A plurality of disparate datasets is aggregated into a geodata data structure specifying a plurality of geospatial locations and a set of aspatial parameters at each geospatial location. Each aspatial parameter is combined at each geospatial location to generate an atmospheric corrosivity scale parameter at each of the plurality of geospatial locations. A grid is created with cells representing each of the plurality of geospatial locations and each of the corresponding atmospheric corrosivity scale parameters. The grid is stored for output of at least a portion of the plurality of geospatial locations and the corresponding atmospheric corrosivity scale parameters overlaid on a geographic map.