DOI: 10.5194/hess-23-3279-2019
论文题名: Replication of ecologically relevant hydrological indicators following a modified covariance approach to hydrological model parameterization
作者: Visser-Quinn A. ; Beevers L. ; Patidar S.
刊名: Hydrology and Earth System Sciences
ISSN: 1027-5606
出版年: 2019
卷: 23, 期: 8 起始页码: 3279
结束页码: 3303
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
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). Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/163096
Appears in Collections: 气候变化与战略
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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
Recommended Citation:
Visser-Quinn A.,Beevers L.,Patidar S.. Replication of ecologically relevant hydrological indicators following a modified covariance approach to hydrological model parameterization[J]. Hydrology and Earth System Sciences,2019-01-01,23(8)