Optimizing Atmospheric Correction through Parallel Acceleration: Reflection Accuracy Analysis of GF-5B Satellite Hyperspectral Sensor Data

The GF-5B satellite is equipped with seven payloads, including a Visible shortwave infrared hyperspectral camera (AHSI), which can simultaneously conduct comprehensive observations of both land and the atmosphere, offering broad application prospects. This article evaluates the quality of GF-5B AHSI data surface reflectance using three evaluation indicators: correlation coefficient, root mean square error, and spectral cosine angle, and compares it with ASD measured spectral data. The results indicate that the GF-5B AHSI load can effectively identify surface mineral information such as kaolinite and chlorite, and has outstanding application capabilities in mineral information extraction in mining areas, geological environment monitoring in mines, and fine extraction of mineral information in mines.