Water Availability under Climate Change Scenarios for MRSP, Brazil

Metropolitan regions face increasing water-security challenges driven by population growth, urbanization, and climate change. This dataset supports the assessment of long-term reliability and supply capacity of the Metropolitan Supply System (MSS) of the Metropolitan Region of São Paulo (MRSP), Brazil, under future climate uncertainty. It includes geospatial data for the study area, basic network-flow assets for water-allocation modelling, and historical and climate-informed flow series for network nodes and reservoirs. Future scenarios were derived from five general circulation models (GCMs) under the SSP2-4.5 and SSP5-8.5 pathways, after downscaling and bias correction. The repository also provides baseline and scenario-specific network files used in the simulations. These data can support reproducibility, scenario analysis, and further studies on urban water-supply planning under climate change.