naa a22 4500 510754597 CHVBK 20180411083118.0 cr unu---uuuuu 180411e20130501xx s 000 0 eng 10.1007/s13131-013-0316-2 doi (NATIONALLICENCE)springer-10.1007/s13131-013-0316-2 FY-3A/MERSI, ocean color algorithm, products and demonstrative applications [Elektronische Daten] [Ling Sun, Maohua Guo, Jianhua Zhu, Xiuqing Hu, Qingjun Song] A medium resolution spectral imager (MERSI) on-board the first spacecraft of the second generation of China's polar-orbit meteorological satellites FY-3A, is a MODIS-like sensor with 20 bands covering visible to thermal infrared spectral region. FY-3A/MERSI is capable of making continuous global observations, and ocean color application is one of its main targets. The objective is to provide information about the ocean color products of FY-3A/MERSI, including sensor calibration, ocean color algorithms, ocean color products validation and applications. Although there is a visible on-board calibration device, it cannot realize the on-board absolute radiometric calibration in the reflective solar bands. A multisite vicarious calibration method is developed, and used for monitoring the in-flight response change and providing post-launch calibration coefficients updating. FY-3A/MERSI ocean color products consist of the water-leaving reflectance retrieved from an atmospheric correction algorithm, a chlorophyll a concentration (CHL1) and a pigment concentration (PIG1) from global empirical models, the chlorophyll a concentration (CHL2), a total suspended mater concentration (TSM) and the absorption coefficient of CDOM and NAP (YS443) from China's regional empirical models. The atmospheric correction algorithm based on lookup tables and ocean color components concentration estimation models are described. By comparison with in situ data, the FY-3A/MERSI ocean color products have been validated and preliminary results are presented. Some successful ocean color applications such as algae bloom monitoring and coastal suspended sediment variation have demonstrated the usefulness of FY-3A/MERSI ocean color products. The Chinese Society of Oceanography and Springer-Verlag Berlin Heidelberg, 2013 FY-3A/MERSI nationallicence ocean color nationallicence multisite calibration nationallicence atmospheric correction nationallicence China's regional model nationallicence Sun Ling Key Laboratory of Radiometric Calibration and Validation for Environmental Satellites, China Meteorological Administration (LRCVES/CMA), 100081, Beijing, China aut Guo Maohua National Satellite Ocean Application Service, State Oceanic Administration, 100081, Beijing, China aut Zhu Jianhua National Ocean Technology Centre, State Oceanic Administration, 300112, Tianjin, China aut Hu Xiuqing Key Laboratory of Radiometric Calibration and Validation for Environmental Satellites, China Meteorological Administration (LRCVES/CMA), 100081, Beijing, China aut Song Qingjun National Satellite Ocean Application Service, State Oceanic Administration, 100081, Beijing, China aut Acta Oceanologica Sinica The Chinese Society of Oceanography 32/5(2013-05-01), 75-81 0253-505X 32:5<75 2013 32 13131 https://doi.org/10.1007/s13131-013-0316-2 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s13131-013-0316-2 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Sun Ling Key Laboratory of Radiometric Calibration and Validation for Environmental Satellites, China Meteorological Administration (LRCVES/CMA), 100081, Beijing, China aut NATIONALLICENCE 700 1- Guo Maohua National Satellite Ocean Application Service, State Oceanic Administration, 100081, Beijing, China aut NATIONALLICENCE 700 1- Zhu Jianhua National Ocean Technology Centre, State Oceanic Administration, 300112, Tianjin, China aut NATIONALLICENCE 700 1- Hu Xiuqing Key Laboratory of Radiometric Calibration and Validation for Environmental Satellites, China Meteorological Administration (LRCVES/CMA), 100081, Beijing, China aut NATIONALLICENCE 700 1- Song Qingjun National Satellite Ocean Application Service, State Oceanic Administration, 100081, Beijing, China aut NATIONALLICENCE 773 0- Acta Oceanologica Sinica The Chinese Society of Oceanography 32/5(2013-05-01), 75-81 0253-505X 32:5<75 2013 32 13131 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer