Comprehensive Calibration and Data Application of High-orbit Ocean-color Satellite

High-orbit ocean observation satellites are effective tools for monitoring the short-term changes in marine environments and the sudden disasters near coastlines. This paper focuses on the comprehensive calibration and data application of high-orbit ocean color satellite technology. The current status and development trends of ocean color sensors in orbit are discussed,and the technical challenges,such as atmospheric correction, radiometric calibration, and sensor stability, are presented. To address these challenges, a unified calibration approach integrating ground-based, laboratory-based and on-orbit calibration methods is proposed. This approach ensures the high-precision calibration of sensors under different phases and conditions. The ground-based calibration,utilizing the standard radiometric sources and precise measurement equipment,ensures the initial accuracy of on-orbit sensors. Meanwhile,the on-orbit calibration involves the continuous monitoring and correction to maintain the long-term stability and data consistency of the sensors. The future developing directions of high-orbit ocean color satellite technology are summarized,and the importances of multisource remote sensing data integration,intelligent calibration algorithms and autonomous on-orbit correction techniques are emphasized. The research aims to provide more accurate and reliable data support for ocean observation, promoting the rwidespread application of high-orbit ocean color satellite technology in environmental monitoring, resource management,and scientific research. © 2024 China Ordnance Industry Corporation. All rights reserved.