Mission and user requirements of geostationary ocean color imager-II (GOCI-II)

Abstract

Geostationary Ocean Color Imager(GOCI-I), the World’s fi rst spaceborne ocean color observation geostationary satellite, was successfully launched on 27 July 2010. The mission and user requirements of GOCIII must be defi ned during the development time and early operation period of GOCI-I. Because the baseline of the main mission of GOCI-IIis to succeed that of GOCI-I, GOCI-II and GOCI-I are similar in terms of mission operation. The main difference between these missions is the global monitoring capability of GOCI-II, in order to meet the necessity of long-term climate change monitoring and research. The user requirements of GOCI- will have higher spatial resolution, 250m× 250m, and 12 spectral bands to fulfi ll GOCI-I’s user request whichcouldn’t be refl ected on GOCI-I requirements due to the technical reason. Dedicated panchromatic band will be added to observe night time for fi shery information. GOCI-II will have a new capability, userdefi nable observation area such as clear sky area without clouds and special event area, etc. It will enable higher applicability of GOCI-II products. GOCI- will perform the observation with 8 times a day, and it’s the same as GOCI-I’s. Additionally, 1 or 2 times of daily global observation is planned in GOCI-II. In this paper, we presented the improved development organization structure to solve the problems that had been confronted so far. GOCI-II system HW design will beproceeded with domestic or foreign space agencies.