Data content: the data set is the domestic high score series (GF1 / 2 / 3 / 4) historical archive satellite data from 2015 to 2020 in the key rivers and lakes research area of Qinghai Tibet Plateau, which can cover typical rivers and lakes for effective monitoring, and the time range of data is 2015-2020. Data source and processing method: the data is a level 1 image product. After equalization radiometric correction, the changes affecting the sensor are corrected through the equalization function of different detectors. Some data are based on the landsat8 image of the same period as the base map, and the control points are selected for image geometry correction. Then the ortho rectification is carried out based on the DEM data, The corresponding data are processed by band fusion. Data quality description: the high score series satellites are processed by China Resources Satellite Application Center, the original data received by the satellite ground station of CASS and the products at all levels formed by processing. Among them, level 1a (preprocessing level radiometric correction image product): image data processed by data analysis, homogenization radiometric correction, denoising, MTFC, CCD splicing, band registration, etc; And provide the RPC file of satellite direct attitude and orbit data production. For details, please refer to the data website file of China Resources Satellite Application Center. Data application achievements and prospects: the data are domestic high-resolution data, which can be used to monitor the changes of the Qinghai Tibet Plateau as an Asian water tower and the resulting images, and test the accuracy of other data in the region.
