TY  - Data
T1  - 1:100000 land oasis data set in Sangong River Basin, arid region of Northwest China (1970, 1990, 2000, 2010)
A1  - YanChangzhen
A1  - Changcui
DO  - 10.12072/ncdc.973Desert.db0008.2020
PY  - 2020
DA  - 2020-12-21
PB  - National Cryosphere Desert Data Center
AB  - This data set contains the oasis data of Sangong River Basin in 1970s, 1990s, 2000 and 2010. After the establishment of the interpretation mark, the oasis information can be extracted for image interpretation. In the process of interpretation, cbres image, land cover, auxiliary data and corresponding topographic map in corresponding period should be taken as the comprehensive information source, and the interpretation and analysis should be completed by professionals. In the attribute judgment of land cover type, the accuracy rate of water body, farmland and construction land should reach or exceed 90%, and that of other types should reach or exceed 80%. When drawing the type boundary, the error between the remote sensing image and the main types of land cover is generally less than 0.6 mm on the map, and the maximum error is no more than 1 mm on the map. Data file name: 1. Sangonghe Oasis (1) SG_ oasis_ 1970 （2）sg_ oasis_ 1990 (3）sg_ oasis_ 2000 （4）sg_ oasis_ two thousand and ten
DB  - NCDC
UR  - http://www.ncdc.ac.cn/portal/metadata/9e5806ce-7951-4347-ac00-126cbb7deeca
ER  -