On-orbit radiometric calibration of the optical sensors on-board SuperView-1 satellite using three independent methods.

摘要: On-orbit radiometric calibration of the optical sensors on-board SuperView-1 satellites is foundation for further quantitative applications. A field campaign was orchestrated to radiometrically calibrate at Baotou site in China during September 2018. Based on collected datasets, three independent methods (reflectance-based, radiance-based, and cross-calibration) were used determine coefficients with multiple permanent artificial targets. Comparisons desert top-of-atmosphere radiance calculated based determined analyzed. Comparison results show that minimum maximum relative differences radiometrically-calibrated TOA between reflectance-based radiance-based are 1.26% 4.23% SV0102 SV0104, respectively. While, 0.82% 6.83% SV0101 SV0103, The reasonably good agreement calibrated these encouraging. An uncertainty analysis also discussed, suggest overall uncertainties predicted less than 4.5%, 4.0%, 5.15% reflectance-based, cross-calibration methods,