The Whole Sky Imager - A Year of Progress

Much progress has been made this last year in realizing the potential of the Whole sky imager (WSI). Two imagers are deployed (at the Southern Great Plains [SGP] site and the Surface Heat Budget of the Arctic Ocean [SHEBA]), two are being prepared for deployment in the Tropical Western Pacific (TWP), and more are in production. Data products now include daytime thick cloud fraction and calibrated radiance. Night cloud fraction and daytime thin cloud fraction retrievals are in development.