Derived event-response and pump-controlled recovery data for a gravity-closed urban polder in the Taihu Plain

Analysis-ready derivative tables and reproducibility scripts supporting a monitoring-informed study of a gravity-closed urban polder in the Taihu Plain, China. The package contains the fixed 104-event rainfall-response table used for the main 12 h inter-event-time analysis, 316 primary pump-controlled drawdown and recovery endpoints at the 4.0 m³ s⁻¹ section-flow threshold, reported statistical summaries, field dictionaries, analysis scripts, and SHA-256 checksums. The scripts reproduce the principal and supporting Spearman associations, expanded partial Spearman results, and the primary Kaplan–Meier recovery summaries. The underlying 5 min monitoring database is excluded because it remains subject to project data-ownership conditions.