Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1029/2020WR029001 |
The abuse of popular performance metrics in hydrologic modeling | |
Martyn P. Clark; Richard M. Vogel; Jonathan R. Lamontagne; Naoki Mizukami; Wouter J.M. Knoben; Guoqiang Tang; Shervan Gharari; Jim E. Freer; Paul H. Whitfield; Kevin Shook; Simon Papalexiou | |
2021-08-02 | |
发表期刊 | Water Resources Research
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出版年 | 2021 |
英文摘要 | The goal of this commentary is to critically evaluate the use of popular performance metrics in hydrologic modeling. We focus on the Nash-Sutcliffe Efficiency (NSE) and the Kling-Gupta Efficiency (KGE) metrics, which are both widely used in hydrologic research and practice around the world. Our specific objectives are: (1) to provide tools that quantify the sampling uncertainty in popular performance metrics; (2) to quantify sampling uncertainty in popular performance metrics across a large sample of catchments; and (3) to prescribe the further research that is needed to improve the estimation, interpretation, and use of popular performance metrics in hydrologic modeling. Our large-sample analysis demonstrates that there is substantial sampling uncertainty in the NSE and KGE estimators. This occurs because the probability distribution of squared errors between model simulations and observations has heavy tails, meaning that performance metrics can be heavily influenced by just a few data points. Our results highlight obvious (yet ignored) abuses of performance metrics that contaminate the conclusions of many hydrologic modeling studies: It is essential to quantify the sampling uncertainty in performance metrics when justifying the use of a model for a specific purpose and when comparing the performance of competing models. This article is protected by copyright. All rights reserved. |
领域 | 资源环境 |
URL | 查看原文 |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/335438 |
专题 | 资源环境科学 |
推荐引用方式 GB/T 7714 | Martyn P. Clark,Richard M. Vogel,Jonathan R. Lamontagne,et al. The abuse of popular performance metrics in hydrologic modeling[J]. Water Resources Research,2021. |
APA | Martyn P. Clark.,Richard M. Vogel.,Jonathan R. Lamontagne.,Naoki Mizukami.,Wouter J.M. Knoben.,...&Simon Papalexiou.(2021).The abuse of popular performance metrics in hydrologic modeling.Water Resources Research. |
MLA | Martyn P. Clark,et al."The abuse of popular performance metrics in hydrologic modeling".Water Resources Research (2021). |
条目包含的文件 | 条目无相关文件。 |
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