Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1002/2016WR019856 |
Groundwater similarity across a watershed derived from time-warped and flow-corrected time series | |
Rinderer, M.1,2; McGlynn, B. L.1; van Meerveld, H. J.3 | |
2017-05-01 | |
发表期刊 | WATER RESOURCES RESEARCH |
ISSN | 0043-1397 |
EISSN | 1944-7973 |
出版年 | 2017 |
卷号 | 53期号:5 |
文章类型 | Article |
语种 | 英语 |
国家 | USA; Germany; Switzerland |
英文摘要 | Information about catchment-scale groundwater dynamics is necessary to understand how catchments store and release water and why water quantity and quality varies in streams. However, groundwater level monitoring is often restricted to a limited number of sites. Knowledge of the factors that determine similarity between monitoring sites can be used to predict catchment-scale groundwater storage and connectivity of different runoff source areas. We used distance-based and correlation-based similarity measures to quantify the spatial and temporal differences in shallow groundwater similarity for 51 monitoring sites in a Swiss prealpine catchment. The 41 months long time series were preprocessed using Dynamic Time-Warping and a Flow-corrected Time Transformation to account for small timing differences and bias toward low-flow periods. The mean distance-based groundwater similarity was correlated to topographic indices, such as upslope contributing area, topographic wetness index, and local slope. Correlation-based similarity was less related to landscape position but instead revealed differences between seasons. Analysis of variance and partial Mantel tests showed that landscape position, represented by the topographic wetness index, explained 52% of the variability in mean distance-based groundwater similarity, while spatial distance, represented by the Euclidean distance, explained only 5%. The variability in distance-based similarity and correlation-based similarity between groundwater and streamflow time series was significantly larger for midslope locations than for other landscape positions. This suggests that groundwater dynamics at these midslope sites, which are important to understand runoff source areas and hydrological connectivity at the catchment scale, are most difficult to predict. |
英文关键词 | groundwater dynamics landscape position topography hydrological similarity Dynamic Time Warping flow-corrected time transformation time series hydrological connectivity |
领域 | 资源环境 |
收录类别 | SCI-E |
WOS记录号 | WOS:000403712100025 |
WOS关键词 | DISSOLVED ORGANIC-CARBON ; SOIL-MOISTURE PATTERNS ; TOPOGRAPHIC CONTROLS ; HEADWATER CATCHMENT ; SHALLOW GROUNDWATER ; RUNOFF GENERATION ; HYDROLOGIC CONNECTIVITY ; SUBSURFACE FLOW ; RIPARIAN ZONES ; HYDROPEDOLOGICAL UNITS |
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/21778 |
专题 | 资源环境科学 |
作者单位 | 1.Duke Univ, Nicholas Sch Environm, Durham, NC 27708 USA; 2.Univ Freiburg, Chair Hydrol, Freiburg, Germany; 3.Univ Zurich, Dept Geog, Zurich, Switzerland |
推荐引用方式 GB/T 7714 | Rinderer, M.,McGlynn, B. L.,van Meerveld, H. J.. Groundwater similarity across a watershed derived from time-warped and flow-corrected time series[J]. WATER RESOURCES RESEARCH,2017,53(5). |
APA | Rinderer, M.,McGlynn, B. L.,&van Meerveld, H. J..(2017).Groundwater similarity across a watershed derived from time-warped and flow-corrected time series.WATER RESOURCES RESEARCH,53(5). |
MLA | Rinderer, M.,et al."Groundwater similarity across a watershed derived from time-warped and flow-corrected time series".WATER RESOURCES RESEARCH 53.5(2017). |
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