Data and code for Spatiotemporal dynamics and driving mechanisms of urbanization–flood hazard spatial association in a typical coastal urban agglomeration

This dataset supports the manuscript entitled “Spatiotemporal dynamics and driving mechanisms of urbanization–flood hazard spatial association in a typical coastal urban agglomeration”. It provides processed analytical datasets, model outputs, figure data, and scripts used to examine the spatiotemporal dynamics and driving mechanisms of Urbanization–Flood Hazard Spatial Association Strength (UFH-SAS) in the Yangtze River Delta from 2000 to 2020. The shared files include data supporting flood hazard assessment, UFH-SAS calculation, category transition analysis, XGBoost-SHAP interpretation, GeoDetector analysis, and geographically weighted regression. Raw third-party raster and vector datasets are not redistributed here because they were obtained from publicly available sources listed in the manuscript and may be subject to their original data licenses and file-size limitations.