globalchange  > 气候变化与战略
DOI: 10.5194/hess-24-5279-2020
论文题名:
Evaluating a landscape-scale daily water balance model to support spatially continuous representation of flow intermittency throughout stream networks
作者: Yu S.; Xuan Do H.; Van Dijk A.I.J.M.; Bond N.R.; Lin P.; Kennard M.J.
刊名: Hydrology and Earth System Sciences
ISSN: 1027-5606
出版年: 2020
卷: 24, 期:11
起始页码: 5279
结束页码: 5295
语种: 英语
Scopus关键词: Catchments ; Data streams ; Groundwater ; Rivers ; Stream flow ; Tropics ; Daily water balances ; Dynamic behaviours ; Environmental factors ; Intermittent streams ; Spatially explicit ; Streamflow modeling ; Subtropical regions ; Water balance models ; Climate models ; hydrological modeling ; spatial analysis ; stream ; throughfall ; water budget
英文摘要: There is a growing interest globally in the spatial distribution and temporal dynamics of intermittently flowing streams and rivers, and how this varies in relation to climatic and other environmental factors. However, biases in the distribution of stream gauges may give a misleading impression of spatialoral variations in streamflow intermittency within river networks. Here, we developed an approach to quantify catchment-wide streamflow intermittency over long time frames and in a spatially explicit manner, using readily accessible and spatially contiguous daily runoff data from a national-scale water balance model. We examined the ability of the water balance model to simulate streamflow in two hydro-climatically distinctive (subtropical and temperate) regions in Australia, with a particular focus on low-flow simulations. We also evaluated the effect of model time step (daily vs. monthly) on flow intermittency estimation to inform future model selection. The water balance model showed better performance in the temperate region characterised by steady baseflow than in the subtropical region with flashy hydrographs and frequent cease-to-flow periods. The model tended to overestimate low-flow magnitude mainly due to overestimation of gains (e.g. groundwater release to baseflow) during low-flow periods. Modelled patterns of flow intermittency revealed highly dynamic behaviour in space and time, with cease-to-flow events affecting between 29 and 80 % of the river network over the period of 1911-2016, using a daily streamflow model. The daily flow model did not perform better than the monthly flow model in quantifying flow intermittency at a monthly time step, and model selection should depend on the intended application of the model outputs. Our general approach to quantifying spatiooral patterns of flow intermittency is transferable to other parts of the world, and it can inform hydro-ecological understanding and management of intermittent streams where limited gauging data are available. © 2020 Author(s).
Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/162556
Appears in Collections:气候变化与战略

Files in This Item:

There are no files associated with this item.


作者单位: Yu, S., Australian Rivers Institute, School of Environment and Science, Griffith University, Nathan, QLD, Australia; Xuan Do, H., School of Civil Environmental and Mining Engineering, University of Adelaide, Adelaide, Australia, Faculty of Environment and Natural Resources, Nong Lam University, Ho Chi Minh City, Viet Nam, School for Environment and Sustainability, University of Michigan, Ann Arbor, MI, United States; Van Dijk, A.I.J.M., Fenner School of Environment and Society, Australian National University, Canberra, Australia, Australia; Bond, N.R., Centre for Freshwater Ecosystems, La Trobe University, Wodonga, VIC, Australia; Lin, P., Department of Civil and Environmental Engineering, Princeton University, Princeton, NJ, United States; Kennard, M.J., Australian Rivers Institute, School of Environment and Science, Griffith University, Nathan, QLD, Australia

Recommended Citation:
Yu S.,Xuan Do H.,Van Dijk A.I.J.M.,et al. Evaluating a landscape-scale daily water balance model to support spatially continuous representation of flow intermittency throughout stream networks[J]. Hydrology and Earth System Sciences,2020-01-01,24(11)
Service
Recommend this item
Sava as my favorate item
Show this item's statistics
Export Endnote File
Google Scholar
Similar articles in Google Scholar
[Yu S.]'s Articles
[Xuan Do H.]'s Articles
[Van Dijk A.I.J.M.]'s Articles
百度学术
Similar articles in Baidu Scholar
[Yu S.]'s Articles
[Xuan Do H.]'s Articles
[Van Dijk A.I.J.M.]'s Articles
CSDL cross search
Similar articles in CSDL Cross Search
[Yu S.]‘s Articles
[Xuan Do H.]‘s Articles
[Van Dijk A.I.J.M.]‘s Articles
Related Copyright Policies
Null
收藏/分享
所有评论 (0)
暂无评论
 

Items in IR are protected by copyright, with all rights reserved, unless otherwise indicated.