Annual maximum reservoir inflow records for Shimen, Feicui, Zengwen and Wushantou (2000-2025).

The inflow series were compiled from the Water Resources Agency, Ministry of Economic Affairs, Taiwan, and linked to major typhoon events using Central Weather Administration records where available.

Each file provides, for each reservoir and year, the annual maximum inflow (m³/s), the date of the maximum event, and the associated typhoon name when identified. The dataset supports uncertainty-aware flood-frequency analysis of annual-maximum inflows, including stationary and non-stationary fits of Gumbel, Log-Pearson Type III, and generalized extreme value models, as well as bootstrap- and simulation-based uncertainty quantification reported in the associated manuscript.