the timing of flood threshold exceedences. A variety of measures are developed to infer flood regime shifts including from a nival regime to a mixed regime and a mixed regime to a more pluvial-dominated regime. The flood regime at many of the watersheds demonstrates increased prominence of rainfall floods and decreased prevalence of snow-melt contributions to flood responses. While some individual stations show a relationship between flood variables and climate indices, these relationships are generally weak. |
领域 | 资源环境 |
收录类别 | SCI-E |
WOS记录号 | WOS:000403682600009 |
WOS关键词 | REFERENCE HYDROLOGIC NETWORKS ; EL-NINO ; TRENDS ; PROJECTIONS ; STREAMFLOW ; MAGNITUDE ; FREQUENCY ; CANADA ; IDENTIFICATION ; OSCILLATION |
WOS类目 | Environmental Sciences ; Limnology ; Water Resources |
WOS研究方向 | Environmental Sciences & Ecology ; Marine & Freshwater Biology ; Water Resources |
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/20855 |
专题 | 资源环境科学 |
作者单位 | 1.Univ Waterloo, Dept Civil & Environm Engn, Waterloo, ON, Canada; 2.Univ Saskatchewan, Ctr Hydrol, Canmore, AB, Canada; 3.Simon Fraser Univ, Dept Earth Sci, Burnaby, BC, Canada |
推荐引用方式 GB/T 7714 | Burn, Donald H.,Whitfield, Paul H.. Changes in cold region flood regimes inferred from long-record reference gauging stations[J]. WATER RESOURCES RESEARCH,2017,53(4). |
APA | Burn, Donald H.,&Whitfield, Paul H..(2017).Changes in cold region flood regimes inferred from long-record reference gauging stations.WATER RESOURCES RESEARCH,53(4). |
MLA | Burn, Donald H.,et al."Changes in cold region flood regimes inferred from long-record reference gauging stations".WATER RESOURCES RESEARCH 53.4(2017). |
条目包含的文件 | 条目无相关文件。 |
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