2. PROPOSED WORK2.1 Liaisons with the broader scientific communityIn addition to the mission's scientific objectives and measurement requirements, the development of a comprehensive calibration and validation plan, including detailed test procedures, and an executable algorithm plays a critically important role in ensuring mission success. Successful implementation of these pre-launch activities requires close interaction between project management, the scientific community and instrument suppliers. Additionally, post-launch satellite comparisons are facilitated by active participation in international calibration and characterization organizations. Butler and Dr. Xiong represent NASA's scientific interests in remote sensing as members of the Global Space Intercalibration System (GSICS) Cal/Val Executive Committee and Working Group and as working committee participants of the Committee on Earth Observation Satellites (CEOS). Calibration and Validation Group (WGCV). Interaction and collaboration with the Earth remote sensing community has been established through Dr. Xiong's experience as MODIS Project Scientist, MODIS Calibration Scientist, VIIRS Calibration Scientist and as Technical Lead of the Earth Remote Sensing Community. MODIS Characterization Support Team and Nuclear Power Plant Instrument Characterization Support Team and Dr. Butler's experience as an EOS Calibration Scientist and Deputy NPP Project Scientist for calibration and validation. Additionally, the MODIS and VIIRS instruments on EOS and NPP/JPSS are key sensors to evaluate and guide ongoing studies and future approaches to comparing CLARREO satellite data. As _____??whose??___ liaises with the broader scientific community, we will support the SDT's Solar Comparative Analysis and Reference Intercalibration reflects...... middle of document... ....Based on our experiences gained through our direct involvement in the EOS and NPP/JPSS programs, both conventional and cutting-edge pre-launch calibration and characterization methodologies and approaches will be identified and evaluated with detailed and fully annotated uncertainty reports. These analyzes will then be extended to the post-launch period with the examination of radiometric and spectral uncertainties in satellite instrument intercomparison techniques. The resulting uncertainties will be “pooled” into the overall on-orbit measurement uncertainties for a number of potential design scenarios and testing approaches of the CLARREO reflected solar instrument. All uncertainty analyzes will be performed in accordance with NIST Technical Note 1297, which describes recommended guidelines for evaluating and expressing uncertainty in measurements [R].