Compiling methods of large-area aeromagnetic map based on multiple data sources

摘要

In this paper, the authors have conducted a research on the compiling methods and technologies of large-area aeromagnetic maps with aeromagnetic data collected in different times, according to different scales, at different flying altitudes, with different surveying instruments, and of different qualities and precision. The focus of this research is on the standardized processing technique of data in independent survey areas, the splicing methods and splicing principles of grids, and the high-precision control framework grid technology which retains the magnetic field information of lithosphere. With the 1:1,000,000 Chinese land area aeromagnetic map as an example, the authors have conducted a positive probe into the mapping methods and mapping effects.