Code and derived data for "Hazard-specific drivers of tropical-cyclone landslides and floods in Hong Kong"

Abstract

This record contains the analysis scripts and derived data for the manuscript "Which timing matters? Hazard-specific drivers of tropical-cyclone landslides and floods in Hong Kong, 1986–2024", submitted to Natural Hazards and Earth System Sciences. The study examines 61 tropical cyclones that passed within 200 km of Hong Kong during 1986–2024 and tests which aspects of storm timing control landslides, inland lowland flooding and coastal (sea-water) flooding. Contents:- Event-level flood coding (coastal, inland lowland and any reported flooding) with paraphrased evidence from the Hong Kong Observatory's annual "Tropical Cyclones" reports, and agreement between two coding passes.- Event × 1-km grid panel of gauge-based rainfall (95 GEO raingauges, inverse-distance interpolation), landslide counts, terrain and road density, and a rainstorm-day panel for 1984–2024.- Multi-station storm surge, maximum sea level and astronomical tide at the surge peak (HKO storm-surge database; HKO tide predictions and harmonic hindcast).- Model outputs (negative-binomial landslide models; Firth logistic flood models; robustness and leave-one-out tests).- Python scripts that reproduce all tables and figures of the manuscript and its Supplement. Third-party raw data (GEO landslide inventory and raingauge records, HKO data, IBTrACS, ERA5, UHSLC) are not redistributed; their sources are listed in README.md.