Residential overheating vulnerability prioritisation dataset — Belgium arrondissement level (2050 and 2085)

This dataset contains arrondissement-level data for Belgium covering observational bias correction of CORDEX.be climate projections, residential heat exposure estimates, vulnerability indicators, priority classifications, and stability analysis results for two heat exposure indicators (T30 and nHeatwaves) and two time horizons (2050 and 2085).

Files included: 01_Bias_correction_RMI_CORDEX.xlsx — ratio-based observational calibration using RMI automatic weather station data against CORDEX.be 2020 baseline, by geoclimatic zone (Coastal, Inland, Highland). 02_Residential_exposure.xlsx — arrondissement-level exposure proportions and estimated exposed dwelling counts for T30 and nHeatwaves. 03_Vulnerability_indicators_T30.xlsx — Elderly Exposure Index (EEI) and Housing Vulnerability Index (HVI) for T30 indicator. 04_Vulnerability_indicators_nHeatwaves.xlsx — EEI and HVI for nHeatwaves indicator. 05_Priority_classification.xlsx — composite priority index and priority class (High, Medium, Low) for all arrondissements under both indicators and time horizons. 06_Stability_analysis_cross_time.xlsx — priority class comparison between 2050 and 2085 for each indicator, including transition matrices. 07_Stability_analysis_cross_indicators.xlsx — priority class comparison between T30 and nHeatwaves at each time horizon, including transition matrices.

Note: Belgium comprises 43 official arrondissements. In this dataset, Tournai and Mouscron are treated as a single combined unit (Tournai / Mouscron) following the administrative merger reflected in Statbel demographic and housing data, resulting in 42 spatial units throughout the vulnerability and priority classification files. Residential exposure files retain the full 43-unit structure consistent with the climate indicator source data.

Climate indicator data sourced from Geo.be (Belgian federal geodata portal). Observational data sourced from the Royal Meteorological Institute of Belgium (RMI). Demographic and housing data sourced from Statbel (Statistics Belgium, 2024).