POSTER SESSION 3
15:30–17:30, Wednesday, September 16
Poster Session | 1 | 2 | 3 | 4 | Schedule at a Glance
ABSTRACT 1110 | POSTER 159
VALIDATION OF GOCI-II OCEAN COLOR PRODUCTS USING AN INTEGRATED BIO-OPTICAL PROTOCOL AND THEIR APPLICABILITY TO DIURNAL VARIABILITY: CASE STUDIES OF CHL IN THE EAST SEA AND TSM IN THE YELLOW SEA
Geostationary ocean-color observation is essential for resolving short-term variability in optically complex coastal environments. This study evaluates the quality-control performance of the KIOST-KOSC integrated bio-optical protocol, which has been refined over the past two decades. It assesses the validation of Geostationary Ocean Color Imager-II (GOCI-II) products along with their applicability to spatiotemporal analysis in the East and Yellow Seas. Precision evaluation of the integrated protocol revealed that the coefficient of variation (CV) for chlorophyll concentration (CHL) remained below 4.16% through multi-step averaging of six measurements (2 samples × 3 replicates) per station. For total suspended particulate matter concentration (TSM), the use of PCMB filters and triplicate analysis effectively minimized salt-induced errors, achieving stable precision with a CV of 6.83% or less. Remote-sensing reflectance (Rrs) also demonstrated reliability comparable to Fiducial Reference Measurement (FRM) standards through three-minute continuous acquisition and spectral CV analysis. Validation results showed that GOCI-II OCR Level-2 products are highly correlated with in situ data, and primary error sources were identified to facilitate further algorithm improvement. Case studies on the diurnal variability of CHL in the East Sea and TSM in the Yellow Sea confirmed that validated GOCI-II products can quantitatively reproduce phytoplankton photo-adaptation and tide-driven resuspension events. In conclusion, this study suggests that a rigorous protocol-based validation framework is a prerequisite for ensuring the scientific credibility of geostationary ocean-color satellite data.
Jeong-Eon Moon, Korea Institute of Ocean Science and Technology (KIOST), [email protected], https://orcid.org/0000-0003-0952-3310
Jong-Kuk Choi, KIOST, [email protected]
Jae-Hyun Ahn, KIOST, [email protected]
Poster Session | 1 | 2 | 3 | 4 | Schedule at a Glance
