气候变化领域集成服务门户(CCPortal): Replication of ecologically relevant hydrological indicators following a modified covariance approach to hydrological model parameterization

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DOI	10.5194/hess-23-3279-2019
	Replication of ecologically relevant hydrological indicators following a modified covariance approach to hydrological model parameterization
	Visser-Quinn A.; Beevers L.; Patidar S.
发表日期	2019
ISSN	1027-5606
起始页码	3279
结束页码	3303
卷号	23 期号:8
英文摘要	Hydrological models can be used to assess the impact of hydrologic alteration on the river ecosystem. However, there are considerable limitations and uncertainties associated with the replication of ecologically relevant hydrological indicators. Vogel and Sankarasubramanian's 2003 (Water Resources Research) covariance approach to model evaluation and parameterization represents a shift away from algorithmic model calibration with traditional performance measures (objective functions). Using the covariance structures of the observed input and simulated output time series, it is possible to assess whether the selected hydrological model is able to capture the relevant underlying processes. From this plausible parameter space, the region of parameter space which best captures (replicates) the characteristics of a hydrological indicator may be identified. In this study, a modified covariance approach is applied to five hydrologically diverse case study catchments with a view to replicating a suite of ecologically relevant hydrological indicators identified through catchment-specific hydroecological models. The identification of the plausible parameter space (here n ≈20) is based on the statistical importance of these indicators. Evaluation is with respect to performance and consistency across each catchment, parameter set, and the 40 ecologically relevant hydrological indicators considered. Timing and rate of change indicators are the best and worst replicated respectively. Relative to previous studies, an overall improvement in consistency is observed. This study represents an important advancement towards the robust application of hydrological models for ecological flow studies. © 2019 Author(s).
语种	英语
scopus关键词	Catchments; Climate models; Ecosystems; Runoff; Covariance structures; Hydrologic alterations; Hydrological indicators; Hydrological modeling; Hydrological models; Objective functions; Performance measure; Robust application; Parameter estimation; algorithm; calibration; catchment; hydrological modeling; numerical model; parameterization; performance assessment; time series; uncertainty analysis
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/159813
作者单位	Visser-Quinn, A., Institute for Infrastructure and Environment, Heriot-Watt University, Edinburgh, EH14 4AS, United Kingdom; Beevers, L., Institute for Infrastructure and Environment, Heriot-Watt University, Edinburgh, EH14 4AS, United Kingdom; Patidar, S., Institute for Infrastructure and Environment, Heriot-Watt University, Edinburgh, EH14 4AS, United Kingdom
推荐引用方式 GB/T 7714	Visser-Quinn A.,Beevers L.,Patidar S.. Replication of ecologically relevant hydrological indicators following a modified covariance approach to hydrological model parameterization[J],2019,23(8).
APA	Visser-Quinn A.,Beevers L.,&Patidar S..(2019).Replication of ecologically relevant hydrological indicators following a modified covariance approach to hydrological model parameterization.Hydrology and Earth System Sciences,23(8).
MLA	Visser-Quinn A.,et al."Replication of ecologically relevant hydrological indicators following a modified covariance approach to hydrological model parameterization".Hydrology and Earth System Sciences 23.8(2019).