[1] Chinese Acad Sci, Northeast Inst Geog & Agroecol, Changchun 130102, Peoples R China
[2] Jilin Jianzhu Univ, Sch Geomat & Prospecting Engn, Changchun 130118, Peoples R China
[3] Natl Earth Syst Sci Data Ctr, Beijing 100101, Peoples R China
[4] Changchun Municipal Engn Design & Res Inst, Changchun 130022, Peoples R China