Estimation of PAR at the ocean surface around Korean Peninsula using GOCI & GOCI-II

Abstract

Photosynthesis available radiation (PAR) has a key role for estimating primary production at the ocean. GOCI and GOCI-II were world’s first geostationary ocean color satellite sensors and they observe ocean around Korean Peninsula successfully. However, they were not official PAR product from GOCI and GOCI-II. Here, we developed PAR algorithm for GOCI and GOCI-II. Then, evaluation of daily PAR data from GOCI and GOCI-II was carried out with in-situ measurement data and each sensor. Daily PAR from GOCI showed under 5% of root-means-square error (RMSE) and under -1% of mean-bias error (MBE) as in-situ measurement daily PAR. Daily PAR from GOCI-II showed under 5% of bias with GOCI daily PAR. GOCI and GOCI daily PAR were expected that help to understand primary production at the ocean around Korean Peninsula. At the further study, additional development of GOCI-II daily and hourly PAR data will be carried out.