Articles | Volume 22, issue 8
https://doi.org/10.5194/hess-22-4593-2018
https://doi.org/10.5194/hess-22-4593-2018
Research article
 | 
30 Aug 2018
Research article |  | 30 Aug 2018

How good are hydrological models for gap-filling streamflow data?

Yongqiang Zhang and David Post

Data sets

Streamflow data Y. Zhang, N. Viney, A. Frost, A. Oke, M. Brooks, Y. Chen, N. Campbell https://doi.org/10.4225/08/58b5baad4fcc2

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Short summary
It is a critical step to gap-fill streamflow data for most hydrological studies, such as streamflow trend, flood, and drought analysis and predictions. However, quantitative evaluation of the gap-filled data accuracy is not available. Here we conducted the first comprehensive study, and found that when the missing data rate is less than 10 %, the gap-filled streamflow data using hydrological models are reliable for annual streamflow and its trend analysis.