Vicarious calibration of COCTS-HY1C at visible and near-infrared bands for ocean color application

• DOI: 10.1364/oe.27.0a1615
• Publication Date: 2019-09-23T17:56:57Z
• Authors: Qingjun Song; Shuguo Chen; Cheng Xue; Mingsen Lin; Keping Du; Sicong Li; Chaofei Ma; Junwu Tang; Jianqiang Liu; Tinglu Zhang; Xiaoxian Huang
• Keywords: Ocean color; Atmospheric correction; Moderate-resolution imaging spectroradiometer; Buoy; Spectroradiometer

Remote sensing reflectance obtained from space-borne ocean color sensors is of great importance to carbon cycle and ocean-atmospheric interactions by providing biogeochemical parameters on the global scale using specific algorithms. Vicarious calibration necessary for obtaining accurate remote that meets application demands atmospheric correction For sensors, vicarious must be done prior correction. The third Chinese Ocean Color Temperature Scanner (COCTS) aboard HY1C satellite was launched September 7, 2018, it will provide essential data complement those existing missions. We used field measurements Marine Optical Buoy (MOBY) aerosol information provided MODerate Imaging Spectroradiometer (MODIS) Terra calculate coefficients, we further evaluated applicability established approach cross-calibration MODIS scale. Finally, coefficients were retrieve optical depth reflectance, which compared Aerosol Robotic Network-Ocean (AERONET-OC) MODIS-Terra Land Instrument (OLCI)-Sentinel-3A operational products. results show are relatively stable reliable all bands ranging visible near-infrared can obtain high-quality data.