Guangzhou Institute of Geochemistry;
Chinese Academy of Sciences;
Guangzhou 510640;
China;
Guangzhou Institute of Geography;
Guangzhou 510070;
China;
University of Chinese Academy of Sciences;
Beijing 100049;
China;
Key Laboratory of Guangdong for Utilization of Remote Sensing and Geographical Information System;
Guangzhou 510070;
China;
Guangdong Open Laboratory of Geospatial Information Technology and Application;
Guangzhou 510070;
China;
impervious; surface; fraction; linear; spectral; mixture; analysis; nighttime; light; kernel; density; profile; graph;