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http://dx.doi.org/10.7780/kjrs.2021.37.5.2.3

Introduction on the Products and the Quality Management Plans for GOCI-II  

Lee, Sun-Ju (Korean Ocean Satellite Center, Korea Institute of Ocean Science and Technology)
Lee, Kyeong-Sang (Korean Ocean Satellite Center, Korea Institute of Ocean Science and Technology)
Han, Tae Hyun (Korean Ocean Satellite Center, Korea Institute of Ocean Science and Technology)
Moon, Jeong-Eon (Korean Ocean Satellite Center, Korea Institute of Ocean Science and Technology)
Bae, Sujung (Korean Ocean Satellite Center, Korea Institute of Ocean Science and Technology)
Choi, Jong-kuk (Korean Ocean Satellite Center, Korea Institute of Ocean Science and Technology)
Publication Information
Korean Journal of Remote Sensing / v.37, no.5_2, 2021 , pp. 1245-1257 More about this Journal
Abstract
GOCI-II, succeeding the mission of GOCI, was launched in February 2020 and has been in regular operation since October 2020. Korea Institute of Ocean Science and Technology (KIOST) processes and produces in real time Level-1B and 26 Level-2 outputs, which then are provided by Korea Hydrographic and Oceanographic Agency (KHOA). We introduced current status of regular GOCI-II operation and showed future improvement. Basic GOCI-II products including chlorophyll-a, total suspended materials, and colored dissolved organic matter concentration, are induced by OC4 and YOC algorithms, which were described in detail. For the full disk (FD), imaging schedule was established considering solar zenith angle and sun glint during the in-orbital test, but improved by further considering satellite zenith angle. The number of slots satisfying the condition 'Best Ocean' significantly increased from 15 to 78. GOCI-II calibration requirements were presented based on that by European Space Agency (ESA) and candidate fixed locations for calibrating local observation area were. The quality management of FD uses research ships and overseas bases of KIOST, but it is necessary to establish an international calibration/validation network. These results are expected to enhance the understanding of users for output processing and help establish detailed plans for future quality management tasks.
Keywords
GOCI-II; Level-2 products; Full Disk Schedule; Cal/Val;
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