气候变化领域集成服务门户(CCPortal): Sensitivity analysis of hydrological models: Review and way forward

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DOI	10.2166/wcc.2017.149
	Sensitivity analysis of hydrological models: Review and way forward
	Devak M.; Dhanya C.T.
发表日期	2017
ISSN	20402244
起始页码	557
结束页码	575
卷号	8 期号:4
英文摘要	Different hydrological models provide diverse perspectives of the system being modeled, and inevitably, are imperfect representations of reality. Irrespective of the choice of models, the major source of error in any hydrological modeling is the uncertainty in the determination of model parameters, owing to the mismatch between model complexity and available data. Sensitivity analysis (SA) methods help to identify the parameters that have a strong impact on the model outputs and hence influence the model response. In addition, SA assists in analyzing the interaction between parameters, its preferable range and its spatial variability, which in turn influence the model outcomes. Various methods are available to perform SA and the perturbation technique varies widely. This study attempts to categorize the SA methods depending on the assumptions and methodologies involved in various methods. The pros and cons associated with each SA method are discussed. The sensitivity pertaining to the impact of space and time resolutions on model results is highlighted. The applicability of different SA approaches for various purposes is understood. This study further elaborates the objectives behind selection and application of SA approaches in hydrological modeling, hence providing valuable insights on the limitations, knowledge gaps, and future research directions. © IWA Publishing 2017.
英文关键词	Distributed modeling; Local and global sensitivity; Parameter interaction; Spatio-temporal sensitivity; Uncertainty
语种	英语
scopus关键词	Hydrology; Perturbation techniques; Uncertainty analysis; Distributed modeling; Global sensitivity; Parameter interactions; Spatio-temporal sensitivity; Uncertainty; Sensitivity analysis; hydrological modeling; sensitivity analysis; spatial variation; spatiotemporal analysis; uncertainty analysis
来源期刊	Journal of Water and Climate Change
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/148092
作者单位	Department of Civil Engineering, Indian Institute of Technology Delhi, Hauz Khas, New Delhi, 110016, India
推荐引用方式 GB/T 7714	Devak M.,Dhanya C.T.. Sensitivity analysis of hydrological models: Review and way forward[J],2017,8(4).
APA	Devak M.,&Dhanya C.T..(2017).Sensitivity analysis of hydrological models: Review and way forward.Journal of Water and Climate Change,8(4).
MLA	Devak M.,et al."Sensitivity analysis of hydrological models: Review and way forward".Journal of Water and Climate Change 8.4(2017).