In 2001, The Sensor Intercomparison and Merger for Biological and Interdisciplinary Oceanic Studies (SIMBIOS) Program embarked on a collaborative effort with the National Space Development Agency (NASDA) of Japan and the Sea-viewing Wide Field-of-view Sensor (SeaWiFS) Project to reprocess the entire Ocean Color and Temperature Scanner (OCTS) global area coverage (GAC) data set and make those products available to the scientific community. As part of the collaboration, NASDA provided the complete OCTS GAC Level-1A data set (November 1996 through June 1997) to NASA along with their unique expertise and analysis of the data products. (The OCTS GAC data set was created from the LAC resolution data by subsampling every 5th line and 4th pixel). NASA provided the processing expertise, methodologies and resources, and the archive and distribution support.
The focus of the OCTS GAC reprocessing work was to minimize the potential processing-related differences (atmospheric correction and bio-optical algorithms) between the SeaWiFS and OCTS missions, by reprocessing the entire OCTS GAC mission archive using the same software and algorithms employed for standard SeaWiFS processing.