A Study On The User Behavior And Emerging Trends Of Nighttime Light Data Based On Luojia 1-01

The night light remote sensing image has a good application and reference value to measure the development of city and regional economy.Luojia 1-01 is the first professional night light remote sensing satellite in China developed by Wuhan University,which provides a new data source choice for night light application research.It is of great significance to understand the downloading behavior characteristics of image data users for the realization of efficient and accurate remote sensing image sharing services.Through the analysis of the downloading log of satellite image users,we can explore the downloading behavior characteristics,research characteristics and emerging trends of different users in the application of night light remote sensing.This paper explores the spatial relationship between the downloading of night light image data and users by means of spatial analysis and physical statistical analysis,using the downloading log of Chinese users to the satellite,analyzes the correlation between the downloading amount of users and the number of universities and scientific research&development funds in the region,and explores the downloading behavior characteristics of platform users and the downloading of data users in the time dimension Behavior is described and summarized from the perspective of time and space,and its influencing factors are explored.The research shows that the number of colleges and universities and the increase of scientific research funds have a positive driving effect on the download volume.Users from colleges and universities,research institutes and other scientific research institutions tend to download in the afternoon and at night,and it is found that the download volume is contributed by a small number of users,while the rest are in a silent state.Finally,This paper aims to map the spatio-temporal patterns of the imagery download,study types and mobility using the aggregated data.By creating a new indicator and using data matrix approach,the geographical patterns from these maps have revealed the shift of spatial studies from economically wealthy eastern to less developed western regions,and the research direction is inclined analysis of regional poverty.