The purpose of this technical report is to provide current documentation of the Sensor Intercomparison and Merger for Biological and Interdisciplinary Oceanic Studies (SIMBIOS) Project activities, NASA Research Announcement (NRA) research status, satellite data processing, data product validation, and field calibration. This documentation is necessary to ensure that critical information is related to the scientific community and NASA management. This critical information includes the technical difficulties and challenges of validating and combining ocean color data from an array of independent satellite systems to form consistent and accurate global bio-optical time series products. This technical report is not meant as a substitute for scientific literature. Instead, it will provide a ready and responsive vehicle for the multitude of technical reports issued by an operational project. This particular document focus on the variability in chlorophyll pigment measurements resulting from differences in methodologies and laboratories conducting the pigment analysis.VanHeukelem, Laurie and Thomas, Crystal S. and Gilbert, Patricia M. and Fargion, Giulietta S. (Editor) and McClain, Charles R. (Editor)Goddard Space Flight CenterCHLOROPHYLLS; FLUORESCENCE; LIQUID CHROMATOGRAPHY; CALIBRATING; INTERCALIBRATION; WATER COLOR; OCEANS; MULTISENSOR APPLICATIONS; DATA PROCESSING; SCIENTIFIC SATELLITES; TIME SERIES ANALYSIS