Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1002/2017WR021689 |
Water Flux Tracking With a Distributed Hydrological Model to Quantify Controls on the Spatiotemporal Variability of Transit Time Distributions | |
Remondi, Federica1; Kirchner, James W.2,3,4; Burlando, Paolo1; Fatichi, Simone1 | |
2018-04-01 | |
发表期刊 | WATER RESOURCES RESEARCH |
ISSN | 0043-1397 |
EISSN | 1944-7973 |
出版年 | 2018 |
卷号 | 54期号:4页码:3081-3099 |
文章类型 | Article |
语种 | 英语 |
国家 | Switzerland; USA |
英文摘要 | Water transit times and flow pathways are crucial elements in characterizing catchment hydrologic response. Understanding their variability in space and time sheds light on the link between discharge formation and water quality at the catchment scale. Here, we introduce a novel modeling framework to explore water transport mechanisms using the Hafren catchment in Wales (UK) as a case study. We show that a fully distributed hydrological model coupled with a transport component for conservative tracers is useful in analyzing how hydrometeorological conditions and spatial heterogeneity may affect water transit times and age distributions in a real catchment. We use the model to track the paths of water parcels that entered the catchment as rainfall over 2 years, labeling each day of rain individually. There is a reasonable agreement between tracer simulations and observations, suggesting that dynamic transit time distributions (TTDs) both forward and backward in time can be approximated using a high spatial and temporal resolution hydrochemical model, without assuming a priori any transit and storage selection functions at the catchment scale. TTDs are quantified for the modeled internal dynamics of the study catchment. TTDs conditional on a given rainfall time are mostly correlated to the season in which the rain event occurs, whereas TTDs conditional on a given exit time are mostly affected by catchment wetness. When TTDs for individual rainfall events are re-scaled as functions of cumulative discharge, they collapse around a single common distribution, suggesting a potential characteristic catchment function. |
英文关键词 | transit time distributions young water Plynlimon catchment scale tracer hydrological model |
领域 | 资源环境 |
收录类别 | SCI-E |
WOS记录号 | WOS:000434186400032 |
WOS关键词 | NESTED MESOSCALE CATCHMENT ; ACCESSIBLE DATA RESOURCE ; MID-WALES ; AGE DISTRIBUTIONS ; SOLUTE TRANSPORT ; RESIDENCE TIME ; STREAM WATER ; RIVER SEVERN ; ENVIRONMENTAL SYSTEMS ; PLYNLIMON CATCHMENTS |
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/21987 |
专题 | 资源环境科学 |
作者单位 | 1.ETH, Inst Environm Engn, Zurich, Switzerland; 2.ETH, Dept Environm Syst Sci, Zurich, Switzerland; 3.Swiss Fed Res Inst WSL, Birmensdorf, Switzerland; 4.Univ Calif Berkeley, Dept Earth & Planetary Sci, Berkeley, CA 94720 USA |
推荐引用方式 GB/T 7714 | Remondi, Federica,Kirchner, James W.,Burlando, Paolo,et al. Water Flux Tracking With a Distributed Hydrological Model to Quantify Controls on the Spatiotemporal Variability of Transit Time Distributions[J]. WATER RESOURCES RESEARCH,2018,54(4):3081-3099. |
APA | Remondi, Federica,Kirchner, James W.,Burlando, Paolo,&Fatichi, Simone.(2018).Water Flux Tracking With a Distributed Hydrological Model to Quantify Controls on the Spatiotemporal Variability of Transit Time Distributions.WATER RESOURCES RESEARCH,54(4),3081-3099. |
MLA | Remondi, Federica,et al."Water Flux Tracking With a Distributed Hydrological Model to Quantify Controls on the Spatiotemporal Variability of Transit Time Distributions".WATER RESOURCES RESEARCH 54.4(2018):3081-3099. |
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