DEVELOPMENT OF NEXT GENERATION GEOSTATIONARY OCEAN COLOR IMAGER

Abstract

The GSD requirement of GOCI- II with 250m×250m at the center of local area was not able to be realized at the development period of GOCI, although many ocean color remote sensing users had continuously requested 250m GSD requirement. Additional 4 spectral bands and a dedicated panchromatic band for nighttime observation will be added to improve the accuracy of data products such as chlorophyll concentration, total suspended sediments, dissolved organic matters, enhancement of atmospheric correction, and to have a novel capability such as PFT(Phytoplankton Functional Type) which enables to discriminate harmful or unharmful red tide. GOCI-II has a plan to implement the user-definable local area observation mode to satisfy the user requests such as ocean observation over clear sky without clouds and special ocean event area. We are expecting this new capability will produce more applicable data products about special event area such as typhoon, oil spill, green algae bloom, and etc. GOCI- II will acquire the observation data with 8 times per day as same as temporal resolution of GOCI. Additionally, daily global observation once or twice per day is planned for GOCI-II for the research of long-term climate change in ocean. In order to develop the GOCI-II with the full satisfaction of user requirements, technical feasibility research is inevitable. In this paper, we present the preliminarAdditional 4 spectral bands and a dedicated panchromatic band for nighttime observation will be added to improve the accuracy of data products such as chlorophyll concentration, total suspended sediments, dissolved organic matters, enhancement of atmospheric correction, and to have a novel capability such as PFT(Phytoplankton Functional Type) which enables to discriminate harmful or unharmful red tide. GOCI-II has a plan to implement the user-definable local area observation mode to satisfy the user requests such as ocean observation over cl