To construct a map displaying human characteristics of an area, the best source would be a census survey. Census surveys provide detailed demographic data about the population, including information on age, gender, income, education, and ethnicity, which are essential for understanding human characteristics in a given region.
While a topography study could give insights into the physical characteristics of the land, and remote sensing might provide some data on land use or population density, the census survey specifically targets human attributes. Weather forecasts, on the other hand, are focused on atmospheric conditions and do not pertain to human characteristics.