USER REQUIREMENTS OF NEXT GEOSTATIONARY OCEAN COLOR IMAGER

Abstract

Geostationary Ocean Color Imager (GOCI-I), the world’s first space-borne ocean color observation geostationary satellite, was launched on June 2010. Development of GOCI-I took about 6 years, and its expected lifetime is about 7 years. The mission and user requirements of GOCI-II are required to be defined at this moment because baseline of the main mission of GOCI-II must be defined during the development time and early operational period of GOCI-I. The main difference between these missions is the global-monitoring capability of GOCI-II, which will meet the necessity of the monitoring and research on climate change in the long-term. The user requirements of GOCI-II will have higher spatial resolution, 250m×250m, and 12 spectral bands to fulfill GOCI-I’s user request, which could not be implemented on GOCI-I for technical reasons. A dedicated panchromatic band will be added for the night-time observation to obtain fishery information. GOCI-II will have a new capability, supporting user-definable observation requests such as clear sky area without clouds and special-event areas, etc. This will enable higher applicability of GOCI-II products. GOCI- II will perform observations 8 times daily, the same as GOCI-I’ s. Additionally, daily global observation once or twice daily is planned for GOCI-II.