College of Atmospheric Sciences;
Key Laboratory of Arid Climatic Change and Reducing Disaster of Gansu Province;
Lanzhou University;
Lanzhou 730000;
China;
State Key Laboratory of Atmospheric Boundary Layer Physics and Atmospheric Chemistry;
Institute of Atmospheric Physics;
Chinese Academy of Sciences;
Beijing 100029;
China;
College of Atmospheric Sciences;
Chengdu University of Information Technology;
Plateau Atmosphere and Environment Key Laboratory of Sichuan Province;
Chengdu 610225;
China;
Dunhuang Meteorological Bureau;
Dunhuang 736200;
China;
Dunhuang; AOD; Angstrom exponent; dust aerosol; anthropogenic aerosols;