The Analysis of Expansion Characteristics of Prefecture-Level Urban Built-Up Areas in Jiangxi Province Based on Nighttime Light Data
To study the expansion of built-up areas in Jiangxi Province's prefectural-level cities,we utilized original nighttime light data from Jiangxi Province spanning the years 2005 to 2020.We employed a reference comparison method to extract the built-up area.Data accuracy verification at the provincial level demonstrated an accuracy rate exceeding 97％,confirming the reliability of nighttime light data for the extraction of urban built-up areas.These extraction re-sults are available for research on the expansion of built-up areas in the prefectural-level cities of Jiangxi Province.Furthermore,an analysis of the temporal characteristics of urban built-up area expansion in Jiangxi Province from 2005 to 2020,including expansion area,speed,dynamics,and intensity,was conducted to explore the characteristics of built-up area expansion in various pre-fectural-level cities.
万方数据
维普
