Fig. 1
Overview of the process to develop the groundwater well data. Data were collected from two projects of Geological Survey of Brazil: Groundwater Information System (SIAGAS)43 and Integrated Groundwater Monitoring Network Project (RIMAS)44. The data were harmonized (step 2) and then quality control was applied (step 3) to ensure that the records are accurate groundwater wells. When possible, groundwater well data were cross-verified and marked with a quality flag (step 4). In the end, the data were made available in tabular (csv) and geospatial formats (shapefile, and netCDF for monitoring wells). All of the steps were reviewed by members of the Geological Survey of Brazil. The inset map (top left) highlights Brazil within South America in green.
