Areal Interpolation and Dasymetric Mapping Methods Using Local Ancillary Data Sources

This research contributes to the body of literature on areal interpolation and dasymetric mapping by introducing algorithms that make use of local ancillary dam sources The address weighting (AW) and parcel distribution (PD) methods are based on county address points and parcels The algrorithms can he effectively applied in rural and transitional areas where geographies are large and population counts are low These new methods were compared to existing algorithms that use nationally available land cover and Sheet. network datasets Compared with existing methods. the new methods yielded significant improvement in reducing estimate error lot Me study areas. Roth new methods succeeded ill maintaining high accuracy in both urban and rural areas The research presents opportunities for increasing the accuracy of both areal interpolation and dasymetric mapping in areas where accurate local data are available