Faculty of Geomatics;
Lanzhou Jiaotong University;
Lanzhou 730070;
China;
National-Local Joint Engineering Research Center of Technologies and Applications for National Geographic State Monitoring;
Lanzhou 730070;
China;
Gansu Provincial Engineering Laboratory for National Geographic State Monitoring;
Lanzhou 730070;
China;
Facility for Intelligent Decision Support;
Department of Civil and Environmental Engineering;
Western University;
London N6A 3K7;
Canada;
State Key Laboratory of Desert and Oasis Ecology;
Xinjiang Institute of Ecology and Geography;
Chinese Academy of Sciences;
Urumqi 830011;
China;
Qilian Alpine Ecology&Hydrology Research Station;
Key Laboratory of Ecohydrology of Inland River Basin;
Northwest Institute of Eco-Environment and Resources;
Chinese Academy of Sciences;
Lanzhou 730000;
China;
University of Chinese Academy of Sciences;
Beijing 100049;
China;
climate reconstruction; climate change; delta method; physical scaling method; artificial neural network(ANN); CRU dataset; CMIP5 dataset;