Articles | Volume 22, issue 8
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

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.