Research on geographic information update index of RTK location big data

Abstract The research on RTK location big data is significant for updating geographic information and for the application of location big data. In this paper, we used the HNCORS RTK location big data from 2016–2018 to establish the user spatial activity index. We then analysed the correlation between the user spatial activity index and the remote sensing change patch data in Hunan Province. The results indicate a significant correlation between the user spatial activity index and remote sensing patch change data in most districts and counties of Hunan Province. Additionally, RTK user active areas coincide with geographic information change areas. This paper uses HNCORS RTK location big data to construct a model of geographic information updating index in Hunan Province. The model provides a decision-making basis for geographic information updating and remote sensing image coordination in the province.