第76回学術講演会（令和6年度春季） 

発表番号 Presentation number ：B6（口頭発表 Oral presentation ）

発表題目 Presentation title："Evaluation of Atmospheric Correction Methods for the SGLI/GCOM-C

Instrument and Their Effect on Chlorophyll-a Products for Ocean Color" 

発表者 Speaker ：〇M. Salah(Kyoto University of Advanced Science (KUAS))

・S. I. Salem (KUAS)・N. Utsumi (TIT)・H. Higa (YNU)・J. Ishizaka・K. Oki (KUAS、Tokyo Univ.)

《Abstract》

"Atmospheric correction (AC) is a critical step in deriving accurate remote sensing reflectance (Rrs) for ocean color applications. In this study, three AC methods developed for the SGLI sensor aboard JAXA’s GCOM-C satellite were evaluated and compared: JAXA’s Standard AC, OC-SMART, and NASA’s SeaDAS. The impact of each method on Chlorophyll-a estimation was assessed. JAXA’s Standard AC achieved the lowest RMSE, showing a 10.9% improvement over OC-SMART. In contrast, SeaDAS was unable to retrieve most reflectance values in the 412 nm band. These findings emphasize the importance of AC selection for accurate ocean color analysis".