Dr. Long, from Pacific Northwest National Laboratory, is the site scientist for ARM’s Tropical Western Pacific site and a long-time ARM user. He specializes in the study of clouds and their effect on the surface radiation energy balance of the Earth-atmosphere system. In 2011, he will serve as the principal investigator for two related field campaigns, ARM MJO Investigation Experiment, or AMIE, on Manus Island, and AMIE-Gan, using the second ARM Mobile Facility in the vicinity of Gan Island, Maldives. These campaigns will investigate the evolution of convection within the framework of the Madden-Julian Oscillation within the Indian Ocean area.