Data availability. All the data created in this study are openly available and the supplementary data can be downloaded from OneDrive (https://1drv.ms/u/s!AoYihVrJvSy3mmbdChBqEpJGeSnm?e=Uac9Op) or 师大云盘(https://pan.bnu.edu.cn/l/wJoOgE). Other data are available from the corresponding author upon reasonable request.
List of supplementary data
Script
IDL script for urban land simulation (see Supplementary Material 1 for details)
Python script for riverdischarge calculation (see Methods for details)
Shapefiles
Global catchments (Global_catchments_shp)
Global cities with population over 300,000 (Global_cities_over300k_shp)
Tables
Urban population for each catchment (Global_catchments_UrbanPopulation.xlsx)
Basline water withdrawal, water availability, water stress index, and water scarcity level for each cathment (Global_catchments_WSI_baseline.xlsx)
Water withdrawal, water availability, water stress index, and water scarcity level for each catchment in 2050 under four scenarios (Global_catchments_WSI_2050_SSPs&RCPs.xlsx)
Water withdrawal, water availability, water stress index, and water scarcity level for each cathment in 2050 for each GCMs under four scenarios (Global_catchments_WSI_2050_SSP1&RCP2.6_GCMs.xlsx, Global_catchments_WSI_2050_SSP2&RCP4.5_GCMs.xlsx, Global_catchments_WSI_2050_SSP3&RCP7.0_GCMs.xlsx, Global_catchments_WSI_2050_SSP5&RCP8.5_GCMs.xlsx)
Basline water scarcity level and the water scarcity level in 2050 under each scenairo and each GCMs for each city with population over 300,000 (Global_cities_over300k_WaterScarcity.xlsx)
Maps
Basline water scarcity and the water scarcity in 2050 under each scenario and each GCM for all catchments