Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1002/joc.4954 |
On the impact of gaps on trend detection in extreme streamflow time series | |
Slater, Louise; Villarini, Gabriele | |
2017-08-01 | |
发表期刊 | INTERNATIONAL JOURNAL OF CLIMATOLOGY
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ISSN | 0899-8418 |
EISSN | 1097-0088 |
出版年 | 2017 |
卷号 | 37期号:10 |
文章类型 | Article |
语种 | 英语 |
国家 | USA |
英文摘要 | Streamflow time series often contain gaps of varying length and location. However, the influence of these gaps on trend detection is poorly understood and cannot be estimated a priori in trend detection studies. We simulated the effects of varying gap size (1, 2, 5, and 10years) and location (one quarter, one third, and half of the way) on the detection rate of significant monotonic trends in annual maxima and peaks-over-threshold, based on the most commonly-used trend tests in time series of varying length (from 15 to 150years) and trend magnitude ((1)). Results show that, in comparison with the complete time series, the loss in trend detection rate tends to grow with (1) increasing gap size, (2) increasing gap distance from the middle of the time series, (3) decreasing (1) slope, and (4) decreasing time series length. Based on these findings, we provide objective recommendations and cautionary remarks for maximal gap allowance in trend detection in extreme streamflow time series. |
英文关键词 | gaps trend detection annual maximum peak-over-threshold time series analysis |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000406706200018 |
WOS关键词 | RIVER FLOW ; ABRUPT CHANGES ; FREQUENCY ; RECORDS ; PRECIPITATION ; STATIONARITY ; UNCERTAINTY ; MODELS ; FUTURE |
WOS类目 | Meteorology & Atmospheric Sciences |
WOS研究方向 | Meteorology & Atmospheric Sciences |
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/37397 |
专题 | 气候变化 |
作者单位 | Univ Iowa, IIHR Hydrosci & Engn, Iowa City, IA 52242 USA |
推荐引用方式 GB/T 7714 | Slater, Louise,Villarini, Gabriele. On the impact of gaps on trend detection in extreme streamflow time series[J]. INTERNATIONAL JOURNAL OF CLIMATOLOGY,2017,37(10). |
APA | Slater, Louise,&Villarini, Gabriele.(2017).On the impact of gaps on trend detection in extreme streamflow time series.INTERNATIONAL JOURNAL OF CLIMATOLOGY,37(10). |
MLA | Slater, Louise,et al."On the impact of gaps on trend detection in extreme streamflow time series".INTERNATIONAL JOURNAL OF CLIMATOLOGY 37.10(2017). |
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