Data content: the data set is the domestic high score series (GF1 / 2 / 3 / 4) historical archive satellite data for typical river and lake areas, including the Qinghai Tibet Plateau, Alaska, Scandinavia, Siberia, etc., which can cover typical river and lake areas for effective monitoring. The data range is from 2019 to 2020. Data source and processing method: the data is the original satellite image level 1 product, and the level 1A data product after equalization radiometric correction. Through the equalization function of different detectors, the changes affecting the sensor are corrected, including the absolute correction coefficient of replacing DN value with radiance value. 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. Results and prospects of data application: the data are domestic high score data, which can be applied and popularized, instead of foreign data, and used in many aspects of monitoring in Typical River and lake areas.
