气候变化领域集成服务门户(CCPortal): A methodology to estimate flow duration curves at partially ungauged basins

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DOI	10.5194/hess-24-2043-2020
	A methodology to estimate flow duration curves at partially ungauged basins
	Ridolfi E.; Kumar H.; Bárdossy A.
发表日期	2020
ISSN	1027-5606
起始页码	2043
结束页码	2060
卷号	24 期号:4
英文摘要	The flow duration curve (FDC) of streamflow at a specific site has a key role in the knowledge on the distribution and characteristics of streamflow at that site. The FDC gives information on the water regime, providing information to optimally manage the water resources of the river. In spite of its importance, because of the lack of streamflow gauging stations, the FDC construction can be a not straightforward task. In partially gauged basins, FDCs are usually built using regionalization among the other methods. In this paper we show that the FDC is not a characteristic of the basin only, but of both the basin and the weather. Different weather conditions lead to different FDCs for the same catchment. The differences can often be significant. Similarly, the FDC built at a site for a specific period cannot be used to retrieve the FDC at a different site for the same time window. In this paper, we propose a new methodology to estimate FDCs at partially gauged basins (i.e., target sites) using precipitation data gauged at another basin (i.e., donor site). The main idea is that it is possible to retrieve the FDC of a target period of time using the data gauged during a given donor time period for which data are available at both target and donor sites. To test the methodology, several donor and target time periods are analyzed and results are shown for different sites in the USA. The comparison between estimated and actually observed FDCs shows the reasonability of the approach, especially for intermediate percentiles. © 2020 Author(s).
语种	英语
scopus关键词	Catchments; Electric network topology; Stream flow; Water resources; Flow duration curve; Gauging stations; Precipitation data; Reasonability; Specific sites; Time windows; Ungauged basins; Water regime; Information management; catchment; estimation method; flow measurement; gauge; hydrological regime; optimization; precipitation (climatology); regionalization; streamflow; water resource; United States
来源期刊	Hydrology and Earth System Sciences
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/159428
作者单位	Ridolfi, E., Department of Earth Sciences, Uppsala University, Uppsala, Sweden, Centre of Natural Hazards and Disaster Science, CNDS, Uppsala, Sweden; Kumar, H., Department of Biosystems Engineering, Auburn University, Auburn, AL, United States; Bárdossy, A., Institute of Hydraulic Engineering, University of Stuttgart, Stuttgart, Germany
推荐引用方式 GB/T 7714	Ridolfi E.,Kumar H.,Bárdossy A.. A methodology to estimate flow duration curves at partially ungauged basins[J],2020,24(4).
APA	Ridolfi E.,Kumar H.,&Bárdossy A..(2020).A methodology to estimate flow duration curves at partially ungauged basins.Hydrology and Earth System Sciences,24(4).
MLA	Ridolfi E.,et al."A methodology to estimate flow duration curves at partially ungauged basins".Hydrology and Earth System Sciences 24.4(2020).